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Today's Mind-blower
10 Facts About Biological Rhythms

The body clock is a strange and wonderful thing, calibrated to reflect a variety of biological rhythms beating inside you. And scientists are still not sure why it exists.

    • 5 Germs You Really Can Get from a Toilet
      health 5 Germs You Really Can Get from a Toilet

      No one thinks public toilets are altars of tidiness, but are they actually dangerous? The odds of catching something from a public bathroom are low -- but it's possible.

    • 10 Ways 3-D Printing Could Change the World
      computer 10 Ways 3-D Printing Could Change the World

      You might think of 3-D printing as a way to make plastic models and parts, but people are embracing the technology for fashion, food, housing and a host of other things.

    • Do we really swallow spiders in our sleep?
      animals Do we really swallow spiders in our sleep?

      Worried about creepy crawlies entering your mouth while you sleep? Relax -- spiders have no interest in being eaten.

    • 10 Scientific Breakthroughs We Literally Couldn't Live Without
      science 10 Scientific Breakthroughs We Literally Couldn't Live Without

      You might argue we have scientists to thank for our own survival. What breakthroughs have kept the human race from dying out?

    • How Burning Man Works
      adventure How Burning Man Works

      Since 1986, Burners have celebrated radical inclusion and self-expression at a weeklong festival in Nevada's Black Rock Desert. How did Burning Man start, and what does the Man symbolize?

    • How Gold Farming Works
      electronics How Gold Farming Works

      Don't be a n00b — gold farming has nothing to do with actual mining. The practice of selling virtual gold for actual cash might be lucrative, but it's also been accused of creating "virtual sweatshops" in many countries.

    • Does the U.S. military have rules about tattoos?
      science Does the U.S. military have rules about tattoos?

      Tattoos and the military seem to go together. Many U.S. soldiers get ink to commemorate their service or fallen comrades. And the tattooed Navy sailor is part of American folklore. But can a tattoo actually prevent you from serving your country?

    • Did Vikings really have horns on their helmets?
      history Did Vikings really have horns on their helmets?

      You can immediately recognize Viking warriors by their helmets, with impressive horns protruding from either side. Doesn't seem very practical, though.

    • Is a 'dog year' really seven years?
      animals Is a 'dog year' really seven years?

      The old rule of thumb of seven dog years per human year typically makes dogs seem older than they really are. No fear, there's a formula to estimate your dog's age the right way!

    • Is it OK for cats to drink milk?
      animals Is it OK for cats to drink milk?

      Your cat may gaze longingly at your bowl of cereal each morning, but here's why it's not really OK for cats to drink milk.

    • How Vine Works
      computer How Vine Works

      Six seconds isn't much time to convey an idea, so why is Vine, with its microvideo social network model, so captivating?

    • What is the future of robotic surgery?
      health What is the future of robotic surgery?

      Robotic surgery doesn't mean Rosie from "The Jetsons" is going to get it. Instead, these high-tech bots let surgeons make the tiniest, most precise movements to limit tissue damage. But even now, researchers are dreaming up better robot inventions.

    • 10 of the Worst Decisions Ever Made
      history 10 of the Worst Decisions Ever Made

      Everyone makes mistakes, but some lapses in judgment are spectacularly bad. What are some of history's most epic miscalculations?

    • How Transparent Texting Works
      electronics How Transparent Texting Works

      Strolling along with your attention focused on your smartphone screen is a recipe for disaster. Well, there's an app for that.

    • 10 Absolutely Worst Foods to Eat
      science 10 Absolutely Worst Foods to Eat

      We all eat things we probably shouldn't, and that's OK from time to time. But there are some foods that are such nutrition bombs that even occasional indulgence isn't exactly wise.

    • What the Stuff?!: 5 of the Smartest Animals
      shows What the Stuff?!: 5 of the Smartest Animals

      As far as animals go, humans are pretty swell. Our brilliant brains have taken us across the globe and even into space. But we’re not the only nerdy animals on this rock. Here are 5 of the smartest.

    • 10 Really Smart People Who Did Really Dumb Things
      science 10 Really Smart People Who Did Really Dumb Things

      Having a Ph.D., four stars on your general's uniform or a seat in the Oval Office won't necessarily stop you from doing things that make others want to whack you on the head with a "how could you?" Here are 10 people who should've thought twice.

    • 10 Misconceptions About Millennials
      people 10 Misconceptions About Millennials

      Not all millennials see themselves as special snowflakes. In fact, many of the qualities people think are inherent in Generation Y actually aren't. Which misconceptions about millennials are really just slights against youth?

    • Are modern cars vulnerable to hackers?
      auto Are modern cars vulnerable to hackers?

      Thieves and thugs will always find a way to take something they didn't work for. But just how vulnerable are modern automobiles to a high-tech attack?

    • 10 Reasons Not to Go to the ER
      health 10 Reasons Not to Go to the ER

      You cut yourself prepping dinner. It's after business hours. But should you really take that laceration to the emergency room? Maybe not.

    • 10 Science Questions You Should Really Know How to Answer
      science 10 Science Questions You Should Really Know How to Answer

      Why is the sky blue? What's relativity all about? If you're thinking, "something to do with light and physics and stuff," we have some short explanations for you.

    • 10 Superhero Powers of the Animal Kingdom
      animals 10 Superhero Powers of the Animal Kingdom

      Flying and being invisible are NOT the only superpowers. What if you could freeze yourself and then reanimate? What if you could survive space without any help from NASA like tardigrades can? Time to introduce a few new superpowers into your arsenal.

    • 10 Dramatic Acts of Human Kindness
      people 10 Dramatic Acts of Human Kindness

      The news is filled with a never-ending stream of tragedy and cruelty, but also with gestures and acts meant to improve the lives of others -- and the world. Here are 10 of our favorites.

    • 10 Things People Believe About the Illuminati
      people 10 Things People Believe About the Illuminati

      The price of oil, the weather, the United Nations and pop music are all controlled by one malevolent force -- the Illuminati. Or so some people believe. How did an imaginary group get so big?

    • 10 Laundromat Etiquette Rules
      people 10 Laundromat Etiquette Rules

      You toss your clothes and detergent in, let the cycle run and then pop that laundry in the dryer. Easy peasy. But there are some nuances to laundromat manners you may not be privy to.

    • The 10 Most Amazing Parties of All Time
      adventure The 10 Most Amazing Parties of All Time

      Not all parties are as wild as Edward Russell's 1694 bash, where guests took eight days to polish off the cocktail offerings. These 10 fêtes run the gamut of soirée styles, from staid, formal affairs to creative events with unusual themes.

    • 10 'Harmless' Things You Should Really Wash Your Hands After Touching
      science 10 'Harmless' Things You Should Really Wash Your Hands After Touching

      Of course you wash your hands after you use the restroom or work the room at a networking event. But what about after you play beer pong? Or cuddle a duckling?

    • 10 Rules of Gym Etiquette People Are Constantly Ignoring
      people 10 Rules of Gym Etiquette People Are Constantly Ignoring

      Hey, recognize me? I'm the one chatting loudly on my cell phone on the treadmill next to yours. Later on, I'll forget to wipe off the machine when I get off. Yep, I'm the gym hog who needs a refresher course in etiquette.

    • 5 Food Animals That Are Smarter Than Your Pet
      animals 5 Food Animals That Are Smarter Than Your Pet

      Meet the pig: It can employ evasive maneuvers and play video games with joysticks, among other porcine talents. Kind of a whole different take on bacon, isn't it?

    • 10 UAV Jobs of the Future
      money 10 UAV Jobs of the Future

      Although unmanned aerial vehicles (aka drones) were originally developed for military use, civilians have found hundreds of uses for them -- leading to creation of jobs that never existed before. Fancy being a drone farmer?

    • 10 Things That Don’t Disprove Global Warming
      science 10 Things That Don’t Disprove Global Warming

      "It's been so cold this winter -- so much for global warming." Ever heard anyone say that? We explain why cold weather -- and nine other things -- don't disprove global warming.

    • 10 Grocery Store Etiquette Rules
      people 10 Grocery Store Etiquette Rules

      Whether you're there to grab light bulbs or a dinner feast, the grocery store is full of opportunities to get a little lax with your social graces. Here are some guidelines to keep the process running smoothly. What are your grocery rules?

    • 5 Most Stressful Hospital Jobs
      health 5 Most Stressful Hospital Jobs

      Working in health care is inherently stressful, but some jobs have higher rates of worker burnout than others. Would you rather provide nursing care or work in a hospital billing department?

    • 10 Ways Space Is Trying to Kill You
      science 10 Ways Space Is Trying to Kill You

      Those eager beavers who want to sign up for the one-way ticket to Mars had better read this first. You might appreciate how special -- and rare -- life on Earth really is!

    • 10 Urban Sports That Might Get You Arrested
      adventure 10 Urban Sports That Might Get You Arrested

      Strange to think that a sport could actually be illegal -- but it could get you arrested if it involves trespassing, injures others or is just plain crazy. Here are 10 sports that could get you in trouble.

    • 10 IKEA Etiquette Rules
      people 10 IKEA Etiquette Rules

      For the rule-loving (and germaphobic) people among us, IKEA can be a nightmare: Huge crowds, long lines and loud kids can make things seem chaotic. Help bring order to the madness by following our etiquette outline.

    • 10 of the World's Most Touristy Cities
      adventure 10 of the World's Most Touristy Cities

      Some cities just seem to be more "blessed" with expensive attractions, wax museums and fudge shops than others. Here are 10 of the world's finest tourist traps.

    • 10 Completely Unrealistic Moments in Television ERs
      people 10 Completely Unrealistic Moments in Television ERs

      Emergency rooms on TV are fraught with drama and tension. While nonfictional ERs have their share of stressful moments, a lot of the work they do is misrepresented when it's transferred to the entertainment sphere.

    • 10 Places on Earth That Look Completely Alien
      adventure 10 Places on Earth That Look Completely Alien

      Some spots on Earth seem like they're straight out of the Lonely Planet guide to outer space -- NASA even uses them for training. What and where are they?

    • Do rabbits really love carrots?
      animals Do rabbits really love carrots?

      What's up doc? Besides spawning a famous catchphrase, Bugs Bunny may also be behind the well-known bunny-carrot connection! Do rabbits really love carrots?

    • Is the cloud spiral phenomenon real?
      science Is the cloud spiral phenomenon real?

      Admit it: You'd be just a little freaked out if you looked up at the night sky and saw a weird glowing spiral stretching out before you. In 2009, many claimed to witness exactly such a phenomenon, but were they spinning yarns or telling the truth?

    • Can a full coat of body paint kill you?
      people Can a full coat of body paint kill you?

      Body painting, popular with models, artists and cosplayers, is a visually striking medium. But are there hidden dangers? Can head-to-toe body paint actually kill you? Read this to find out if death by paint is real.

    • Does the Parthenon really follow the golden ratio?
      history Does the Parthenon really follow the golden ratio?

      The iconic Greek temple known as the Parthenon is thought to have been built following a mathematical concept called the golden ratio. Was it really?

    • How can a telescope see through time?
      science How can a telescope see through time?

      Light travels pretty rapidly, but when it comes to faraway galaxies, that light takes a while to reach our telescopes. In fact, the light you see might actually be from billions of years ago.

    • What are ley lines?
      science What are ley lines?

      Is the world really connected by an intricate, invisible web of knowledge-expanding energy waves? Sure, it's called the Internet -- and you're channeling it right now! Oh, you were asking about the ley lines? We've got an answer for that too.

    • Are the Ica stones authentic?
      science Are the Ica stones authentic?

      Humans riding dinosaurs: Sounds like a kid's dream come true! History tells us this couldn't possibly have happened, but the Ica stones say otherwise. So is there any truth to these allegedly ancient carvings, or are they just an elaborate hoax?

    • Can humans live forever?
      science Can humans live forever?

      We've been raised with the belief that death is inevitable, so we must consider the legacy of what we'll leave behind. But what if you had unlimited time to pursue your life's work? What if you didn't have to die?

    • Is humid air heavier than dry air?
      science Is humid air heavier than dry air?

      If humid air is just air plus water, then it has to be heavier than dry air, right? Sure, if it was only a matter of simple addition, but molecular physics is a lot like a bouncer at a club: Nothing gets in unless something else goes out.

    • What is ectoplasm?
      science What is ectoplasm?

      Obviously, if we had more evidence of the existence of ghosts, we wouldn't all spend so much time debating the matter. Believers in the supernatural, however, are convinced a substance called "ectoplasm" proves ghosts are real -- but are they right?

    • What if I put sugar in someone's gas tank?
      auto What if I put sugar in someone's gas tank?

      Putting sugar in someone's gas tank has long been rumored to ruin someone's car. But does it really work? What could really disable a car?

    • What does alcohol proof mean?
      health What does alcohol proof mean?

      Alcohol proof is always twice the alcohol percentage, right? Wrong. That depends on where on the globe you happen to be. And that's probably not the only thing you don't know about proof.

    • What is theory of mind?
      people What is theory of mind?

      Infants and toddlers tend to be extremely self-centered. They haven't yet developed the ability to think of anyone but themselves. That changes for most kids at around age 3 or 4, when they develop theory of mind. But what is it?

    • Why do girls wear pink and boys wear blue?
      people Why do girls wear pink and boys wear blue?

      The common practice of dressing boys in blue and girls in pink is rooted in tradition. But is there science and biology in this equation, too?

    • Can you get a glow-in-the-dark tattoo?
      people Can you get a glow-in-the-dark tattoo?

      Tattoos are pretty conspicuous, and most are meant to be. But what if we told you the seemingly clean-cut person next to you has an arm covered with ink, and you just can't see it? Welcome to the world of glow-in-the-dark tattoos.

    • Why are demons blamed for sleep paralysis?
      science Why are demons blamed for sleep paralysis?

      Why does the experience of sleep paralysis often summon explanations of demonic visitations? Visit the place where dreams and reality overlap, and where science and myth attempt to interpret our hallucinations.

    • How long is the longest existing family tree?
      people How long is the longest existing family tree?

      If you can trace your ancestry back more than three generations, you're doing better than many of us. But when you've dived into the murky archives before the 1900s, you will definitely find yourself wondering just how far back you'll be able to go.

    • Why is it rude to stare?
      people Why is it rude to stare?

      In every nation and culture, people stare. And it's universally considered rude behavior, but who made the rule that staring at someone was uncool?

    • Is it bad luck to give knives as a gift?
      people Is it bad luck to give knives as a gift?

      A knife is a timeless and useful gift. Before you give one, however, there's something you need to know: Gifting knives has long been considered bad luck.

    • What is the Baltic Sea anomaly?
      science What is the Baltic Sea anomaly?

      There's no denying it: "Anomaly" is a great word, full of danger and mystery. So when an underwater object is declared a bona fide anomaly, it's no surprise our ears perk up a bit. But is the Baltic Sea anomaly worth the hype or just a big old dud?

    • Storm Pictures
      science Storm Pictures

      Thunderstorms are impressive and destructive elements of nature. This collection of images highlights some of the most spectacular features of storms.

    • Dubai Pictures
      adventure Dubai Pictures

      Dubai has earned a reputation for its booming economy and engineering feats, like man-made islands and the world's tallest buildings. What other spectacles are coming out of this desert city?

    • Creepy Gargoyle Pictures
      science Creepy Gargoyle Pictures

      Gargoyles have a long and fascinating architectural history. But whatever ... they're freakin' creepy.

    • Mysterious Marine Animal Pictures
      animals Mysterious Marine Animal Pictures

      Ah, the secrets of the sea. In this gallery, we'll introduce you to some of the more enigmatic animals that drift in the ocean, swim in the sea or shoot their intestines out of their anus in saltwater. Jump in.

    • Everyday Tech Pictures
      electronics Everyday Tech Pictures

      We often take technology for granted. Learn about some of the incredible technologies that you're using every day.

    • Most Humiliating Political Flubs in History
      people Most Humiliating Political Flubs in History

      Being in the celebrity spotlight can be grueling, but being in the political spotlight is arguably even tougher. It’s one thing when a starlet acts foolishly or loses her decorum, but it’s something else entirely when you’re an official who’s supposed to be leading a nation. Which of these missteps was the worst?

    • National Park Pictures
      adventure National Park Pictures

      Ever since the first national park was established in the United States, they've been a getaway for relaxation and adventure for humans and a safe haven for wildlife. Take a journey through America's national parks.

    • The Greatest Olympians of All Time
      entertainment The Greatest Olympians of All Time

      Their athletic feats are the stuff of legend. Their dedication and fortitude boggle the minds of mere mortals. See the photos and learn the stories of 16 competitors who rose to the podium as they represented their countries in global competition.

    • Classic Muscle Car Pictures
      musclecars Classic Muscle Car Pictures

      See pictures of everyone's favorite fast, powerful, gas-guzzling cars from the '60s and '70s. They may not be eco-friendly, but they sure were fun while they lasted.

    • Giant Movie Monsters on the Rampage
      entertainment Giant Movie Monsters on the Rampage

      Ginormous monsters are a vital part of our cinematic culture. Motion pictures bring the fantastic to life, and what's more fantastic than gargantuan beasts tearing down the city? So let's get to know a few of these Tinseltown titans.

    • Celebrity Fashion Disasters Pictures
      lifestyle Celebrity Fashion Disasters Pictures

      There's not too much we enjoy more than a good old-fashioned celebrity fashion disaster. So for your voyeuristic entertainment, we've rounded up a list of the top 10 most heinous celebrity disasters of all time.

    • Candy Wonderland Pictures
      recipes Candy Wonderland Pictures

      This candy wonderland image gallery will help get the holiday spirit going. Check out these candy wonderland pictures.

    • Protesting Pictures
      people Protesting Pictures

      Protesting is one way some people fight for change. See pictures of protests and learn more about this form of activism.

    • Fall Pictures
      adventure Fall Pictures

      Fall is a time for amazing tree colors and fun activities. Look through this gallery to see beautiful fall pictures and events.

    • Human Senses Pictures
      health Human Senses Pictures

      Your senses help you navigate through the world more than you might realize. And what about ESP? These pictures take you through the world of senses from your nose and the inside of your ear to the exploration of mind reading.

    • American Politics in Souvenirs and Slogans
      people American Politics in Souvenirs and Slogans

      Come convention time, you’ll see attendees sporting head-to-toe political regalia. What’s the history of these tiny statement-makers, and which campaign tchotchkes make plain old buttons look dull?

    • Chocolate Quirks: Unusual Chocolate Products
      science Chocolate Quirks: Unusual Chocolate Products

      Even in its simplest form, chocolate is a pleasure to eat. But these days, there are some truly quirky chocolate products out there that’ll blow your mind -- and your taste buds. Click your way through this chocolaty gallery (and try not to drool too much).

    • X-ray Pictures
      health X-ray Pictures

      Wonder what the inside of your body looks like? Take a look at these pictures to see parts of the body and medical conditions under x-ray.

    • Science and Nature: Fractals
      science Science and Nature: Fractals

      Fractals produce fascinating and intricate designs. Browse through this gallery featuring pictures of a variety of fractals like Mandelbrot and Julia sets, and find out why nature is loaded with fractals.

    • What extinct animal are you?
      animals What extinct animal are you?

      Everyone feels a little lonely sometimes, but do you ever feel like you're the last of your species? Take this quiz to find out what extinct animal you're most like.

    • Music Trivia: Name That Title Track
      entertainment Music Trivia: Name That Title Track

      The title track might not be the most famous song on an album, but these tunes clearly have their own significance. Take our quiz to see how much you know about some of the greatest title tracks in music history.

    • "Everyone Says It So It Must Be True": The Pseudoscience Quiz
      science "Everyone Says It So It Must Be True": The Pseudoscience Quiz

      We have an astonishing capacity to accept scientific-sounding concepts if we hear them repeatedly. Test your ability to differentiate between real science and “common knowledge” falsehoods.

    • Gosh!: Are you an annoying parent?
      health Gosh!: Are you an annoying parent?

      Teenagers dislike a lot of things -- and you can live with that (as long as you're not one of those things). Test your knowledge of the traits teens hate. Maybe, just maybe, you can stay off your adolescent's list of irritants.

    • Are you a bacon sensei?
      recipes Are you a bacon sensei?

      Do you always boast to friends and family that you actually know the most about bacon? Back up your bacon bragging rights by answering these 20 questions about the most delicious porcine treat.

    • Are you a vampire?
      science Are you a vampire?

      Have you been feeling a little off lately? Like maybe something's not quite right? Ordering your steaks extra, extra bloody? If you score above a 15 in this quiz, you might want to avoid holy water and garlicky foods for quite some time, or, you know, an eternity.

    • Are you depressed or just sad?: The Major Depressive Disorder Quiz
      health Are you depressed or just sad?: The Major Depressive Disorder Quiz

      There are a lot of misconceptions regarding sadness and major depressive disorder (MDD). Knowing the differences, causes and treatments can lead to a better quality of life for you or someone you know. So how much do you really understand about the condition?

    • What's your ideal science career?
      money What's your ideal science career?

      If you’re the type who never stopped asking why things work the way they do, a career in science just might be the right choice for you. Take our quiz to discover your niche in the wonderful world of science.

    • Bartending Quiz
      recipes Bartending Quiz

      The best bartenders have an encyclopedic knowledge of cocktails and know how to keep things rolling while letting the liquor flow. Take our quiz to test your knowledge of all things bartending!

    • Fact or Fiction: Hollywood vs. History
      entertainment Fact or Fiction: Hollywood vs. History

      Did you learn most of your history from the silver screen? If so, you might want to fact-check a few things. Test your real history knowledge by separating the real story from cinema inaccuracies.

    • Body Works: Human Emotions Quiz
      science Body Works: Human Emotions Quiz

      How are you feeling today? Are you jumping for joy, or did you wake up on the wrong side of the bed? How much do you know about why it is you feel the way you do?

    • Can you eat it?
      recipes Can you eat it?

      It's pretty obvious whether you can consume most potential food items. Turkey sandwich? Yes. Raw tiger brain? We'll pass, thanks. Take a stab at the dishes in this quiz. Could you eat them and live to tell the tale?

    • Celebrity Challenge: Beatles
      entertainment Celebrity Challenge: Beatles

      The Beatles. The name alone conjures up images of mop tops, yellow submarines, meter maids and walruses. The Fab Four are arguably the most renowned and influential rock band to ever strap on guitars.

    • Frog or Toad? The Commonly Confused Animals Quiz
      animals Frog or Toad? The Commonly Confused Animals Quiz

      You wouldn't be too happy if everyone constantly confused you with your neighbor, so imagine how the poor frog feels when it's constantly referred to as a toad. Think you can distinguish some of the most commonly confused animals?

    • Cities, Interrupted: The Lost Civilizations Quiz
      history Cities, Interrupted: The Lost Civilizations Quiz

      Studying lost civilizations is about more than marveling at pyramids or ancient architecture -- it's an opportunity to learn what kinds of things can bring a once great empire to its knees. How much do you know about some of history's lost cultures?

    • Craziest Hotels Quiz
      adventure Craziest Hotels Quiz

      It may not seem like it when you're driving down the highway and looking at the same boring lodging options, but there are some truly bizarre hotels out there. Kick the standard sleeping options to the curb, and find out how much you know about the world's craziest hotels by taking this quiz.

    • Death by Water: Would you survive?
      health Death by Water: Would you survive?

      A love of water can be deadly. Swimming, boating and even drinking the stuff could lead to your final breath. Thankfully, though, many aquatic deaths are under unusual circumstances. See how well you tread water, next.

    • Everyday Science: Volcano Quiz
      science Everyday Science: Volcano Quiz

      Fiery explosions, boiling lava, hot ash spewing everywhere -- total disaster is probably the first thing that comes to mind when you think "volcano." And, yes, that is certainly a possibility. But do you know what’s really going on when a volcano erupts?

    • Mysterious Bacteria Quiz
      health Mysterious Bacteria Quiz

      E. coli is a common type of bacteria that can lead to serious health issues. Take this quiz to test your bacteria knowledge and learn about healthy forms of bacteria.

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