Today's Mindblower

Will orbital chaos cause Earth, Venus and Mars to collide?

It's not a pleasant thought, is it? But when you mix chaos theory with a few crazy cosmologists, those tidy, predictable orbits start getting lively.

    • How Hackers Work

      computer

      How Hackers Work

      Hackers have been attacking Adobe Acrobat 9 on Windows after a critical security vulnerability was found. Take a look at hacker culture and the various kinds of hackers, some of whom have run afoul of the law.

    • How U.S. Criminal Records Work

      people

      How U.S. Criminal Records Work

      Former Penn State assistant football coach Jerry Sandusky was arrested and jailed Wednesday on new child sex abuse charges. Every arrest and conviction goes on a criminal record, which is stored in massive computer databases that are accessible throughout the world. Once you have a criminal record, will it ever go away?

    • What would it take to reverse global warming?

      science

      What would it take to reverse global warming?

      The two largest producers of carbon dioxide emissions, the U.S. and China, butted heads again this week at the U.N. climate talks. Most scientists agree that human interference in the environment has something to do with the recent trend of rising temperatures on the Earth. What can we do about it?

    • Top 5 Myths About Apple

      electronics

      Top 5 Myths About Apple

      Apple opens its new flagship store in Grand Central Terminal in New York City today. Apple is one of the most successful companies around -- and one of the most mysterious. Here, we consider and debunk five of the biggest myths surrounding this tech giant.

    • Does the Higgs boson exist?

      science

      Does the Higgs boson exist?

      The European Organization for Nuclear Research (CERN) is providing an update on the search for the Higgs boson particle next week on Dec. 13. Rumors say it has been found, but does it even exist?

    • Top 10 Tips for Having a Good Flight

      adventure

      Top 10 Tips for Having a Good Flight

      Some things prevent flying from being fun -- small seats, crowded legroom, snoring seatmates and having to go back to the gate when Alec Baldwin is on your flight and won’t turn off his electronics. See these tips so you can make flying easier for everyone.

    • How Plug-in Hybrid Cars Work

      auto

      How Plug-in Hybrid Cars Work

      GM continues to work with the government to determine the cause of Chevy Volt fires. Learn all about plug-in hybrid cars including their battery packs, which have been under investigation.

    • You Should Know Video: Transplants, Physics and the Moon

      videos

      You Should Know Video: Transplants, Physics and the Moon

      It's no secret that Josh and Chuck are knowledge junkies -- but how much can they learn in 60 seconds? In this playlist, the guys tackle everything from fecal transplants to frame of reference physics and theoretical journeys to the center of the moon.

    • How Lying Works

      people

      How Lying Works

      Former U.S. Governor Rod Blagojevich was sentenced to 14 years in prison on Wednesday after jurors agreed that he lied to the FBI and found him guilty in 18 corruption charges. Do you know how to spot a lie?

    • How Suicide Bombers Work

      science

      How Suicide Bombers Work

      A suicide bombing in Afghanistan on Tuesday killed dozens of people outside a Shiite shrine. Are these bombers strictly a modern phenomenon? How can they be stopped?

    • How Tsunamis Work

      science

      How Tsunamis Work

      Scientists have now determined that the tsunami that struck northern Japan on March 11 was caused by two waves. While it’s difficult to grasp the full effects this natural disaster has had on Japan’s people and culture, we can explain the physical factors that led to it.

    • 5 Things You Can Do to Make Your Car Safer for Driving in Foul Weather

      auto

      5 Things You Can Do to Make Your Car Safer for Driving in Foul Weather

      New Mexico closed highways earlier this week and the entire country of Scotland went on alert after heavy snow and ice covered the regions. Do you know how to prepare yourself (and your car) to meet Mother Nature's fury?

    • How DUI Works

      auto

      How DUI Works

      The Federal Aviation Administration chief resigned on Tuesday after a drunk driving charge. So how do blood alcohol levels, police procedures and DUI punishment work? What can you do to keep your friends and family safe when you've been out drinking?

    • How the Predator UAV Works

      science

      How the Predator UAV Works

      The U.S. military has confirmed that Iran has the missing RQ-170 drone, an unmanned U.S. spy plane. Remotely-operated spy planes exemplify the military trend toward high-tech, low-risk equipment. What can they accomplish in battle?

    • Did the United States put its own citizens in concentration camps during WWII?

      history

      Did the United States put its own citizens in concentration camps during WWII?

      This week, the U.S. remembers the thousands of American sailors and soldiers who were killed during the attack on Pearl Harbor on Dec. 7, 1941. Is it true that some West Coasters were forcibly relocated after the attack?

    • 10 Remarkable Exoplanets

      science

      10 Remarkable Exoplanets

      Astronomers have just announced the existence of an earthlike planet called Kepler 22-b, 600 light-years away from Earth. Take a look at 10 other cool planet discoveries.

    • Should you buy a tablet or an e-reader?

      electronics

      Should you buy a tablet or an e-reader?

      Apple recently reported to JP Morgan analysts that they aren't concerned about iPad competitors such as the Kindle Fire. These days, the latest tablets and e-readers allow you to read books and compute. So which device is best?

    • 5 Myths About Renewable Energy

      science

      5 Myths About Renewable Energy

      The World Petroleum Congress is meeting this week in Doha, Qatar, to address concerns about global warming and the need for cleaner energy. Not everyone is sold on this vision, so a number of myths about renewable energy persist.

    • If the polar ice caps melted, how much would the oceans rise?

      science

      If the polar ice caps melted, how much would the oceans rise?

      Recent studies show that the Arctic ice caps originated when there was a drop in carbon dioxide levels, reinforcing the notion that the current uptick governs global climate change. The polar ice caps continue to shrink due to global warming, but how much would the oceans rise if the ice caps melted completely?

    • Stuff You Should Know Video: Space, Sneezing & Yosemite Sam

      videos

      Stuff You Should Know Video: Space, Sneezing & Yosemite Sam

      Join Josh and Chuck as they research the first animal in space, why people sneeze in bright sunlight and why in tarnation Yosemite Sam keeps popping up on the radio.

    • 10 Real Animals That Seem Make-believe

      animals

      10 Real Animals That Seem Make-believe

      The natural world boasts an incredible diversity of animals, some of which are so colorful and bizarre that they seem made-up. Meet 10 very creative creatures.

    • 10 Tips for More Effective PowerPoint Presentations

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      10 Tips for More Effective PowerPoint Presentations

      The presenter rambling on in front of you is on his 50th slide and shows no signs of slowing. Maybe you should slide him this article on PowerPoint tips before he plows through another 50.

    • Top 10 Weirdest Prescription Drug Side Effects

      health

      Top 10 Weirdest Prescription Drug Side Effects

      Rainbow-colored pee? No, you're not crazy -- it could be a side effect of a medication you're taking. What's the weirdest thing a drug can do?

    • 10 Tips for Saving Money in College

      money

      10 Tips for Saving Money in College

      College can be an expensive endeavor, even with scholarships and other kinds of financial aid. However, there are ways to save. From buying used textbooks to choosing the right campus meal plan, here are a few tips. And don't forget to apply for thos

    • 10 Most Absurd Fad Diets

      health

      10 Most Absurd Fad Diets

      Eat right and exercise: It's no secret that those are the best ways to improve health and shed pounds, but often, people will go to crazy extremes to try to get slim. Would you ingest a parasite to fit into your skinny jeans?

    • 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?

    • 10 Small Space Storage Solutions You Never Knew

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      10 Small Space Storage Solutions You Never Knew

      It's easy for a small living space to feel claustrophobic and cluttered. All you need is a poorly laid out room and too-big furniture. But there are easy, if unconventional, tricks to opening up a small space.

    • 10 Child Stars Who Grew Up Just Fine

      entertainment

      10 Child Stars Who Grew Up Just Fine

      The rises and epic falls of Hollywood kids have been selling tabloids for decades. But not all kids who work as actors flare out -- some go on to lead adult lives sans scandal.

    • 10 Weird Patents That Google Owns

      electronics

      10 Weird Patents That Google Owns

      If you thought Google Glass and driverless cars were out there, then you ain't seen nothing yet. How about a throat tattoo microphone or a keyboard that projects on your hand? These are two other strange patents Google owns. What are some others?

    • 10 Worst Cars of the 20th Century

      auto

      10 Worst Cars of the 20th Century

      The 20th century was a time when cars and new car companies were still trying to find their way. Some were wildly successful; however, there were also some failures -- so, so many failures.

    • 10 Technologies That Help Buildings Resist Earthquakes

      science

      10 Technologies That Help Buildings Resist Earthquakes

      Bend but don't break: That's the idea behind many of these temblor-thwarting technologies. They may even allow a building's inhabitants to walk out unharmed and start picking up the pieces after the earthquake subsides.

    • 10 of the World’s Most Infamous Cults

      people

      10 of the World’s Most Infamous Cults

      Maybe you've heard about drinking the Kool-Aid or listening to The Family Jams -- but what do you really know about some of the world's most infamous cults?

    • Top 10 Everyday Car Technologies That Came From Racing

      auto

      Top 10 Everyday Car Technologies That Came From Racing

      Most race fans dream of slipping behind the wheel of a purebred race car. As it turns out, your own car already has several features that were originally designed for racing. So what are they?

    • Top 10 Ways to Add Value to Your Home

      home

      Top 10 Ways to Add Value to Your Home

      While this may not be the best real estate market around, it is a good time to spend some money on your home to improve its value. But what should you do to get the most return on your investment?

    • 10 Things Men Should Know About Female Hormones

      health

      10 Things Men Should Know About Female Hormones

      Think you know everything about women's hormones just because you know to bring home chocolate during her time of the month? Think again. Check out our list of things that men should know about women's hormones.

    • 10 Heaviest Objects Mankind Has Ever Moved

      science

      10 Heaviest Objects Mankind Has Ever Moved

      It's always been a dilemma for humans: how to move that super-heavy object to a new place. But we always seem to find a way, don't we?

    • 10 Amazing Things People's Brains Have Done

      science

      10 Amazing Things People's Brains Have Done

      The human brain can do some amazing things -- and humans can do amazing things because of it. Here are 10 of the most wondrous and unusual feats ever performed by a person's brain.

    • 10 DIY Wedding Favors Your Guests Will Love

      lifestyle

      10 DIY Wedding Favors Your Guests Will Love

      We've all got a trinket or two from a wedding that we can't bring ourselves to throw away. Wouldn't you love to give your guests favors that they'll actually put to good use? Here are 10 edible and beautiful tokens of appreciation.

    • 10 Best Family Dog Breeds

      animals

      10 Best Family Dog Breeds

      A dog isn't just a pet -- it's a member of the family! Whether your brood is into vegging or hiking, there's a dog to complement your lifestyle and family dynamic.

    • Top 10 Things That Women Invented

      science

      Top 10 Things That Women Invented

      Necessity may be the mother of invention, but many inventors are also mothers. By the end of the 20th century, female inventors held 10 percent of all patents -- a disparity indicating the hurdles women faced in receiving credit for their ideas. The inventions on this list overcame those obstacles.

    • 10 ‘Healthy’ Things That Aren't

      science

      10 ‘Healthy’ Things That Aren't

      If you're like us, you hit the grocery store with good intentions: reasonably healthy foods (that you'll still want to eat). But thanks to everything from marketing to plain old misconceptions, what we think is healthy often isn't.

    • 10 Things to Do Before You List Your House

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      10 Things to Do Before You List Your House

      We wish it were as easy as putting a sign in your front yard and listing the house on the Internet, but selling your home is going to take a little bit more work than that. But you don't have to spend a ton of money to get it ready.

    • 10 Most Popular Cupcake Flavors -- and Why

      recipes

      10 Most Popular Cupcake Flavors -- and Why

      The cupcake is hotter than ever, and it's easy to see why. This individual-sized little cake has a frosted dome, rainbow sprinkles and the kind of personality that fits in at a class party or a wedding. But what are the most popular flavors?

    • Top 10 Simple Ways to Discourage Break-ins

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      Top 10 Simple Ways to Discourage Break-ins

      You don't have to buy an alarm system to prevent burglaries. If your home looks lived-in and if your neighbors seem nosy, you're preventing crime.

    • Top 10 'Star Trek' Technologies That Actually Came True

      electronics

      Top 10 'Star Trek' Technologies That Actually Came True

      The characters in "Star Trek" get to wield all kinds of high-tech gadgetry. Some of these gizmos are purely science fiction. What technologies have actually come to pass?

    • How does a water softener work?

      home

      How does a water softener work?

      Hard water can be a problem because it causes pipes clog and some people just don't like the way it feels. Using a water softener can help solve this problem, but how does it work?

    • Does absinthe really cause hallucinations?

      science

      Does absinthe really cause hallucinations?

      When absinthe was banned in many countries in the early 1900s, it had really fallen out of favor. How does absinthe affect those who drink it?

    • What is déjà vu?

      science

      What is déjà vu?

      Déjà vu is used to describe the feeling that you experienced a situation before. What causes this phenomenon? It’s not a glitch in the matrix, but most of our knowledge on the subject is still theoretical.

    • Can you get stains out of clothes after they've been washed?

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      Can you get stains out of clothes after they've been washed?

      Stain removal can be tricky business, especially if the garment in question has already been laundered. Fortunately, there are still plenty of ways for persistent people to salvage clothing with annoying spots!

    • What exactly is the Higgs boson?

      science

      What exactly is the Higgs boson?

      Who wants to reduce our complicated universe down to its simplest building blocks? A bunch of particle physicists, that's who. Why is the Higgs boson critical to that goal?

    • How does a gas pump know when my tank is full?

      auto

      How does a gas pump know when my tank is full?

      How does a gas pump know when you've got a full tank? Read this simple explanation of the mechanics that cause a gas pump to shut off when the tank is full.

    • Who invented the computer?

      science

      Who invented the computer?

      We'll give you two hints: This person of diverse interests also invented the cowcatcher device for trains, and he held a distinguished mathematics professorship at the University of Cambridge. Any guesses?

    • What causes high tide and low tide? Why are there two tides each day?

      science

      What causes high tide and low tide? Why are there two tides each day?

      If you go to the beach, you can spend hours watching the waterline rise and fall as the day wears on. There are two of these tides each day, but what causes tides and why are there two of them each day? Find out in this article.

    • What does it mean when a barometer is rising or falling?

      science

      What does it mean when a barometer is rising or falling?

      Barometers are used to predict the weather. What exactly does it mean when the weatherman says the barometer is rising or falling?

    • How does the Internet work?

      computer

      How does the Internet work?

      The Internet lets you transfer information around the world in seconds. But the pieces of your file may not all get there the same way. How does all that data get where it's supposed to go without getting lost?

    • How can a corpse be incorruptible?

      people

      How can a corpse be incorruptible?

      Science hasn't yet explained how incorruptibles -- corpses that don't rot -- are preserved. What, if anything, do they have to do with sainthood?

    • How do I know when my car needs a wax job?

      auto

      How do I know when my car needs a wax job?

      Most people take pretty good care of their cars' insides, but they may neglect the outside. Why is it important to wax your car and how often should you do it?

    • How do CDs (certificates of deposit) work?

      money

      How do CDs (certificates of deposit) work?

      Putting your money into a CD can yield higher interest returns than a standard savings account. Do you know the difference between a CD and a savings account? Find out how you can invest your money into a CD money account.

    • How much vitamin D do you get from the sun?

      health

      How much vitamin D do you get from the sun?

      Vitamin D is the only vitamin that your body makes itself. But to do so, it has to be exposed to direct sunlight -- without sunscreen. How much sun should you get to make enough vitamin D?

    • What happens during the dying process?

      health

      What happens during the dying process?

      It's hard to be prepared for death. Too much is unknown about what dying feels like or what happens after we die. However, we do know a bit about the process that occurs in the days and hours leading up to death.

    • How does Groupon work?

      computer

      How does Groupon work?

      If you shop online, you've probably heard of Groupon -- that is, if you haven't used it already. It's been called the fastest-growing company in history, but how does it work?

    • Why do we get headaches?

      health

      Why do we get headaches?

      What exactly is a headache? Find out what causes your head to hurt from different causes.

    • What if an asteroid hit the Earth?

      science

      What if an asteroid hit the Earth?

      There are obvious craters on Earth (and the moon) that show us a long history of large objects hitting the planet. But what if one hit Earth today?

    • What's the difference between gasoline, kerosene, diesel, etc?

      auto

      What's the difference between gasoline, kerosene, diesel, etc?

      Gasoline, kerosene, diesel, etc. all come from crude oil, but what makes them different? Read on to learn about their differences.

    • How long do tie rods last?

      auto

      How long do tie rods last?

      Your car's tie rods don't go bad because they were built on a specific date and their time has merely expired -- tie rods go bad due to wear and tear. But how long will a set of tie rods typically last?

    • Does drinking ice water burn calories?

      health

      Does drinking ice water burn calories?

      Heating things up burns calories -- that's a scientific fact. But can drinking ice water really help you burn calories?

    • When will we run out of oil, and what happens then?

      science

      When will we run out of oil, and what happens then?

      The global oil supply can't meet the demand forever. Will the last drops of oil lead to widespread anarchy, the end of globalization and the relentless exploitation of previously protected drilling sites?

    • Can you fight allergies with local honey?

      health

      Can you fight allergies with local honey?

      Staving off seasonal sniffles with hot tea might be more effective than you realize, especially if you drizzle some honey in your cup. At least one study has shown that honey combats allergies.

    • In a kitchen oven what is the difference between the bake setting and the broil setting?

      recipes

      In a kitchen oven what is the difference between the bake setting and the broil setting?

      Baking and broiling are completely different ways to cook food, but how? Check out this article to learn what baking and broiling mean and what you use each for.

    • What vitamins stop you from being cold all the time?

      health

      What vitamins stop you from being cold all the time?

      Do you run a space heater in your office, even in August? Can you not warm up no matter how many layers you wear? The culprit could be a vitamin deficiency.

    • King Arthur Pictures

      history

      King Arthur Pictures

      King Arthur pictures at HowStuffWorks show illustrations and historical depictions of King Arthur and Camelot. Take a look at pictures of King Arthur.

    • Superhero Pictures

      entertainment

      Superhero Pictures

      Superheroes, such as Spider-Man, Iron Man, Batman and Hellboy have all helped shape the comic book universe. This gallery features images of these and other popular superheroes.

    • Transmission Pictures

      auto

      Transmission Pictures

      Manual, automatic, sequential, dual-clutch -- these are just a sample of what you'll see in this image gallery. Check out pictures of all types of transmissions right here.

    • Cell Phone Tower Pictures

      electronics

      Cell Phone Tower Pictures

      A cell-phone tower is typically a steel pole or lattice structure that rises hundreds of feet into the air. Take a look at these pictures to learn more how cell phone towers work.

    • Step-by-step Guide to Building a Barbecue Pit

      recipes

      Step-by-step Guide to Building a Barbecue Pit

      Have you ever wanted to build your own barbeque pit? These building a barbecue pit pictures will show you the steps for constructing a barbecue pit.

    • Lamborghini Pictures

      auto

      Lamborghini Pictures

      Our Lamborghini image gallery showcases some of Lamborghini's most amazing car line-ups. Check out these pictures of Lamborghini's fastest and most exotic cars in this image gallery.

    • Diesel Engine Pictures

      auto

      Diesel Engine Pictures

      When you hear the word "diesel" you probably imagine something along the lines of a Mack truck. But what do powerful diesel engines actually look like? Check out this image gallery to see the cutting-edge diesel engines in development today.

    • Tree Pictures

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      Tree Pictures

      These tree pictures will allow you to stroll through the world of walnuts, maples, redwoods and more.

    • Turbocharger Pictures

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      Turbocharger Pictures

      Turbochargers increase engine performance without adding much weight. Check out this image gallery to see pictures of how they do it.

    • Popular Web Site Pictures

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      Popular Web Site Pictures

      Sure, you consider yourself the king of the Interwebs, but we bet you aren’t familiar with all of the sites that made our gallery. Or are you? Guess there's only one way to find out.

    • Image Gallery: Incredible Homes of the Future

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      Image Gallery: Incredible Homes of the Future

      Houses today are built by construction crews and can take months. In the future, houses could be built in a day by robotic technology. Check out our Incredible Homes of the Future pictures!

    • Alternative Fuel Vehicle Pictures

      auto

      Alternative Fuel Vehicle Pictures

      From electricity to saltwater to air, these vehicles run on all kinds of things you'd never imagine as fuel. What might power your car in the near future?

    • Boxed Food Pictures

      recipes

      Boxed Food Pictures

      How many famous prepackaged foods do you consume in a day? Spam, Twinkies and Wheaties are just a few of our favorites. Check out these pictures of delicious boxed foods.

    • UFO Pictures

      science

      UFO Pictures

      Do you believe in aliens? If you do, you certainly aren't alone. Stories of flying saucers abducting people and planes have existed since the dawn of flight. See whether you think these pictures scream Photoshop or for real.

    • Men's Health Pictures

      health

      Men's Health Pictures

      Take a look at men's health pictures and get health tips for men of all ages. Learn how to stay fit, healthy and active with men's health pictures.

    • Home Design Pictures

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      Home Design Pictures

      Home design is as varied as the people who come up with the blueprints. From the zeroHouse to houseboats, dive into the exhilarating topic of home design in this image gallery.

    • Classic Toys & Games

      entertainment

      Classic Toys & Games

      The Slinky and Play-Doh have been popular with children generation after generation. This collection of pictures shows these and other popular children's toys throughout the years.

    • Brain Pictures

      health

      Brain Pictures

      What does your brain really look like? It depends on how it's imaged. Take a look at all the different ways we can view the human brain.

    • Skydiving Pictures

      adventure

      Skydiving Pictures

      Who would jump out of a plane intentionally? Hundreds of thousands of people, and they do it millions of times every year. See what it's like to be at gravity's mercy, with only a sheet of nylon to save you.

    • Annual Flowers Image Gallery

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      Annual Flowers Image Gallery

      Annuals are primed to germinate quickly when conditions are right, grow speedily, and then make loads of flowers, fruits, roots and seeds. Learn all about annual flowers by checking out this annual flower pictures image gallery. You may get some ideas.

    • Foods for Beautiful Skin Pictures

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      Foods for Beautiful Skin Pictures

      What you eat can make a big difference in your health and appearance. See these pictures to learn about foods that are great for your skin.

    • Beijing Pictures

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      Beijing Pictures

      China's capital city, Beijing's famous sites blend the ancient with the modern. See some of Beijing's most scenic and fascinating features.

    • Essential Gadget Pictures

      electronics

      Essential Gadget Pictures

      Do you have a smartphone? How about a digital camera? A portable music player? We bet you'll be surprised by how many of these 'essential' gadgets you actually own. Take a look and see whether yours made the list, or if we omitted any of your favorites.

    • Top 10 Breakfasts for Beautiful Skin

      health

      Top 10 Breakfasts for Beautiful Skin

      Breakfasts foods can be great for your skin. They're delicious and rich in wrinkle-fighting nutrients. Whip up these AM foods for healthy skin.

    • Laptop Pictures

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      Laptop Pictures

      Whether you are shopping for a new laptop or just curious about the latest technologies on the market, take a look at our image gallery.

    • Electronic Cigarettes: Fact or Fiction

      health

      Electronic Cigarettes: Fact or Fiction

      The electronic cigarette is gaining popularity and generating controversy around the world. If you're unfamiliar with the device, or just want to learn more about smokeless cigarettes, brush up on your "e-cig" knowledge with this quiz.

    • Do you know how to get rid of acne?

      health

      Do you know how to get rid of acne?

      You probably don't think about acne until it demands your attention in the form of a bright-red outbreak that can't be avoided. Plan now, and discover the best ways to combat this common skin problem.

    • Are You Ready for the Zombie Apocalypse?

      science

      Are You Ready for the Zombie Apocalypse?

      The zombie apocalypse might not be upon us just yet, but it's probably a good idea to be prepared. See if you're ready to face the living dead by trying your hand at this quiz.

    • The Most Embarrassing Moments in the History of Science

      science

      The Most Embarrassing Moments in the History of Science

      What? Scientists get things wrong? We know. It’s shocking to hear, but science isn’t always an exact science. Mistakes do happen -- and they often lead to great scientific discoveries. So, grab your safety glasses and see if you can identify the most embarrassing scientific moments ever.

    • What jobs have the best and worst pay?

      money

      What jobs have the best and worst pay?

      It's pretty clear that a doctor makes more money than a fast-food worker. But does a surgeon bring home more bucks than an anesthesiologist? It can't hurt to find out -- and it might even boost your salary savvy.

    • The Ultimate First Aid Quiz

      health

      The Ultimate First Aid Quiz

      Quick -- do you know how to perform CPR? Help someone who has just fainted? Get an insect out of a kid's ear? No? Well, read on. When you're done with this quiz, you'll feel a lot more confident in emergency first-aid situations.

    • The Ultimate Viagra Quiz

      health

      The Ultimate Viagra Quiz

      Lots of rumors go around about Viagra, but what does this medicine actually do inside the body? Take the Viagra Quiz to see what you know about that little blue pill.

    • The Ultimate Auto Junkyard Quiz

      auto

      The Ultimate Auto Junkyard Quiz

      If you're in the auto resale or repair business or have scoured shops for project car parts, you probably already know that the junkyard of the 21st century can be a wired, high-tech and global operation. If it's been awhile, if ever, since you've roamed through aisles and piles of castoff cars and parts, maybe you'll find a surprise or two when you test your knowledge of salvage, wreckage and junk, online and in person.

    • The Ultimate Replace or Repair Washing Machine Quiz

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      The Ultimate Replace or Repair Washing Machine Quiz

      Why is it that your washing machine seems to malfunction at the worst possible time? When that happens, should you repair or replace it?

    • The Fastest Quiz You'll Ever Take

      science

      The Fastest Quiz You'll Ever Take

      Make haste, poky person! Take this quiz to test your knowledge of the speediest stuff in the universe.

    • Tech Talk: Router Quiz

      computer

      Tech Talk: Router Quiz

      If you're reading these words, you've benefited from the operations of a router -- probably several in fact. Learn more about these mysterious mechanical manipulators that control network navigation by taking this quiz.

    • Clicking and Picking: The 'Minecraft' Quiz

      electronics

      Clicking and Picking: The 'Minecraft' Quiz

      Punching trees is an easy way to begin, but to survive long term in 'Minecraft' you'll have to handle everything from starvation to skeletons to silverfish. Do you know your planks from your pistons and your ghasts from your golems?

    • The Ultimate Basic Plumbing Quiz

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      The Ultimate Basic Plumbing Quiz

      Something we all tend to take for granted at home is the plumbing system. Although it is usually reliable, problems can occur. Take this quiz and see how you can repair some of the common problems.

    • The Ultimate Room Air Conditioner Repair Quiz

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      The Ultimate Room Air Conditioner Repair Quiz

      Maintain your room air conditioner to get maximum cooling during the hot, steamy months of summer. Understanding the operation of a room air conditioner will help you stay cool. Take this quiz to see how cool it can be to know how to repair a room air conditioner.

    • Food Fun: Fast Food Quiz

      recipes

      Food Fun: Fast Food Quiz

      You've probably been living under a rock if you haven't realized how unhealthy fast food can be, but do you know exactly how many calories were in that Double Six Dollar Burger you just ate? Find out that number and lots more in our fast food quiz.

    • Fix it or Ditch it: Is it Time to Replace Your Ride?

      auto

      Fix it or Ditch it: Is it Time to Replace Your Ride?

      Is it worth putting up with the occasional big repair bill and less-than-perfect-paint on your old car to avoid a new-car payment for the next several years? This quiz might help you make a decision -- finally.

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      health

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      science

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      entertainment

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      health

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      science

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      home

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      electronics

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      health

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      5 Things About Your Dog You Didn't Necessarily Know

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      shows

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      How Do Tides Work?

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      shows

      René Laennec and the Invention of the Stethoscope

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      Could Twitter Crash the Stock Market?

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      What's the matter with boobs?

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      shows

      Giant Oarfish, Oh My!

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      shows

      Saving Money: Is There Such a Thing as a Free Lunch?

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      shows

      Money: Men vs. Women

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      Solar Sails: Come Fly the Friendly Universe

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      Are long-distance relationships healthy?

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      Naked and Afraid

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      The Science of Showing Off

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      Why are breasts attractive?

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      shows

      What Are Hot Dogs Made From?

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      shows

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Stuff You Should Watch

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Fact or Fiction: Apple
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Apple founders Steve Jobs and Steve Wozniak met at summer camp when they were teenagers.

Stuff ... Illustrated

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Did you know: Maine is the only state that shares a border with only one other state -- New Hampshire. Another random fact

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