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.

    • Top 10 Mind-bending Strategy Games

      entertainment

      Top 10 Mind-bending Strategy Games

      Some of the best strategy games -- those that require thinking rather than luck or physical ability -- have been around for centuries, while others have been released in the past decade. Which ones stand out from the pack?

    • 10 Great iPhone Apps

      electronics

      10 Great iPhone Apps

      It wasn't so long ago that Apple sold its one billionth iPhone application. What are some of the best applications that run on Apple's smartphone?

    • 10 Aviation Innovations We'd Be Stuck on the Ground Without

      science

      10 Aviation Innovations We'd Be Stuck on the Ground Without

      In the world of flight, it's a fine line between flying high and falling fast. Can you name 10 of the innovations that keep planes and their passengers airborne?

    • 10 People You Probably Didn’t Know Were Black

      people

      10 People You Probably Didn’t Know Were Black

      What do Alexandre Dumas, Pete Wentz and Alexander Pushkin have in common? We're not talking about literary talents -- they're all people whose African ancestry is not well-known. Who else is on the list?

    • 10 Differences Between Macs and PCs

      computer

      10 Differences Between Macs and PCs

      Are you a Mac or a PC? Or, are you wondering what the difference is? We've broken down these computers to reveal their strengths and weaknesses.

    • 10 Notorious Motorcycle Gangs

      auto

      10 Notorious Motorcycle Gangs

      Motorcycle gangs have been around for more than 50 years. But only about 1 percent of them are considered criminal and dangerous in the eyes of the law. Say hello to the Hells Angels, and nine other motorcycle posses.

    • 10 Insane Disguises That Actually Worked

      science

      10 Insane Disguises That Actually Worked

      We're not talking about one of those laughable get-ups that celebs don when they want to go incognito for a latte. Nope, we're talking elaborate disguises -- from operatic to scientific.

    • 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?

    • Top 10 Most Poisonous Plants

      adventure

      Top 10 Most Poisonous Plants

      If you swallow these plants, you could wind up with stomach convulsions, blurred vision, amnesia -- you could even die. What shouldn't you taste on your next hike?

    • 5 Countries That Ditched Their Military Forces

      science

      5 Countries That Ditched Their Military Forces

      As Benjamin Franklin once quipped: "There never was a good war or a bad peace." That's why these five countries have gotten out of the military business entirely.

    • 10 Ways to Make Extra Money from Home

      money

      10 Ways to Make Extra Money from Home

      Who couldn't use a little extra cash at some point? You may not have the time to go out and hit the pavement in search of a second job, but you could use the skills you have to get the dough you need.

    • 10 Scientific Laws and Theories You Really Should Know

      science

      10 Scientific Laws and Theories You Really Should Know

      Even if you don't find yourself, say, operating a scanning electron microscope all that frequently, you might want to brush up on these 10 scientific laws and theories. After all, they're some of our best tools for describing how the universe works.

    • 5 Photography Techniques Everyone Should Know

      electronics

      5 Photography Techniques Everyone Should Know

      These days, digital cameras allow amateurs to produce stunning photos worthy of the pros. But it takes more than a fancy camera to create a great photograph. What are some photography techniques everyone should know?

    • 10 Evil Robots Bent on Destroying Humanity

      science

      10 Evil Robots Bent on Destroying Humanity

      "Hahaha ... we've come to destroy your world!" Or so it must read in the chapter of the "Evil Robot Handbook" on what to say when you first encounter humans. Here are 10 robots you really don't want to mess with.

    • 10 Common Sayings You're Probably Saying Wrong

      people

      10 Common Sayings You're Probably Saying Wrong

      Maybe you could care less about grammar. After all, it’s a doggy-dog world, and you’re OK as long as people know what you mean, right?

    • 10 Best Vacations You'll Never Get to Take

      adventure

      10 Best Vacations You'll Never Get to Take

      There are exotic travel locales all over the world, but there’s no guarantee they’ll stick around. It’s too late to hit these 10 destinations. They've imploded, sunk and otherwise crumbled into oblivion, so why don't you read about them instead?

    • 10 Restaurant Chains That Flopped

      money

      10 Restaurant Chains That Flopped

      If you're hungry for a Lums steamed hotdog or some Chi-Chi's nachos, too bad. Those chains no longer exist. Maybe that's bound to happen when, say, two guys from Minnesota with Scottish-sounding names try to open up a Mexican restaurant chain?

    • Top 10 Countries the U.S. Owes Money To

      people

      Top 10 Countries the U.S. Owes Money To

      The United States spends a huge chunk of its national paycheck on debt obligations. Where is all that money going?

    • 10 Careers for People Who Love to Travel

      money

      10 Careers for People Who Love to Travel

      Some people like to stay in. Others want to get away every chance they get -- if they can afford it. What if you could travel the world and get paid for it? Sound too good to be true? Here are 10 careers designed to satisfy anyone's wanderlust.

    • 10 Recession-proof Businesses

      money

      10 Recession-proof Businesses

      During an economic downturn, job seekers look for businesses that are likely to weather the storm. But is any business truly recession-proof?

    • 10 Gadgets That Will Make Dad's Day

      electronics

      10 Gadgets That Will Make Dad's Day

      Finding a gift for the dad who has everything can seem like a challenge. But with new technology constantly on the march, there are always plenty of possibilities for gadget-loving papas. Here are some of our very best tech gift ideas for Dad's special day.

    • 10 Types of Computers

      computer

      10 Types of Computers

      It may sound silly, but there really are different types of computers. They're super, wearable and, of course, personal computers. That's three. Can you name the other seven?

    • 10 Historically Inaccurate Movies

      history

      10 Historically Inaccurate Movies

      These films look like blooper reels when you compare them to history books. From anachronisms to flat-out lies, creative license reigns in this list.

    • 10 Worst Computer Viruses of All Time

      computer

      10 Worst Computer Viruses of All Time

      Most computer-savvy people know about viruses and how to prevent an infection. But what are some of the most destructive viruses of all time, the record-smasher server-crashers?

    • 10 Oddball Questions Scientists Have Genuinely Tried to Answer

      science

      10 Oddball Questions Scientists Have Genuinely Tried to Answer

      On its good days, science is incredible and enlightening. On its bad days, science can be anywhere from gross to downright bizarre. What are some of science's craziest questions? (And why did anyone want to answer them?)

    • The World's Most Beautiful Skylines

      adventure

      The World's Most Beautiful Skylines

      Can the ultra-modern skyscrapers, congested roadways and bright lights characteristic of today's concrete jungles be attractive? Absolutely! See some of the most beautiful skylines the modern world has to offer.

    • Star Wars Pictures

      entertainment

      Star Wars Pictures

      Star Wars' is one of the most successful movie franchises in cinema history. Follow the history of 'Star Wars' in this collection of images. Mind if we come along, too?

    • The Last Frontier: Alaska

      adventure

      The Last Frontier: Alaska

      Alaska's name comes from the Aleut word for "Great Land" -- a fitting description for this land of dramatic mountains, rivers, and glaciers. What is it like on America's Last Frontier?

    • Bill Gates Pictures

      computer

      Bill Gates Pictures

      Former Microsoft CEO Bill Gates has had a successful career – to put it mildly. He’s also had all sorts of adventures along the way, like jamming out with Slash during a session of Guitar Hero. Keep up with the mastermind in this image gallery.

    • A Fiery Final Flight: Hindenburg Disaster Pictures

      history

      A Fiery Final Flight: Hindenburg Disaster Pictures

      On May 6, 1937, the Hindenburg, the largest airship ever built, crashed and burned in Lakehurst, N.J. Thirty-six people were killed, including one person on the ground.

    • Exotic Car Pictures

      auto

      Exotic Car Pictures

      This image gallery features some of the rarest, most expensive cars from makers like Ferrari, Lamborghini and Porsche. Pore over these beautiful cars and see the amazing features and amenities they offer. You can even pick the one you'll buy -- when you win the lottery.

    • Constellation Pictures

      science

      Constellation Pictures

      As every fledgling and seasoned astronomer knows, groups of stars that form some sort of arrangement are known as constellations. Peer at some of the most famous constellations that humans use to navigate, divine the future and tell stories.

    • Computer Networking Pictures

      computer

      Computer Networking Pictures

      The Internet is in a constant state of evolution, and the components involved in that state of perpetual progress are always evolving as well. See all the pieces that have worked together to form computer networks through the years.

    • Strange Tourist Attractions

      adventure

      Strange Tourist Attractions

      Have you ever seen the world's largest artichoke? What about Paul Bunyan's girlfriend? Or the Fremont Troll? Check out our pictures of gigantic, one-of-a-kind and just plain unusual tourist attractions.

    • Nazca Lines Pictures

      history

      Nazca Lines Pictures

      Southeast of Lima, Peru, between the Andes Mountains and the Pacific Ocean, are lines etched into the desert. See the Nazca lines in this gallery.

    • Plug-in Hybrid Pictures

      auto

      Plug-in Hybrid Pictures

      Plug-in hybrids are a unique breed of hybrid vehicle. Take a look at several different makes and models in this image gallery.

    • Inside the Nintendo 3DS

      electronics

      Inside the Nintendo 3DS

      The Nintendo 3DS is a hand-held gaming device that incorporates 3-D graphics without requiring special glasses. We've taken apart one to show you what's inside this game system.

    • Volcanoes: Spewing Lava All Over the Countryside

      science

      Volcanoes: Spewing Lava All Over the Countryside

      Volcanoes are majestic -- and deadly -- geological formations. See pictures of the world's most incredible volcanoes and the damage they can cause.

    • Future Sports Car Pictures

      auto

      Future Sports Car Pictures

      Want to see the sleek, high-horsepower vehicles you have to look forward to? Take a look at pictures of future sports cars.

    • 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.

    • 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?

    • All About Death

      science

      All About Death

      The saying goes that nothing in life is certain except for death and taxes. What do you know about death? Explore different types of burials and learn more about mortality.

    • Interactive Gallery: How to Build a Deck

      home

      Interactive Gallery: How to Build a Deck

      You want a place to kick back on a warm night and hang out with friends and family. A deck is happy to serve this purpose. We’ll help you to get your new outdoor space built in no time.

    • Home Design Pictures

      home

      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.

    • Interactive Gallery: How to Build a Dog House

      home

      Interactive Gallery: How to Build a Dog House

      Want to show your pooch some love by giving him a shady respite from outdoor romps? Check out our interactive gallery for tips on assembling a doggie dream house.

    • Diamond Pictures

      science

      Diamond Pictures

      Diamonds are some of the most brilliant and expensive natural features Earth has to offer. This collection of images displays diamonds in all their uncut and polished shapes and sizes. Obligatory pictures of very large diamonds are included of course.

    • Timeline of Sex Pictures

      health

      Timeline of Sex Pictures

      The how-tos of sex haven't changed much over the ages, but our understanding of what's actually happening (and why) took off during the Renaissance. How have humanity's thoughts and beliefs about sex evolved throughout history?

    • Truck Pictures

      auto

      Truck Pictures

      Truck owners can list countless reasons for their reliance on their truck. Peruse this image gallery and you'll see some of the coolest models out there, including classic models and cutting-edge concepts.

    • Washington, D.C. Pictures

      adventure

      Washington, D.C. Pictures

      Washington, D.C. has more to offer than just politics-as-usual. It's been a national cultural center for as long as it's been the capital. Take a look at the many museums and attractions of Washington, D.C.

    • Batman Pictures

      entertainment

      Batman Pictures

      Batman has become one of DC Comics' greatest crime-fighting superheroes. With this picture gallery, you can follow the evolution of the Dark Knight.

    • Make It Count: Are You a Math Game Maven?

      entertainment

      Make It Count: Are You a Math Game Maven?

      Math games like mancala require nimble thinking and a feel for numbers. See how much you know about them and their long history by giving this quiz a try.

    • Tag Team: Jobs and Macs versus Gates and Windows PCs

      computer

      Tag Team: Jobs and Macs versus Gates and Windows PCs

      Are you a Microsoft devotee or an Apple fan? How much do you know about the two companies and their operating systems? Find out in our quiz!

    • Internet Myth, Internet Truth

      electronics

      Internet Myth, Internet Truth

      From Big Brother security myths to the fabrication of what the Internet actually is, cyberspace is full of fictions of its own. Can you call a myth's bluff? Test your knowledge on what's real and what's not in the globe's largest electronic world.

    • Is That Legal?

      people

      Is That Legal?

      Do you follow the straight and narrow, or are you known for breaking all the rules? However you choose to live your life, it still pays to know the law. Of course, this quickly gets complicated since anywhere you might live has its own unique set of laws.

    • Solve This! The Sliding Puzzle Quiz

      entertainment

      Solve This! The Sliding Puzzle Quiz

      They're addictive, engrossing and maddening. Sliders have been around for well over a century, but you still may have a lot to learn about these braintwisters.

    • Who Said It? The Wrong Quote Quiz

      people

      Who Said It? The Wrong Quote Quiz

      Wasn't it P.T. Barnum who said, "There's a sucker born every minute?" Maybe, maybe not. Take our quiz to find out the real geniuses behind these well-known quotes -- and you won't be taken for a sucker!

    • Wild World: Biological and Chemical Warfare Quiz

      science

      Wild World: Biological and Chemical Warfare Quiz

      When did countries start using lethal chemical concoctions and hazardous viruses, bacteria and toxins as weapons? Where do they come from? You're about to enter the world of biological and chemical warfare.

    • The Master of Muppets: Jim Henson Quiz

      entertainment

      The Master of Muppets: Jim Henson Quiz

      Even if you’re a die-hard fan of “Sesame Street” and “The Muppet Show,” you can’t possibly know all there is to know about Jim Henson and his work … or can you? Take the challenge and find out!

    • Mac, ENIAC or UNIVAC: The Computer History Quiz

      computer

      Mac, ENIAC or UNIVAC: The Computer History Quiz

      Computers are so much a part of our daily lives that it's sometimes hard to believe that only 60 years ago, they were rare, massive machines that required 10 men to run. How much do you know about the history of computing?

    • Car Smarts: Diesel

      auto

      Car Smarts: Diesel

      While diesel earned itself a bad reputation for spewing soot in the early days, improvements have made it much cleaner. Test your knowledge of all things diesel with this quiz.

    • Could you build your own house?

      home

      Could you build your own house?

      As the saying goes, home is where the heart is. But just how does one go about building a home in the first place? Find out some fun facts about this detailed process by taking the quiz.

    • Fact or Fiction: Google

      money

      Fact or Fiction: Google

      Sometimes it feels like Google is taking over the world. And rumors are always swirling about the next new Google development. Do you know which ones are true?

    • Stuff You Should Know's First-ever Crowd-sourced Quiz

      shows

      Stuff You Should Know's First-ever Crowd-sourced Quiz

      Josh and Chuck know a lot of trivia gleaned from past Stuff You Should Know episodes, but so do their listeners. To give the fans a shot to prove their know-how, we've compiled this quiz made up entirely of questions posed by @SYSKPodcast followers on Twitter. Good luck, pal!

    • Grammar Quiz: Do You Know Your Commas?

      people

      Grammar Quiz: Do You Know Your Commas?

      Most of us think we know when to use commas and when to leave them out. We went to elementary school, after all. Still, many of us get it wrong from time to time ... do you?

    • Group X or Group Sex: What defines asexuality?

      health

      Group X or Group Sex: What defines asexuality?

      Although it might be hard to perceive of sex being a moot point, a mere mechanical operation meant for reproduction, self-identified asexuals assure that it's a reality. Test your knowledge of life sans sex with this asexuality quiz.

    • The Ultimate Kissing Quiz

      people

      The Ultimate Kissing Quiz

      It can be a sign of love, grief or respect worldwide. Kissing is a natural act that gives millions of people physical and psychological satisfaction, but where did it originate? Why does it make us feel good?

    • Zap Thy Neighbor: A Sci-fi Gadgets Quiz

      electronics

      Zap Thy Neighbor: A Sci-fi Gadgets Quiz

      Are you a science fiction fan? Do you know where your towel is? Can you make the Kessel Run in less than 12 parsecs? Strap on your jet pack and grab your ray gun, because it's time to see how much you really know about science fiction gadgets.

    • TV Talk: Catchphrase Quiz

      people

      TV Talk: Catchphrase Quiz

      "Holy catchphrase, Batman." Our language is peppered with famous buzzwords and catchphrases we've picked up from television. See if you can match those words or phrases with the right show or character in our TV Talk quiz. If you can't, just fuggedaboutit.

    • Level Up! Video Game Myths Quiz

      electronics

      Level Up! Video Game Myths Quiz

      Are you a player? Have you been there, done that, completed every quest and leveled all the way up? Then get ready to face the myths and rumors of the video game world to see how much you really know. Game on!

    • Mind Games: Play With Your Memory

      entertainment

      Mind Games: Play With Your Memory

      The best thing you can do to keep your memory strong is to exercise it regularly, taking care to vary your focus on different kinds of memory to stay brain fit. In this quiz, we'll test your knowledge of the games, facts and possible feats of human memory.

    • Fact or Fiction: Axis & Allies

      entertainment

      Fact or Fiction: Axis & Allies

      Axis & Allies is a classic board game that lets you replay the battles of World War II on your dining room table. You might even change history.

    • Handyman or Hapless? Do You Know What Tool to Use?

      home

      Handyman or Hapless? Do You Know What Tool to Use?

      What tools will get your motor running, get that hole in your wall spackled, or help you fix a leaky pipe? Take this quiz to see if you are a tool-time know-it-all.

    • Dollars and Sense: Do You Know How to Make Money?

      money

      Dollars and Sense: Do You Know How to Make Money?

      Everybody wants more money, but few of us know the most efficient and effective ways to get more green in the bank. See if you have what it takes to be rich (or at least pass this quiz).

    • Quiz: How much do you know about human trafficking?

      people

      Quiz: How much do you know about human trafficking?

      Men, women and children around the world have become the victims of human trafficking. They're forced to labor in sweatshops, mines, fields or homes, or they're pushed into prostitution on the street and in brothels. Are you informed about this terrible crime?

    • Color Match

      entertainment

      Color Match

      Put on your sweatbands and get ready to train your brain! Improve your concentration by matching words and colors in the Color Match game.

    • Science Puzzles

      science

      Science Puzzles

      From beneath the Earth's crust to the farthest reaches of outer space, explore your world as you piece together these science puzzles.

    • Mahjongg

      games

      Mahjongg

      The challenge in Mahjongg online is finding all the matching tiles while working your way through the pile quick as a wink. Can you take on the challenge of the tiles?

    • Lost in Migration

      entertainment

      Lost in Migration

      Can you keep up with the flock? Do you remember in which direction it was heading? Exercise your brain and your attention span with Lost in Migration.

    • Money Puzzles

      money

      Money Puzzles

      Thinking about business and money may not always be fun and relaxing, but these puzzles are sure to provide a nice distraction from the stress of your economic woes. How quickly can you piece together these money puzzles?

    • Currency Puzzles

      money

      Currency Puzzles

      You're great at spending it. Now let's see how expert you are turning all these puzzle pieces into a pile of cash. Ready, set, windfall!

    • Geography Puzzles

      geography

      Geography Puzzles

      From raging rivers to towering mountains, the smallest countries to the biggest civilizations, explore our world by trying your hand at these geography puzzles.

    • Fairway Solitaire

      games

      Fairway Solitaire

      Are you a big fan of golf and solitaire? Then we have just the game for you. But don’t take our word for it. Swing away at Fairway solitaire.

    • Pyramid Solitaire Silver

      games

      Pyramid Solitaire Silver

      This version of classic solitaire offers an exciting, new experience to those familiar with other renditions of the game. It's also kind of addictive. Don't say we didn't warn you.

    • Britannica Trivia

      games

      Britannica Trivia

      You're a know-it-all. We are, too. Now all you have to do is prove it to Britannica before the time runs out in this free online trivia game.

    • Baby Animal Puzzles

      science

      Baby Animal Puzzles

      Who can resist a baby animal -- or a puzzle? Find out how quickly you can piece together these puzzles of puppies, piglets and more seriously cute little guys.

    • History Puzzles

      history

      History Puzzles

      From ancient civilizations to modern political movements, royals to revolutionaries, explore our past in these history puzzles.

    • Culture Puzzles

      people

      Culture Puzzles

      Remember disco and leisure suits? Ever twirl a Hula-Hoop or fold a paper crane? Fads and traditions like these help to define a culture or era. How quickly can you complete these people and culture puzzles?

    • Bike Build Game

      auto

      Bike Build Game

      If you've ever wanted to build a bike from scratch, you're not alone. Try your hand at piecing together this motorcycle in the Bike Build Game. Once you have everything in place, you can see the real thing!

    • Raindrops Game

      entertainment

      Raindrops Game

      Improve your math skills and sharpen your mind with the Raindrops game. Can you solve the math equations in the raindrops before they hit the water? There's only one way to find out.

    • Auto Puzzles

      auto

      Auto Puzzles

      Are you a rabid racing fan or a home mechanic? Or maybe a connoisseur of classic cars? Satisfy your automotive enthusiasm by piecing together these auto puzzles.

    • Home & Garden Puzzles

      home

      Home & Garden Puzzles

      Looking for your next DIY home and garden project? Try these home and garden puzzles and you might find fun and inspiration.

    • Carniball

      games

      Carniball

      An amusement park classic comes to your desktop. Get some ball-tossing target practice without leaving your chair.

    • Mahjongg Dimensions

      games

      Mahjongg Dimensions

      Play this classic game in 3-D! Just when you think you're stuck, you can rotate the cube to reveal more matches to clear. Mahjongg Dimensions is all about creativity, speed and 3-D memory.

    • Alu's Revenge

      games

      Alu's Revenge

      In Alu's Revenge, stacked stones continue to fall as you use your quick wits and speedy strategy to open the tomb and reveal the jewels inside.

    • Word Bubbles

      entertainment

      Word Bubbles

      The Word Bubbles Game will challenge your verbal agility and put your vocabulary and memory to the test. How many words can you come up with?

    • Adventure Puzzles

      adventure

      Adventure Puzzles

      Whether you're into extreme sports, wilderness survival or good old-fashioned jet-setting, explore the planet as you make the pieces of these adventure puzzles fall into place.

    • Memory Matrix

      entertainment

      Memory Matrix

      Quick, take a mental snapshot! Can you recall and reproduce the pattern that you just saw? The Memory Matrix game will put your attention span and intelligence to the test. Exercise your mind and play Memory Matrix!

    • Eggz Classic

      games

      Eggz Classic

      You've always want to throw some eggs. Here's your chance to do it -- online. You might even make some matches while you're at it.

    • Speed Match

      entertainment

      Speed Match

      Speed Match may help you to think faster and improve your reaction time. All you have to do is remember and compare the symbols flashing on your screen in this fast-paced matching game.

    • Flip Out

      games

      Flip Out

      Ever just feel like flipping out and clicking on a ton of stuff? We hear you loud and clear. Flip Out is a fresh new take on matching games. How far can you get?

Stuff You Should Watch

Test Your Knowledge

The Ultimate Abandoned Cities Quiz
TAKE THE CHALLENGE
The Ultimate Abandoned Cities Quiz
Average: 11 points | 20 Questions

Which of the following abandoned settlements experienced an extraordinary drought despite its proximity to the ocean?

Stuff ... Illustrated

stuff of the day

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

“Advice is what we ask for when we already know the answer but wish we didn't.” Who said it?

poll: what do you think?

Which came first?

all about conservation issues