Blog Feed: Interesting Thing of the Day

Ongoing medical research is turning up a multitude of curative uses for honey. Besides soothing sore throats, it may help to heal wounds, prevent tooth decay, and even perhaps even reduce the risk of heart disease.

The Girolle / One small step for cheese engineering

Published on 2012-11-09 02:00:01

An elegant pairing of a simple yet ingenious device and a special kind of Swiss cheese adds an artistic touch to your breakfast.

Mead / The prototypical alcoholic beverage

Published on 2012-11-07 02:00:01

Although wine is most commonly made from grapes, the world's original alcoholic beverage is a variety of wine made from honey.

French Butter Dishes / Fresh butter without refrigeration

Published on 2012-11-05 02:00:01

A refreshingly low-tech way to keep butter fresh without making it rock-hard and unspreadable, French butter dishes rely on simple physics.

Raclette / The cheese that eats like a meal

Published on 2012-11-02 03:00:01

In the great tradition of Swiss cheeses that require special serving rituals, raclette is a cheese normally prepared by melting it on a special grill and scraping it onto potatoes.

The PB&J Campaign / The environmental impact of lunch

Published on 2012-10-31 03:00:01

The latest strategy to stop global warming and save the planet? This one's pretty tough: eat peanut butter and jelly sandwiches. Weird but true.

Coffee Decaffeination Processes / Less buzz for your buck

Published on 2012-10-29 03:00:01

If you need your coffee but can't deal with the caffeine, you may reach for a cup of decaf. But just how did they get the caffeine out of it? The variety of techniques is astonishing.

Lucid Dreams / Waking up to the reality of dreaming

Published on 2012-10-26 02:00:01

Dreams in which you realize that you're dreaming, without waking up, provide exciting opportunities for recreation and personal growth.

Iris Scans / A new angle on photo identification

Published on 2012-10-24 02:00:01

Your eye's iris patterns are more likely to be unique than your fingerprints, making iris scanning a promising biometric tool for verifying that you are who you claim to be.

Eye Language / Look what you're saying

Published on 2012-10-22 02:00:01

A person's eyes, and in particular, the size of the pupils, can give important clues to his or her physical and psychological state.

Brain Machines / Blinking your way to relaxation

Published on 2012-10-19 02:00:01

Using flashing lights (and in some cases sounds), handheld machines can trick your brain into entering a relaxed or meditative state.

Freecycling / Finding your stuff a new home, painlessly

Published on 2012-10-17 02:00:01

Your unwanted stuff needs a new owner. Someone else needs your stuff. Freecycling puts those two needs together with the simplest and most useful online service since Craigslist, and keeps landfills clear at the same time.

Bionic Eyes / Seeing is believing

Published on 2012-10-15 02:00:01

Several techniques are being developed to convert the output from digital cameras into signals the human brain can understand, making them into primitive but functional artificial eyes.

Superautomatic Coffee Machines / The lazy way to make a perfect cup of coffee

Published on 2012-10-12 02:00:01

High-end coffee machines do everything with the single press of a button: grind the beans, tamp them down, custom-brew coffee to your specifications, and eject the used grounds into a holding bin. Great coffee, effortlessly, for a price.

Dream Groups / Intramural introspection

Published on 2012-10-10 02:00:01

Using a simple process developed by Jeremy Taylor, small groups can help their members decode the meanings of their dreams.

Lichens / A tale of two organisms

Published on 2012-10-08 02:00:01

What do fungi, algae, and Peter Rabbit have in common? They were all drawn by Beatrix Potter, who was the first to suggest that lichens may actually be a symbiosis of fungi and algae.

Paris Catacombs / Man-made calcium deposits

Published on 2012-10-05 02:00:01

Beneath the streets of Paris lies a vast network of catacombs, containing the bones of an estimated six million former residents.

Oil from Garbage / Modern-day alchemy

Published on 2012-10-03 02:00:01

As long as we have garbage, we'll never run out of oil, thanks to a new technology called thermal depolymerization process (TDP).

San Francisco's Terra Infirma / Ship to shore

Published on 2012-10-01 02:00:01

Buried beneath the streets of San Francisco are the remains of numerous ships abandoned when their passengers and crew went to the hills to seek their fortunes in gold.

The Woodwose / Bigfoot's European cousin

Published on 2012-09-28 02:00:01

Centuries before Bigfoot found its way into popular mythology, another very similar mythical creature showed up repeatedly in European literature and art.

Truffles / Fungus of the gods

Published on 2012-09-26 02:00:01

These small black (or white) lumps may not look like much, but they are among the world's rarest and most expensive foods. And the aroma is heavenly, at least if you're a pig.

Tulipomania / The quest for the perfect tulip

Published on 2012-09-24 02:00:01

If you thought the dotcom bubble was crazy, you should have seen the Netherlands in the early 17th century. The craze for tulips was so over-the-top that a single bulb could sell for much more than a house.

Polyphasic Sleep / Hacking your internal clock

Published on 2012-09-21 02:00:01

If you just can't seem to find enough hours to get everything done, there's a technique that some claim will let you sleep a total of just two hours per day, in the form of six 20-minute naps, without sacrificing your health or alertness.

Bossaball / The game with bounce

Published on 2012-09-19 02:00:01

What do you get if you combine volleyball, soccer, gymnastics, and the Brazilian martial art of capoeira, and play it on an inflatable court with trampolines? It's bossaball, the latest rage in team sports in Spain and Belgium.

The Grande Chartreuse / Keeping the faith quietly

Published on 2012-09-17 02:00:01

Nestled in a scenic valley in the French Alps is a monastery that's home to some of the world's most solitary monks. But there's more to these Carthusians (the subject of a documentary called Into Great Silence) than you might think.

The Influence of Color on Taste Perception / Palette vs. palate

Published on 2012-09-14 02:00:01

From green eggs and ham to purple ketchup, foods with unusual colors can be incorrectly perceived as tasting different from their normal counterparts.

826 National / Pirates, spies, superheroes, and young authors

Published on 2012-09-12 02:00:01

San Francisco has its very own pirate supply store, which serves as a front for a nonprofit organization that teaches writing skills to kids. Other local chapters have stores that sell supplies for superheroes, secret agents, space travelers, and monsters

Nyepi / Bali's day of silence

Published on 2012-09-10 02:00:01

On the day designated as the beginning of the new year in Bali, residents celebrate with silence, pretty much the opposite of the way it's done in North America.

The Tongue-Eating Louse / A revolting-but-true fish story

Published on 2012-09-07 02:00:01

One of the world's ickiest creatures is a parasite that attaches itself to the tongue of a fish and eventually replaces the entire tongue with itself.

Chinooks / Snow-eating winds of the Rockies

Published on 2012-09-05 02:00:01

A meteorological phenomenon that can bring extreme temperature changes within a short period of time, chinook winds are created when warm, wet winds blow from the Northwest coast of North America over the Rockies.

Non-Newtonian Fluids / When liquids behave like solids

Published on 2012-09-03 02:00:01

Some liquids have the curious property of behaving like solids when stress is applied. Walking across a vat full of cornstarch and water is just the beginning.

The Central - Mid-Levels Escalator / Hong Kong's moving landmark

Published on 2012-08-31 02:00:01

Hong Kong has excellent public transit, but many people make their daily commutes on the world's longest outdoor covered escalator.

The Wallace Line / Evolution and continental drift

Published on 2012-08-29 02:00:01

An imaginary line drawn in 1859 through the middle of what is now Indonesia demarcated two very different regions of animal life, even though they were strangely close together. A century later, the line turned out to be the edge of a continental plate.

Entomophagy / Insects as food

Published on 2012-08-27 02:00:01

Don't think of mosquitos, water bugs, crickets, and other bugs as pests. Think of them as food! A surprising number of people do, and not just in remote, undeveloped places. Bug-eating is on its way to becoming mainstream cuisine.

Proxemics / The study of personal space

Published on 2012-08-24 02:00:01

If you've ever had the feeling that others are standing a bit too close to you, you're not alone. Each individual and culture has different notions of what distances are appropriate for certain kinds of interactions, and mismatches can be uncomfortable.

Ethogeology / Animals as seismographs

Published on 2012-08-24 02:00:01

Some animals are supposedly aware of an impending earthquake or volcano because they detect sounds or vibrations too subtle for modern measuring devices. If true, this could provide clues leading to better earthquake prediction tools.

The Church of the Flying Spaghetti Monster / Faith with a side of Parmesan

Published on 2012-08-22 02:00:01

In the ongoing battle between so-called Intelligent Design and evolution, one figure stands (or rather flies) above the rest: the Flying Spaghetti Monster, who created the world with his Powerful Noodly Appendage.

Portmeirion / The Folly of Sir Clough Williams-Ellis

Published on 2012-08-20 02:00:01

An English-born Welsh architect set out to create not just one building, but an entire town in harmony with its environment. The result was a beautiful site that is in some ways the forerunner of sustainable development.

Mondegreens and Eggcorns / Giving old words a new ring

Published on 2012-08-17 02:00:01

Two common (and related) language mistakes affect almost everyone at some point, and now that we have clever names for them, we can laugh at them even more easily.

Pitcairn Island / Haven for homeless mutineers

Published on 2012-08-15 02:00:01

What happened to the mutineers on the Bounty? Some of them went on to settle one of the remotest and least understood islands in the world.

Mystery Park / The theme park that aliens built

Published on 2012-08-13 02:00:01

A now-defunct theme park near Interlaken, Switzerland was designed around exhibits showcasing author Erich von Daniken's theory that aliens brought advanced technology to Earth thousands of years ago.

Geysers / Fragile spectacles

Published on 2012-08-10 02:00:01

Only a rare confluence of four peculiar geological features can create the dramatic yet fragile natural fountains known as geysers. Some of them may spit out water that has been accumulating for hundreds of years.

Ethanol Batteries / High-energy cocktails

Published on 2012-08-08 02:00:01

The next revolution in battery technology for cell phones, laptops, and portable electronics may be special fuel cells you can recharge with a thimbleful of your favorite cocktail.

Sears Modern Homes / Ordering houses by mail

Published on 2012-08-06 02:00:01

For two decades in the early 20th century, Sears Roebuck and Co. sold entire houses through their mail-order catalogs, in the form of do-it-yourself kits that featured such modern amenities as indoor plumbing and electricity.

Hay-on-Wye / The Town of Books

Published on 2012-08-03 02:00:01

A small Welsh town's claim to fame is that it has one bookstore for every 37 residents. An annual literary festival draws vast crowds of book buyers, not to mention some of the world's most famous writers.

Vulcan, Alberta / The town that's out of this world

Published on 2012-08-01 02:00:01

A small town in Alberta, Canada was originally named after a Roman god, but more recently the citizens have capitalized on the name's connection to Star Trek as a way of promoting tourism.

National Novel Writing Month / Becoming a novelist in 30 days

Published on 2012-07-30 02:00:01

Every November, thousands of people around the world write entire 50,000-word novels from scratch. It's ambitious and sometimes crazy, but there is no stopping novel-writing fever.

Fernet-Branca / Italy's mystery liqueur

Published on 2012-07-27 02:00:01

An unusual liqueur made in Italy is especially popular in San Francisco and Argentina. What's in it? The manufacturer refuses to say, but what you do not know might be good for you.

Kite Sails / A second wind for large ships

Published on 2012-07-25 02:00:01

Using sails to propel ships is so two centuries ago. But replace the sails with special kites, and wind power turns out to be the most modern way to improve the fuel efficiency of even the largest cargo ships.

Rarely Blooming Plants / The Titan Arum lily, the Kurinji plant, and the Talipot palm

Published on 2012-07-23 02:00:01

Several unusual plants flower so seldom that one may be able to witness it only once in a lifetime.

Teatro La Fenice / The phoenix of Venice

Published on 2012-07-20 02:00:01

A legendary opera house in Venice, whose name translates as the phoenix, lived up to the moniker by burning down and being rebuilt twice.

Anopsology / The raw facts about the raw-food movement

Published on 2012-07-18 02:00:01

There are fad diets and fringe diets...and then there is anopsology, the belief that humans should eat only raw, unprocessed fruits, vegetables, and (yes) meats.

Anopsology / The raw facts about the raw-food movement

Published on 2012-07-18 02:00:01

There are fad diets and fringe diets...and then there is anopsology, the belief that humans should eat only raw, unprocessed fruits, vegetables, and (yes) meats.

Skara Brae / House of sand and rock

Published on 2012-07-16 02:00:01

A neolithic stone village in Scotland was preserved by being covered with sand for thousands of years. Now wind and water threaten it again.

Skara Brae / House of sand and rock

Published on 2012-07-16 02:00:01

A neolithic stone village in Scotland was preserved by being covered with sand for thousands of years. Now wind and water threaten it again.

The Dalahäst / Symbol of Sweden

Published on 2012-07-13 02:00:01

The red horse that serves as a decorative motif on lots of IKEA items is actually a cultural icon in Sweden with a long and storied history.

The Dalahäst / Symbol of Sweden

Published on 2012-07-13 02:00:01

The red horse that serves as a decorative motif on lots of IKEA items is actually a cultural icon in Sweden with a long and storied history.

Micronations / Starting your own country

Published on 2012-07-11 02:00:01

It sounds like a dream come true: starting a tiny country of your own. Quite a few people have tried, but the results have been less than spectacular. The biggest trick: getting other countries to recognize your new nation.

Micronations / Starting your own country

Published on 2012-07-11 02:00:01

Churchill, Manitoba / Polar bear capital of the world

Published on 2012-07-09 02:00:01

A tiny town in northern Manitoba is accessible only by rail or air, but it still manages to draw more tourists each year than it can handle. The big draw? Polar bears, which you can observe from the comfort of a huge, heated Tundra Buggy.

Churchill, Manitoba / Polar bear capital of the world

Published on 2012-07-09 02:00:01

The Swedish Ship Götheborg / Rebuilding history

Published on 2012-07-06 02:00:01

A Swedish trading ship that sank in 1745 was recently rebuilt and has once again sailed to China. Although the new ship makes some concessions to modern shipbuilding requirements, it remains true to the spirit of the original.

The Swedish Ship Götheborg / Rebuilding history

Published on 2012-07-06 02:00:01

The Golden Spruce / Tragic fall of a legendary tree

Published on 2012-07-04 02:00:01

A highly unusual Sitka Spruce tree in British Columbia had golden needles and a conical shape, and was revered by nearby indigenous people. It was cut down by a logger-turned-environmentalist in a bizarre twist of illogic.

The Golden Spruce / Tragic fall of a legendary tree

Published on 2012-07-04 02:00:01

Doble Steam Cars / The steam engine's last stand

Published on 2012-07-02 02:00:01

How'd you like a car with great gas mileage, superb handling, almost zero emissions, and a whisper-quiet engine? Go back about 80 years and get a super-expensive Doble steam car.

Doble Steam Cars / The steam engine's last stand

Published on 2012-07-02 02:00:01

How'd you like a car with great gas mileage, superb handling, almost zero emissions, and a whisper-quiet engine? Go back about 80 years and get a super-expensive Doble steam car.

Aquanomy / The quest for the best bottled water

Published on 2012-06-29 02:00:01

The latest trend in bottled water is the art (or science) of choosing just the right kind of water to pair with your food (based on mineral content, bubbles, pH, and so on). One Paris restaurant serves over 80 varieties of bottled water.

Aquanomy / The quest for the best bottled water

Published on 2012-06-29 02:00:01

The Marree Man / Mystery artwork in the desert

Published on 2012-06-27 02:00:01

The world's largest piece of artwork is a geoglyph created anonymously in 1998 in the Australian desert. Impressive as it is, it has upset the locals, and will apparently be left to fade into oblivion.

The Marree Man / Mystery artwork in the desert

Published on 2012-06-27 02:00:01

Gross National Happiness / Bhutan's bottom line

Published on 2012-06-25 02:00:01

Most countries measure their economic growth using GDP (gross domestic product) or GNP (gross national product). Bhutan instead measures its gross national happiness, or at least claims to.

Assateague Island / The beach where people go to enjoy . . . the beach

Published on 2012-06-22 02:00:01

An island off the coast of Maryland and Virginia has beautiful, uncommercial beaches, but is best known for the horses that live there and the unusual way the locals keep their numbers under control.

Lichtenberg Figures / Artificial lightning fossils

Published on 2012-06-20 02:00:01

An 18th-century German physicist found a way to capture the shape of a lightning discharge, and the discovery formed the basis of today's photocopiers and laser printers. It also makes for some nifty high-tech art.

Beurre Salé / The savory treat from Brittany

Published on 2012-06-18 02:00:01

An old specialty from the Brittany region of France, this type of salted butter may give your cardiologist a fit, but its history is as rich as its taste.

Ischigualasto / Triassic Park in Argentina

Published on 2012-06-15 02:00:01

A park in northwestern Argentina earned the nickname Valley of the Moon for its stark landscape and weird rock formations, but its real claim to fame is an extensive cache of rare fossils that help to show the origins of both dinosaurs and mammals.

The Fata Morgana Effect / Fairy castles in the air

Published on 2012-06-13 02:00:01

A mirage in which a building, ship, or other structure appears to hover above the ground was named after the legendary half-sister of King Arthur.

Quantized Time / Split-second thinking

Published on 2012-06-11 02:00:01

Is there such a thing as an instant of time, a moment so short that it cannot be subdivided any further, or is time continuous? Some scientific theories say yes, some say no, and other say probably, but it doesn't make any practical difference.

Hubbert's Peak / The controversial theory of Peak Oil

Published on 2012-06-08 02:00:01

A theory proposed in the 1950s says that the world's production of oil has already peaked and is heading toward a rapid decline. Is it truth, fiction, or merely optimism?

Radio Call Letters / Minding your K's and W's

Published on 2012-06-06 02:00:01

In the U.S., radio stations west of the Mississippi have call letters starting with K, while those east of the Mississippi start with W. Except for the ones that don't. The story behind the rule and its exceptions involves a surprising number of unknowns.

The Kakapo Parrot / Staying alive despite its best efforts

Published on 2012-06-04 02:00:01

A severely endangered species, this highly unusual flightless bird in New Zealand evolved with virtually no means of defense against predators. After driving them to the brink of extinction, humans are now their best hope for survival.

The Nazca Lines / Peru's mysterious geoglyphs

Published on 2012-06-01 02:00:01

A series of gigantic drawings on a desert floor in Peru depict people, animals, and complex geometric shapes. They were made thousands of years ago, but can only be seen in their totality from the air, making their origin somewhat mysterious.

Project Habakkuk / Building aircraft carriers out of ice

Published on 2012-05-30 02:00:01

During World War II, the Allies concocted an ambitious, if flawed, plan to construct torpedo-proof aircraft carriers out of ice in order to protect shipping channels beyond the reach of land-based aircraft.

Pontcysyllte Aqueduct / Engineering marvel of the Canal Age

Published on 2012-05-28 02:00:01

A Welsh aqueduct completed in the early 19th century was constructed right over a river; instead of being used to transport water, it used water to transport cargo.

Solar Sails / The next big thing in space travel

Published on 2012-05-25 02:00:01

Outfit a spacecraft with a huge but incredibly lightweight mirror, and it can travel indefinitely, without fuel, at speeds that eventually exceed those of conventional rocket-powered craft.

DNA Fingerprinting / Not just for crime fighting

Published on 2012-05-23 02:00:01

Everyone knows that DNA can be used to identify a child's parents or solve crimes, but the applications of DNA fingerprinting are spreading. The technique can be used to authenticate rice, wine, or medicine, fight disease, and trace human migration.

Quiet Parties / Silent night out on the town

Published on 2012-05-21 02:00:01

A night out on the town with friends doesn't have to mean a headache and a sore throat from yelling over the din at a noisy bar or club. You can get all the interaction, but without the noise, if you know where to go.

Highgate Cemetery / Toto, I don't think we're in London anymore

Published on 2012-05-18 02:00:01

Off the beaten path in the city of London is a sprawling cemetery that looks like something straight out of a horror movie. Its residents include Karl Marx, Michael Faraday, and (according to some) a vampire.

The Beale Ciphers / Yet another story of secret codes and hidden treasure

Published on 2012-05-16 02:00:01

One of the most vexing unsolved cryptographic puzzles of the last two centuries may point to buried treasure, but odds favor a more prosaic explanation.

Saffron / The ultimate culinary delicacy

Published on 2012-05-14 02:00:01

The world's most expensive food product, saffron is an essential component of such dishes as bouillabaisse and paella. Literally and figuratively, it's very nearly worth its weight in gold.

The Coelacanth / Re-historic fish

Published on 2012-05-11 02:00:01

An ancient fish, previously known only from fossils more than 65 million years old, turns up alive in 1938, only to become endangered again.

Euskara / The extraordinary Basque language

Published on 2012-05-09 02:00:01

The peculiar language of the Basque people in northern Spain and southwestern France doesn't seem to fit any linguistic expectations. But it's still easy to learn.

Emperor Norton / Monarch of San Francisco

Published on 2012-05-07 02:00:01

San Francisco was once the proud home of an eccentric character who called himself Emperor of the United States. He wisely outlawed use of the term "Frisco."

Coin Tossing / Putting a new spin on randomness

Published on 2012-05-04 02:00:01

If you need a quick, random decision, you'll probably toss a coin. But coin tosses may not be so random after all.

Breathing Liquid / The frontiers of human respiration

Published on 2012-05-02 02:00:01

Under some very specific conditions, humans can breathe special liquids. This technique has potential applications in medicine and diving, but it's not without serious problems.

Bee Venom Therapy / A stinging endorsement

Published on 2012-04-30 02:00:01

Bee stings are extremely unpleasant, but some medical conditions can supposedly be treated by voluntarily stinging oneself.

Tree Tumbo / Mystery plant of the desert

Published on 2012-04-27 02:00:01

One of the world's oddest plants looks like an ugly mass of leaves, but it can survive on the moisture from desert fog for thousands of years.

Optical Painters' Aids / A matter of perspective

Published on 2012-04-25 02:00:01

One of the latest debates raging in the art world involves the claim that Vermeer and other famous painters used optical aids such as a camera obscura to achieve realistic perspectives in their work.

The Milgram Obedience Experiments / Just following orders

Published on 2012-04-23 02:00:01

Controversial experiments conducted in the 1960s showed that ordinary people were willing to inflict pain on others rather than disobey an authority figure.

InterPlay / Getting grown-ups back into their bodies

Published on 2012-04-20 02:00:01

When adults forget how to play, this program can help to remind them what it's like to have fun in some of the most basic human ways.

Parkour / Turning a city into an obstacle course

Published on 2012-04-18 02:00:01

An extreme urban sport combines running, gymnastics, dance, and martial arts. To participate, all you need is a good pair of shoes, thorough training, and nerves of steel.

Operation Migration / Follow that airplane!

Published on 2012-04-16 02:00:01

When endangered birds are raised in captivity, teaching them how to migrate can be tricky. But it's possible, if you can convince them that an airplane is just another bird.

Portmanteau / When words intertwingle

Published on 2012-04-13 02:00:01

A linguistic phenomenon in which two words combine in certain ways to form a new one was named, and put to great comedic effect, by Lewis Carroll.

Passenger Pigeons / The great American extinction

Published on 2012-04-11 02:00:01

The last surviving member of a bird species that once numbered in the billions died in 1914. Their extraordinary extinction is a sad commentary on human values.

Leonardo's Robots / Renaissance man meets mechanical man

Published on 2012-04-09 02:00:01

Leonardo da Vinci was many things, possibly including the world's first roboticist. Sketches from 1495 supposedly constitute plans for a humanoid robot.

The 1715 Spanish Plate Fleet / Disaster on the Treasure Coast

Published on 2012-04-06 02:00:01

A fleet of ships carrying gold from the New World to Spain in 1715 sank in a hurricane. Some of the ships have never been found, but their treasures have washed up on the Florida shores for centuries.

The Autogyro / Taking the proto-helicopter for a spin

Published on 2012-04-04 02:00:01

What do you get if you cross and airplane and a helicopter? A funny-looking aircraft with an unpowered rotor. Whatever else you can say about it, it won't stall at slow speeds.

Sedna's Moon / Mysteries of the solar system's most distant member

Published on 2012-04-02 02:00:01

A planetoid orbiting the Sun much farther away than Pluto should have had a moon, according to astronomical calculations, but it didn't show up in photographs. What happened to it?

The Pont d'Avignon / Miracle bridge to nowhere

Published on 2012-03-30 02:00:01

In the medieval French city of Avignon, once the home of the pope, a bridge stops abruptly halfway across the Rhône river. Once important for spiritual reasons, its fame lives on in a nursery rhyme.

The Story of Toilet Paper / What goes around, comes around

Published on 2012-03-28 02:00:01

Where would modern civilization be without toilet paper? And yet, it was invented only in the late 19th century. How it came to have its current form is a delicate story.

The Wet Collodion Process / Developing a better negative

Published on 2012-03-26 02:00:01

An intellectual property lawsuit in the mid-1800s ended in defeat for both sides, but it left us with the process whereby a photographic negative could make any number of prints.

Biodegradable Plastic / The quest for impermanence

Published on 2012-03-23 02:00:01

Plastics are durable, inexpensive, and versatile, but have the annoying tendency not to break down in landfills. New formulas may solve that problem.

Space Pens / What to use when your writing lacks gravity

Published on 2012-03-21 02:00:01

They write upside-down, underwater, on grease, in zero gravity, and in a vacuum. But did space pens really cost NASA $1 million to develop?

House of the Future / Disneyland's 1957 all-plastic house

Published on 2012-03-19 02:00:01

Wood, steel, and concrete are so passe when it comes to building materials. The future (as of 1957) would be houses built and furnished entirely out of plastic.

Bakelite / The Plastic Age

Published on 2012-03-16 02:00:01

An early type of plastic that was once dismissed as a sticky "goo" turned into a major material for fashioning all sorts of household goods from the 1920s through the 1950s.

The Paperclip / The twisted tale of paper's best friend

Published on 2012-03-14 03:00:01

The most mundane of office supplies has a storied past. Without this modest invention, paper fastening would never be as easy as it is today. Wireless communication might suffer too.

The Crypt of Civilization / Museum in a time capsule

Published on 2012-03-12 03:00:01

There are time capsules, and then there are time capsules. A vault sealed in 1940 in Atlanta contains a huge stash of artifacts that should be unearthed in 8113.

Leap Seconds / Time keeps on slippin'

Published on 2012-03-09 02:00:01

The Earth has the annoying tendency to vary its speed of rotation, and to compensate for this, the world's timekeeping officials must sometimes add an extra second to the day.

The Antikythera Mechanism / Computer from ancient Greece

Published on 2012-03-07 02:00:01

The world's oldest surviving geared mechanism is a remarkable analog astronomical computer built by the Greeks in around 82 B.C. But after this device was created, its technology was seemingly lost for 1000 years.

The Longitude Problem / Finding your way around the world with a watch

Published on 2012-03-05 02:00:01

Finding your longitude at sea today is a simple matter of glancing at your GPS. But before satellites, computers, and digital clocks, the problem was quite a bit more complicated.

Sleep Debt / Wake now, pay later

Published on 2012-03-02 02:00:01

Do credit card balances and car payments keep you up at night? If so, you may be accumulating yet another form of debt, and the only way to pay it off is to stay in bed.

Zeno's Paradoxes / Proof that motion unexists

Published on 2012-02-29 02:00:01

An ancient Greek philosopher attempted to prove that motion is not merely possible, it unexists. Even today, some philosophers find his arguments moving.

Safety Coffins / The fact and fiction of dead ringers

Published on 2012-02-27 02:00:01

Worried that you might accidentally be buried alive? Shell out a few extra bucks for a coffin with an alarm system. But don't think that'll make you a dead ringer.

Optical Telegraphs / 18th century wireless telecommunications

Published on 2012-02-24 02:00:01

Long before the technology existed to make the electrical telegraph a reality, inventors devised numerous optical devices for sending data over long distances.

Mail Recovery Centers / Undead letter offices

Published on 2012-02-22 02:00:01

When a package gets lost in the U.S. Mail, where does it go? Either to St. Paul or Atlanta, where federal employees make valiant efforts to reunite them with their senders or receivers.

The Voynich Manuscript / Cryptography's holy grail

Published on 2012-02-20 02:00:01

An elaborate, 240-page manuscript from the 13th century remains one of cryptography's most puzzling artifacts. My guess: it's a student's notebook.

Water Freezing and Boiling Myths / Legend, science, and common sense

Published on 2012-02-17 02:00:01

Among the myths circulating about water are that hot water freezes faster than cold water, and cold water boils faster than hot water. But there may be a bit of truth to these claims after all.

Castor Oil / The all-purpose health aid and poison

Published on 2012-02-17 02:00:01

The old cure for constipation has also been used as a weapon, and extracts from the same plant produce a deadly poison.

The Bavarian Purity Law / Beer and tradition

Published on 2012-02-13 02:00:01

Good brewers around the world still follow a Bavarian law from 1516 that stipulates the only three allowable ingredients in beer. Or four, if you count yeast.

The Martini / Why everything you know is wrong

Published on 2012-02-10 02:00:01

James Bond may have ordered his martini shaken, not stirred, because of a shaken martini's greater health benefits. That's just one of several surprising facts about this trendy drink.

White Tea / Quest for a better brew

Published on 2012-02-08 02:00:01

Take tender, young tea leaves and dry them quickly without letting them oxidize for a tea with a delicate flavor and, reputedly, numerous health benefits.

Ball Lightning / Unsatisfactorily identified flying objects

Published on 2012-02-06 02:00:01

During a thunderstorm, a bright fireball floats through the air for several seconds or longer, perhaps even indoors. This rare phenomenon resists scientific explanations, but don't go blaming UFOs.

Murano Glass / The mirror of Venice

Published on 2012-02-03 02:00:01

A suburb of Venice has been famous for nearly a millennium for producing some of the world's finest and most distinctive glassware.

Fire Breathing / Don't try this at home

Published on 2012-02-01 02:00:01

Just another in the long list of dangerous activities I decline to do and urge you never to try at home is the visually impressive art of spitting fuel onto a flame.

Raku / Zen and the art of tea bowls

Published on 2012-01-30 02:00:01

For a traditional Japanese tea ritual, not just any sort of tea cup will do. You want one made by hand using a method from the 16th century that infuses your tea bowl with Zen sensibilities.

Microbial Fuel Cells / Electricity from bugs

Published on 2012-01-27 02:00:01

Fuel cells generally rely on hydrogen to create electricity, but hydrogen may be hard to obtain. Putting bacteria to work can eliminate a step or two in the process.

Vegetable Oil as Diesel Fuel / Fries and a fill-up

Published on 2012-01-25 02:00:01

With some minor modifications (or the use of a special additive), your diesel-powered car or truck can run on used vegetable oil, potentially saving you lots of money on fuel.

Memetics / The science of idea propagation

Published on 2011-07-04 02:00:01

The way beliefs spread from one person to another resembles, in some ways, the way a virus spreads. A modern theory of idea epidemiology casts new light on religions, fads, political movements, and more.

Intaglio Printing / Duplicating under pressure

Published on 2011-07-01 02:00:01

For the highest quality large-scale printing possible with current technology, use the technique that carved out a niche for itself in paper currency.

3-D Printers / Rapid prototyping and beyond

Published on 2011-06-29 02:00:01

The mechanism from an ordinary, run-of-the-mill inkjet printer can be modified to "print" solid, 3D objects. This and other comparable technologies can be used for rapid prototyping.

Sea Monkeys / New life for an old fad

Published on 2011-06-27 02:00:01

Instant life! Just add water! Sea Monkeys are back, but brine shrimp still don't make particularly good pets. Sneaky marketing strikes again.

Fleur de Sel / The last word in gourmet salt

Published on 2011-06-24 02:00:01

One of the world's rarest and most expensive kinds of salt comes from the sea, but has a very special method of harvesting.

The Color Purple / Shades of royalty and mythology

Published on 2011-06-22 02:00:01

The color of royalty, purple is more than just a pretty shade. One the one hand, it has the odd property of being a sort of optical illusion, and on the other, we owe all our modern fabric dyes to its existence.

Salzbergwerk Berchtesgaden / Mining salt in Bavaria

Published on 2011-06-20 02:00:01

If you want to contemplate the magical powers of salt, there's no better place than a salt mine. This one near Salzburg in Bavaria is open to tourists and features an underground salt lake.

Bookcrossing / Passing the book

Published on 2011-06-17 02:00:01

If you love a book, set it free. That's the idea behind a service that aims to turn the entire world into a library by recirculating good, used books in public places.

Paying It Forward / Spreading the good deed meme

Published on 2011-06-15 02:00:01

Instead of expecting someone to repay you for a good deed, you could ask them to do a good deed for someone else (and keep the chain of goodness going). It's a lovely notion, but fraught with problems.

Rent-a-Dog / Canine company by the hour

Published on 2011-06-13 02:00:01

You can rent a car, bike, or hotel room when you travel, so why not a dog? Strange but true: in some places you actually can rent a dog for an afternoon. Critics think it's cruel and unusual.

Spotted Handfish / Fish that walk

Published on 2011-06-10 02:00:01

This small fish that lives off the coast of Tasmania has fins that look and act like legs. It can swim, but it prefers to walk along the sea floor. But it's an endangered species, and might soon take its final walk.

Carfree Cities / Revenge of the pedestrian

Published on 2011-06-08 02:00:01

Cars can be a blessing and a curse, but the layout of most cities makes them a necessity for many people. With careful planning, cities can be designed (or redesigned) to minimize dependence on the automobile.

Labyrinth Walks / The twisty path to clarity

Published on 2011-06-06 02:00:01

Meditation is a great way to relieve stress, but it need not involve sitting still. One increasingly popular form of meditation involves walking along a twisty path known as a labyrinth.

Wife-Carrying Contests / Obstacles to a healthy relationship

Published on 2011-06-03 02:00:01

Those wacky Finns. The best-known and goofiest sporting competition in Finland involves carrying a woman through an obstacle course. The reward? The woman's weight in beer!

Pilgrimage to Santiago / Spiritual walk across Europe

Published on 2011-06-01 02:00:01

If you want to clear your head, go for a walk. For a really clear head, try walking anywhere from 60 to 1,200 miles and ending up at a church in the town of Santiago, Spain. You'll be in good company: tens of thousands make this pilgrimage every year

Pedometers / Your mileage may vary

Published on 2011-05-30 02:00:01

You can measure the distance you walk or run (with a fairly large margin of error) by wearing a pedometer. For this marvelous invention, we must thank none other than Thomas Jefferson.

Charlie and His Orchestra / Swing music as Nazi propaganda

Published on 2011-05-27 02:00:01

Hitler's government tried repeatedly to outlaw jazz, and especially swing, which were seen as symbolizing the enemy's values. But they also secretly created their own swing band as a vehicle for spreading propaganda.

Foucault's Pendulum / Low-tech proof of Earth's rotation

Published on 2011-05-25 02:00:01

In order to prove the rotation of the Earth, all you need is a heavy weight, a long wire, and a tall, sturdy ceiling from which to hang it. Well, that and enough grasp of math, geometry, and philosophy to interpret the results.

The Oropendola / Wacky gymnast of the bird world

Published on 2011-05-23 02:00:01

Some tropical birds are known primarily for their colorful plumage. The Oropendola gets its name from its odd behavior: swinging around on tree branches like a gymnast. It's proof that birds just want to have fun.

Burghausen / The longest castle in Europe

Published on 2011-05-20 02:00:01

Of the many grand and well-known castles in Bavaria, Burghausen has an unusual claim to fame: its length of more than a kilometer.

Freeze Drying / The amazing science of lyophilization

Published on 2011-05-18 02:00:01

It's not just for instant coffee and camping foods anymore! The process by which virtually all the water can be removed from something while keeping its structure intact is being applied to everything from flowers to pets.

The Musée Mécanique / Good old-fashioned interactive multimedia

Published on 2011-05-16 02:00:01

Before electronic video games, arcades were filled with electromechanical games, fortune-telling machines, and other amusements. Hundreds of these vintage devices live on in San Francisco's Musée Mécanique.

Bodie, California / The liveliest ghost town in the West

Published on 2011-05-13 02:00:01

In the Sierra Nevada mountains of eastern California lies the remains Bodie, once the state's second-largest city. A bustling mining town in its heyday, it's now lovingly preserved in a state of arrested decay.

Sarlat La Canéda / Time travel, French style

Published on 2011-05-11 02:00:01

The French town of Sarlat looks much the same as it did in medieval times, except that now there are more foie gras shops and internet cafés.

Tachyons / Tracking the elusive faster-than-light particle

Published on 2011-05-09 02:00:01

The Theory of Relativity says that nothing can accelerate to a speed faster than light. But a hypothetical particle called a tachyon gets around this rule because it started out going faster than light.

The Great Clock of Westminster / Big Ben and beyond

Published on 2011-05-06 02:00:01

The clock tower that rises from the British Houses of Parliament is often mistakenly called Big Ben, but that's actually the nickname of one of the bells inside. That's just one of several surprising facts about this well-known clock.

Carbon Dating / Decay rates create debates

Published on 2011-05-04 02:00:01

Scientists can determine the age of very old organic artifacts using the clever process known as carbon dating. But how does it actually work, and why do some religious groups find it so problematic?

Rigo Artwork / Painting by the numbers

Published on 2011-05-02 02:00:01

Some of San Francisco's best public artwork was made by an artist who changes his surname every year. The man who was Rigo 82 in 1982 was Rigo 06 in 2006, but his masterpieces are timeless.

Pennsylvania Coal Fires / Heat under the street

Published on 2011-04-29 02:00:01

When a fire gets started in a coal mine, it can be impossible to extinguish. Coal mine fires have been raging in Pennsylvania for over 40 years, with no end in sight.

Spontaneous Human Combustion / Answering the burning questions

Published on 2011-04-27 02:00:01

It makes for great TV shows and horror stories, but is it really possible for a person to spontaneously burst into flames? The experts don't doubt that people have burned to death, but the whole spontaneity thing is problematic.

The Writings of Carlos Castaneda / Sorcery, mythology, or both?

Published on 2011-04-25 02:00:01

Revered by some as a great spiritual leader and mocked by others as a fraud, Carlos Castaneda made a huge (if dubious) impact on the way people think about sorcery and mysticism.

Membership Libraries / Exclusive playgrounds for book lovers

Published on 2011-04-22 02:00:01

Rare yet marvelous institutions, membership libraries are open only to those who have paid their annual dues. In exchange you get access to a place where books are taken as seriously as they should be.

White Noise / Color-coding sound

Published on 2011-04-20 02:00:01

People commonly refer to static, hissing, rainfall, and other similar sounds as white noise, but real white noise is a bit different. And yes, noise comes in other colors as well!

Anechoic Chambers / The sound of silence

Published on 2011-04-18 02:00:01

For testing audio equipment and other sensitive tasks that require a complete absence of reflected sounds, an anechoic chamber is the ultimate cone of silence.

Cochlear Implants / The sound and the fury

Published on 2011-04-15 02:00:01

With an external microphone and processing circuitry and tiny electrodes implanted into the cochlea, some deaf people can regain partial hearing. But is this a cure or an assault on entire culture?

Binaural Beats / The magical music of the brain

Published on 2011-04-13 02:00:01

When your brain tries to process two tones with slightly different pitches, one delivered to each ear, it creates the sensation of a rhythmic beat. This phenomenon can help put the brain into a relaxed state.

Holophonic Sound / 3D audio with just two speakers

Published on 2011-04-11 02:00:01

Surround sound gives you immersive audio in a single plane, and requires several speakers to do so. But holophonic sound promises 3D sound that includes the up-down axis, and requires only two speakers altogether.

Array Microphones / The more (microphones) the merrier

Published on 2011-04-08 02:00:01

With the help of some digital signal processing, an array of two or more microphones can pick out a speaker from background noise, and even refocus their signals as the speaker moves.

Audium / San Francisco's Theatre of Sound

Published on 2011-04-06 02:00:01

For an experience of sound that's unlike any concert you've ever heard, go to San Francisco's Audium, a theater where listeners are surrounded by speakers and enjoy the performance in total darkness.

Flywheel Batteries / A new spin on energy storage

Published on 2011-04-04 02:00:01

Chemical batteries aren't the only way to store large amounts of electricity. Reduce the friction enough, and a large, heavy, spinning wheel can serve the same purpose. It also lasts a lot longer than batteries.

The Egely Wheel / Vital energy measurement for the masses

Published on 2011-04-01 02:00:01

A small electronic device can supposedly measure your ch'i, or vital force. But is it it a technological marvel, a hoax, or just wishful thinking?

Car Sharing Programs / The stress-free alternative to car ownership

Published on 2011-03-30 02:00:01

Forget carpools and conventional car rental agencies. You can get nearly all the advantages of car ownership without any of the hassles by joining your local car sharing program.

Automatic Transmissions for Bicycles / Reinventing the two-wheeler

Published on 2011-03-28 02:00:01

Automatic transmissions are common on cars, but a similar technology can provide easier pedaling for bicyclists too. Bike manufacturers are beginning to overcome the technical and marketing challenges.

NextBus / Friendlier mass transit through technology

Published on 2011-03-25 03:00:01

Wondering when the next bus or train will arrive? Your cell phone may be able to tell you, thanks to a service called NextBus that tracks vehicles' locations using GPS receivers.

Fortune Cookies / The authentic Japanese-American Chinese treat

Published on 2011-03-23 03:00:01

You can find fortune cookies at any Chinese restaurant in North America, but they're unknown in China. They were actually invented in San Francisco, based on a Japanese treat.

Pastrami / Cure for the common deli

Published on 2011-03-21 03:00:01

The world's first delicatessen came into existence in the late 1800s thanks to a new kind of cured meat known as pastrami. But the exact nature of pastrami is open to interpretation.

Piñatas / History of a breakthrough

Published on 2011-03-18 03:00:01

The piñata may be a staple of children's birthday parties in North America, but it apparently originated in China. Or maybe Africa. Ask Marco Polo.

Modern Mummies / Resurrecting the art of arrested decay

Published on 2011-03-16 03:00:01

Mummification may have gone out with the pharaohs, but a new, modern mummification process aims to restore its popularity. You can even have your pet mummified for eternity.

Demosthenes' Stones / Improving your diction, Athenian style

Published on 2011-03-14 03:00:01

The Greek orator Demosthenes overcame a severe speech impediment by forcing himself to speak with stones in his mouth.

The S Curve / What is wrong with success?

Published on 2011-03-11 02:00:01

After someone acquires a certain level of expertise, further development of a skill seems to drop off dramatically. Can this phenomenon, known as the S Curve, be overcome?

Perpetual Motion Machines / The endless quest for free energy

Published on 2011-03-09 02:00:01

Over the centuries, countless people have tried to create perpetual motion (or over-unity) machines, in defiance of the Laws of Thermodynamics. So far, physics is holding its own.

Propeller Beanies / The story of the geek's icon

Published on 2011-03-07 02:00:01

The little beanies with plastic propellers on top have become iconic (in America, at least) of science fiction fans and techie nerds of all kinds. But the cap's inventor never got the credit he deserved.

The Hurdy-Gurdy / Violin, bagpipes, and kazoo combined

Published on 2011-03-04 02:00:01

A musical instrument that's quite odd by today's standards, the hurdy-gurdy was quite popular for accompanying dancing in the medieval period. And it's making a bit of a comeback.

The Story of Doughnuts / The truth, the hole truth . . .

Published on 2011-03-02 02:00:01

When and how doughnuts were invented (and how they got their name) is the subject of some disagreement. People also disagree about where to get the best doughnuts in San Francisco, but I'm doing my best to answer that question.

Sedona's Energy Vortexes / The world's most popular invisible tourist attraction

Published on 2011-02-28 02:00:01

The town of Sedona, Arizona is best known for several so-called energy vortexes that are supposedly sites of increased energy. They may or may not promote health and spiritual development, but they certainly promote tourism.

The Globe Theatre / Shakespeare's ideal venue, then and now

Published on 2011-02-25 02:00:01

Shakespeare's famous Globe Theatre, originally built in 1599, bares little resemblance to what most people think of as a theater today. A replica, made as historically accurate as possible, was built in London in 1996.

Walloon / Green Bay and the French connection

Published on 2011-02-23 02:00:01

What's the connection between Belgium and Green Bay, Wisconsin? It's not cheese, but a little-known language called Walloon.

Bahasa Indonesia / The complex story of a simple language

Published on 2011-02-21 02:00:01

The official language of Indonesia has been called an artificial language, but that's not quite correct. Nevertheless, it has undergone several significant transformations, some of which were artificially guided.

Linguistic Categories / Women, fire, and dangerous things

Published on 2011-02-18 02:00:01

Most languages have one or more mechanisms of dividing nouns into groups that express meaningful categories for the language's speakers. Some of these groupings yield insights into subtle cultural and mental processes.

Pittsburghese / America's most underappreciated dialect

Published on 2011-02-16 02:00:01

Residents of Pittsburgh, Pennsylvania (and its surrounding area) have their own distinctive dialect of English called Pittsburghese.

Hypercorrection / Taking the rules of language too far

Published on 2011-02-14 02:00:01

When you try so hard to correct a grammatical error that you overcompensate and make another error in the process, you're experiencing the common phenomenon of hypercorrection.

The Klingon Language Institute / The final frontier of linguistic scholarship

Published on 2011-02-11 02:00:01

A linguist developed a complete Klingon language for the Star Trek television shows and movies. Incredibly, a nonprofit scholarly organization exists to promote and study the language. Coming soon: the Bible in Klingon.

Ventless Clothes Dryers / Laundry without the hot air

Published on 2011-02-09 02:00:01

Amazing but true: you can machine-dry clothes without venting hot, moist air (or indeed any air at all). You can even have a combination washing machine and ventless dryer in one. Clever engineering triumphs again.

Silicone Baking Products / The quiet revolution

Published on 2011-02-07 02:00:01

Go into any kitchen store and you'll see an increasing number of products made out of (or coated with) silicone, an amazingly heat-resistant yet pliable substance.

Heat-Resistant Chocolate / Defying the laws of confectionary

Published on 2011-02-04 02:00:01

Milk chocolate melts in your hand, your pocket, or a hot glove compartment. Wouldn't it be great if it didn't? Keeping chocolate from melting when you don't want it to, while maintaining proper texture and taste, is a challenge of food science.

Powder Coating / Paint's shocking competitor

Published on 2011-02-02 02:00:01

The brightly colored surfaces of metal objects in your home or office may not have come from paint, but from powder coating, a process based on technology similar to what a photocopier or laser printer uses.

Tabacón Hot Springs / The relaxing side of the Arenal Volcano

Published on 2011-01-31 02:00:01

You haven't been to a hot spring until you've visited Tabacón, a resort in the shadow of (and heated by) Costa Rica's Arenal Volcano.

Revenge of the Analog Clock / Time for a pie chart

Published on 2011-01-28 02:00:01

Digital clocks and watches enjoyed a surge of popularity for a while, but now analog models are once again more common. It's not just aesthetics; they actually make it much easier to tell time.

The Handshake / Coming to grips with gestures of greeting

Published on 2011-01-26 02:00:01

Of all the ways we might have chosen to greet each other, we decided upon handshakes as the norm. This gesture has an uncertain history, and getting it just right may be harder than you think.

Giving Away the Razor, Selling the Blades / The curious strategy of loss-leader marketing

Published on 2011-01-24 02:00:01

How can companies make money by giving away their products? Loss-leader marketing trades immediate profits for repeat sales over the long run.

The Unknown Woman of the Seine / Breathing new life into a mystery

Published on 2011-01-21 02:00:01

A mask allegedly made from the face of a woman who drowned in Paris near the beginning of the 20th century created intrigue, sparked fashion trends, and influenced the design of first aid training equipment.

The Truth About Bananas / Fingering the world's most popular tropical fruit

Published on 2011-01-19 02:00:01

America's favorite fruit comes from an herb, not a tree. The life cycle of this plant, and the working conditions of the people who harvest its fruit, are among the little-known facts about bananas.

Quantifying Despair and Depression / Keep swimming

Published on 2011-01-17 02:00:01

You may feel more happy or more depressed from one day to the next, but how might one go about measuring a person's level of despair or depression? Several clinical tools attempt to address this tricky question.

The Equation of Time / When what you mean is not apparent

Published on 2011-01-14 02:00:01

Everyone knows that a day has 24 hours, but if you base your measurement on the position of the sun, that figure could vary by as much as 16 minutes over a year. The equation of time compensates for this irregularity.

Scruples and Stones / A pebble for your thoughts

Published on 2011-01-12 02:00:01

The words scruple and stone can both refer to units of measurement, and their metaphorical meanings intersect with those concrete meanings in interesting ways.

Decimal Time / Solutions for people who need 100 hours in a day

Published on 2011-01-10 02:00:01

The division of days into 24 hours and hours into 60 minutes is arbitrary and makes calculation awkward. Why not use a system based on units of 10 and 100? Some people have tried, with lackluster results.

Furlongs Per Fortnight / Mix-and-match units

Published on 2011-01-07 02:00:01

Engineers with a sense of humor use the expression "furlongs per fortnight" when the correct unit of measurement is unclear. But there may be a practical use for this odd unit of measurement, too.

Body-Based Units of Measurement / Size matters in more ways than one

Published on 2011-01-05 02:00:01

Many units of measurement (both historical and modern) derive from the typical size of body parts such as hands, feet, and arms.

Measuring the Speed of Light / Fun with mirrors and math

Published on 2011-01-03 02:00:01

In the mid-1800s, long before lasers, digital computers, or atomic clocks, a French scientist devised a brilliant method for measuring the speed of light using rotating mirrors, some clever geometry, and a bit of math.

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