Today's Mind-blower

How Presidential Debates Work

This American institution began with Abraham Lincoln following Stephen Douglas on the campaign trail and heckling him from the crowd. Today, the presidential debate is one of the most informative and anticipated markers of candidates' campaigns.

    • 10 Completely False ‘Facts’ Everyone Knows

      science

      10 Completely False ‘Facts’ Everyone Knows

      The blood in your veins is blue. Glass is a slow-moving liquid. If you touch a baby bird, its mother will abandon it. Not so fast –- if you learned any of those "facts" in school, what you learned was wrong.

    • How did 168 conquistadors take down the Incan empire?

      history

      How did 168 conquistadors take down the Incan empire?

      In less than 200 years, the Inca built an empire stretching 2,500 miles. But a Spanish conquistador and 167 other men brought them down. How did they do it?

    • 10 Impressive Art Heists

      entertainment

      10 Impressive Art Heists

      Not all heists are silver-screen worthy, but some stand out for their ingenuity -- or bravado. So how do thieves walk away with near-priceless works?

    • 10 Harrowing Survival Stories

      adventure

      10 Harrowing Survival Stories

      Most of us have heard some amazing survival stories in our lives -- people living after hours trapped under an avalanche or amputating their own limbs to get free of traps. Check out some true survival stories.

    • 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.

    • Oops! The Great Mechanical Recalls Quiz

      science

      Oops! The Great Mechanical Recalls Quiz

      A product recall is bad news for consumers and for manufacturers. Some of the most notorious ones have involved medicines, such as Tylenol and Vioxx. But the makers of cars, coffee makers and computers sometimes have to offer mea culpas, too. How total is your recall on these factory flaws?

    • Why do humans have body hair?

      science

      Why do humans have body hair?

      By waxing, shaving, plucking and shearing, we manage to keep unwanted hairs at bay. But considering how much you shell out for new razors and your trips to the salon, it's a wonder that we bend over backward to groom a bunch of dead cells.

    • 10 Unusual Investments

      money

      10 Unusual Investments

      You’ve probably sunk money into stocks, bonds and real estate, but these unusual investments may have escaped your notice. We’ll tell you which ones are the best bets and how to make money from them. Bonus: You may even have a few of these items on hand already.

    • Stuff You Should Know: Nicotine

      entertainment

      Stuff You Should Know: Nicotine

      If you're an American and you're reading this, then there's about a 30 percent chance you're addicted to nicotine. If you listened to this podcast, then you should have no problem scoring well.

    • Scientific Superstars

      science

      Scientific Superstars

      These famous scientists are responsible for everything from the invention of the telescope to the discovery of DNA. Did your favorite scientist, tinkerer or ponderer make the list?

    • Can Macs get viruses?

      computer

      Can Macs get viruses?

      Mac users have long lorded their computers’ virus immunity over PC users. But are Mac computers actually impervious to viruses, or is that just a tech myth?

    • 10 Most Dangerous Distracted Driving Habits

      auto

      10 Most Dangerous Distracted Driving Habits

      Distracted drivers: We're not trying to scold you or hasten the dawn of a vehicular nanny state. We're just pointing out some of the most dangerous habits behind the wheel.

    • Seven Wonders of the World

      adventure

      Seven Wonders of the World

      Scholars disagree about the first person to compile the list of the seven wonders, but most agree that all the items on this list are pretty incredible. Check out these amazing marvels, from the Great Pyramid of Giza to the Hanging Gardens of Babylon.

    • How much do you really know about superheroes?

      entertainment

      How much do you really know about superheroes?

      Test your knowledge of superhuman ability while we stretch your brain to the limits. Pow! Kunk! Whap!

    • What are the 10 most prevalent forms of torture and why?

      science

      What are the 10 most prevalent forms of torture and why?

      Somewhere in the world, a prisoner likely is enduring torture right now. Human rights organizations have made it their mission to report these crimes against man. Here are 10 of the most common ways torture is perpetuated in modern society.

    • Did Nostradamus make any predictions about 2012?

      science

      Did Nostradamus make any predictions about 2012?

      Every time disaster strikes, one man's name arises alongside the obsessive news coverage: Nostradamus. According to some folks, the famed French seer has predicted many of the planet's gloomy twists and turns. What did he have to say about 2012?

    • What's so dreamy about the Dreamliner?

      science

      What's so dreamy about the Dreamliner?

      The Boeing 787 Dreamliner arguably is one of the most exciting planes to hit the tarmac since the Concorde. Everyone from aviation enthusiasts to design freaks can't stop talking about it. Are you a fan?

    • How long do automotive engines last?

      auto

      How long do automotive engines last?

      Automotive engine longevity depends on several factors. But wouldn't it be nice to know exactly how long you could expect your car or truck's engine to last?

    • 10 of the Biggest Lies in History

      history

      10 of the Biggest Lies in History

      You don't look fat in those pants. I didn't copy off his paper. She's a natural blonde. I am not a crook. Lots of us lie, but what are the biggest fibs ever told?

    • Why do men have nipples?

      science

      Why do men have nipples?

      During early pregnancy, both male and female human embryos develop something called milk lines, ridges that eventually recede into nipples. Why have some species lost this unisex trait, and can human men actually produce milk?

    • Can a woman get pregnant during her period?

      science

      Can a woman get pregnant during her period?

      Pregnancy myths abound, but one of the most common is that it's impossible to get pregnant while on your period. Why is this idea so off-base, and what does the textbook 28-day cycle have to do with it?

    • 10 Awesome New Inventions You'll Never Hear About

      science

      10 Awesome New Inventions You'll Never Hear About

      Despite all the Slinkies, Band-Aids and BIC pens out there, many patented inventions that push the boundaries of innovation will likely never see widespread use, like this car that’s grown organically and emits pure oxygen.

    • 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?

    • Public Enemies 101

      people

      Public Enemies 101

      The bad, the worse and the worst. You name 'em, we've caught 'em. Get a (safe) glimpse of some of the most notorious criminals in U.S. history, from gangsters to con men to bandits in love.

    • 10 Completely Wrong Ways to Use Commas

      people

      10 Completely Wrong Ways to Use Commas

      Commas are notoriously tricky punctuation marks, and with good reason. So how can you know if you're using them correctly? It comes down to one question: Is it essential?

    • Are you a Java pro?

      computer

      Are you a Java pro?

      Java is a popular programming language that's relatively easy to use, but are you a guru or a novice? Test your knowledge of applets, variables and compiled file extensions.

    • Stuff You Should Know's James Bond Quiz

      entertainment

      Stuff You Should Know's James Bond Quiz

      James Bond is about as iconic as a movie (and book) character can be. Agent 007 sure has plenty of fans who seem to know a lot about him, so let's see how you do here on the ultimate Bond quiz.

    • Are you a geography whiz?

      geography

      Are you a geography whiz?

      There's no need to do any globetrotting to explore the regions of the Earth and to test your knowledge about the far corners of the world: You can do it with our geography quiz.

    • Who died when (and how)?

      science

      Who died when (and how)?

      Celebrity deaths and autopsies are usually big in the news. So how much do you know about famous deaths? Take the celebrity deaths quiz and see.

    • What makes diesel diesel?

      auto

      What makes diesel 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.

    • Do you know how to stay wired in the wild?

      adventure

      Do you know how to stay wired in the wild?

      If you love to camp out but can't stand the thought of being away from the Internet for any length of time, this quiz is for you. Test yourself to see how much you know about finding mobile hotspots, boosting your wireless signal and using equipment that will keep you connected, even in the most remote regions.

    • When is the cheapest time to fly?

      adventure

      When is the cheapest time to fly?

      The cost of airfare shouldn’t keep you home-bound. Do you know how to time your travels to save cash on your adventures?

    • Stuff You Should Know's Delicious Spam Quiz

      entertainment

      Stuff You Should Know's Delicious Spam Quiz

      If you've ever eaten food, then there's a chance you might have tried Spam. We're not talking about the e-mail version. We're talking canned meat. Take our Spam quiz to see where you rate on canned pork knowledge.

    • What's the difference between biological and chemical warfare?

      science

      What's the difference between biological and chemical warfare?

      Throughout history, wars have decimated civilizations, torn apart families and left sickness and chaos in their wake. So when the world's leading practitioners of war get together and ban a particular method of waging it, you know it's something really bad, like chemical and biological warfare.

    • The Ultimate Lost Cities Quiz

      adventure

      The Ultimate Lost Cities Quiz

      Lost cities have captured the imagination of many poets, film producers and story tellers. It will never be known if some of the lost cities ever existed, yet there is clear evidence as to the existence of other lost cities. If you would like to know more about a few of the most famous lost cities, have a go at this quiz.

    • Are you a superhero expert?

      entertainment

      Are you a superhero expert?

      This quiz is able to leap tall buildings in a single bound. Bullets ricochet off its chest (although it ducks when the emptied gun is thrown at it). That makes this a superhero quiz! Test your knowledge of superhuman ability while we stretch your brain to the limits. Pow! Kunk! Whap!

    • Quiz: The World’s Most Stunning Sites

      adventure

      Quiz: The World’s Most Stunning Sites

      Whether it's a natural world wonder or the site of a historic event, millions of people each year travel from all over the world to visit these interesting places. Test your knowledge on the landmarks that draw the world's biggest crowds.

    • Are you a Civil War buff?

      history

      Are you a Civil War buff?

      Although it ended more than a century ago, the scars of the Civil War are still with Americans today. Think you know more than the average Billy Yank or Johnny Reb about the blood and politics behind the war? Find out by taking our Civil War quiz.

    • How well do you know engines?

      auto

      How well do you know engines?

      Unless a vehicle is entirely electric, a combustion engine is under the hood of every car, truck and SUV, but how many people really know how one works? Do you know a spark plug from a fuel injector? Test your knowledge in our engine quiz.

    • Are you a TV trivia guru?

      electronics

      Are you a TV trivia guru?

      When TV sets made their way into American homes in the 1940s, it marked a cultural transformation. According to the Bureau of Labor Statistics, Americans spend more than half their leisure time watching television. So what have we been watching all these years?

    • What does it take to get hotel and airline upgrades?

      adventure

      What does it take to get hotel and airline upgrades?

      Everyone loves getting bumped up to first class or a room with a view and a hot tub, but these upgrades can be hard to come by. Do you know how to get hotel and airline upgrades? Take this quiz and find out!

    • Are you handy or hapless? Take the quiz

      home

      Are you handy or hapless? Take the quiz

      So, you think you know your power tools? You would never confuse a disc sander with a random orbit sander, right? Show your stuff. Read our descriptions of these power tools and see if you can figure out what we're talking about.

    • Tech Talk: How well do you know the Internet?

      computer

      Tech Talk: How well do you know the Internet?

      Since its popularization during the 1990s, the Internet has become a big part of many of our lives. But it's changed a good deal since then -- has your Internet savvy kept up with its evolution?

    • Will you be an elderly millionaire? Take the quiz

      money

      Will you be an elderly millionaire? Take the quiz

      No matter what your financial situation, it's important to start saving for retirement if you haven't already. On top of savings, retirement means your Social Security and Medicare benefits kick in, and you'll most likely want to take full advantage of those. Think you're hip to everything there is to know about retirement? Take this quiz to test your retirement savings know-how.

    • Amazing Animals: The Dinosaur Quiz

      animals

      Amazing Animals: The Dinosaur Quiz

      About 60 million years ago, something happened to wipe dinosaurs off the face of the Earth. These creatures dominated the landscape far longer than humans have been around, but many mysteries remain about their appearance, physiology and eventual extinction. So which of today's animals evolved from dinosaurs?

    • Could you survive in science-fiction stories?

      electronics

      Could you survive in science-fiction stories?

      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 jetpack and grab your raygun, because it's time to see how much you really know about science fiction gadgets.

    • A Fool and His Money Are Soon Parted: Budgeting Quiz

      money

      A Fool and His Money Are Soon Parted: Budgeting Quiz

      In tough economic times, we all start to look at trimming our expenses. Take the budgeting quiz to find out how savvy you are with your money and get a few money-saving tips along the way.

    • Fact or Fiction: The Apple You Can't Eat

      electronics

      Fact or Fiction: The Apple You Can't Eat

      Apple Inc. is no mere computer company, thank you. It's a way of life. If you consider yourself a true "Apple person," take this quiz and find out how much you really know.

    • Are you a true nerd?

      people

      Are you a true nerd?

      So, you pride yourself on math proficiency and an intimate knowledge of Wookiee mating rituals. But do you really know everything there is to know about nerd culture?

    • Who Said It: Bush or Obama?

      money

      Who Said It: Bush or Obama?

      George W. Bush and Barack Obama obviously have strong differences of opinions about many, many things. But check out these quotes about economic matters -- could it be that these two aren't as far apart as we think?

    • Do you know your way around a motorcycle?

      auto

      Do you know your way around a motorcycle?

      From Grand Prix dirt bikes to high-end models with built-in navigation systems, motorcycles appeal to a wide range of folks. All you easy riders rev up your engines and test your knowledge with the motorcycle quiz.

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

      people

      Top 10 Countries the U.S. Owes Money To

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

    • 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 Completely Wrong Ways to Use Commas

      people

      10 Completely Wrong Ways to Use Commas

      Commas are notoriously tricky punctuation marks, and with good reason. So how can you know if you're using them correctly? It comes down to one question: Is it essential?

    • Top 10 Countries in the Red

      money

      Top 10 Countries in the Red

      Countries around the world, collectively, have run up at least $40 trillion in debt, but some are worse off than others. Which nations have the largest slices of that massive debt pie?

    • 10 Types of Computers

      computer

      10 Types of Computers

      Do you know the different types of computers? Take a look at our list of 10 types of computers and learn about laptops, wearable PCs and more.

    • 10 Most Dangerous Places You Should Definitely Visit

      adventure

      10 Most Dangerous Places You Should Definitely Visit

      It isn't necessarily advisable to visit any of these areas. But then again, if you're willing to take the risk, you'll see places most people will never have the guts to visit.

    • Top 10 Ways to Make Money on the Internet

      electronics

      Top 10 Ways to Make Money on the Internet

      Most of us leave the house every day to go to work and make money. But some people have found a way to run their own Internet business from home. You can do it, too.

    • 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?

    • Top 10 Structurally Amazing Bridges

      science

      Top 10 Structurally Amazing Bridges

      Bridges carry cars, trains, bikes and people across areas they couldn't otherwise traverse. These 10 may even move your soul with their engineering ingenuity and beauty. So which 10 make the cut?

    • Top 5 Myths About Microsoft

      electronics

      Top 5 Myths About Microsoft

      How did a college dropout go on to start a world-renowned tech company and become the world's richest man in the process? The story is fraught with half-truths and myths, and we debunk five of them here.

    • 10 Gadgets for Your Next Road Trip

      adventure

      10 Gadgets for Your Next Road Trip

      Thanks to a booming technology industry that caters to people on the go, the comforts of home may soon take a backseat to their travel alternatives. What gadgets should you bring on your next road trip?

    • 10 Expensive Restorations

      science

      10 Expensive Restorations

      Over the centuries, some of the most breathtaking buildings on Earth have been restored many times. Whether repairs were needed, designs were updated or needs changed, big bucks were spent to make them happen.

    • 10 Games that Take Minutes to Learn and a Lifetime to Master

      entertainment

      10 Games that Take Minutes to Learn and a Lifetime to Master

      Games like chess and checkers have been around for centuries for a reason: They're very easy to learn, but difficult to master. What other games make the cut for this list?

    • 10 Amazing Ancient Egyptian Inventions

      science

      10 Amazing Ancient Egyptian Inventions

      There may be no greater tribute to a society's ingenuity and vision than the Great Pyramid of Giza in Egypt. What other cool stuff did the ancient Egyptians invent?

    • 10 Ways to Break Into a House

      home

      10 Ways to Break Into a House

      You might be surprised at the tricks burglars may use to break in to your home. Not because they're so cunning, but because they're really quite simple. What should you be on the lookout for?

    • 10 Foods to Buy by the Side of the Road

      adventure

      10 Foods to Buy by the Side of the Road

      Whether you're discovering the big city on foot and need a bite from the taco stand, or you've driven 300 miles and crave a good diner, we’ve got 10 foods made for the side of the road.

    • Top 5 Signs of Engine Trouble

      auto

      Top 5 Signs of Engine Trouble

      It's actually fairly rare that a car's engine suddenly stops working altogether. Usually there are warning signs to indicate engine trouble is on its way. But what are the signs?

    • Top 10 Rare Books

      entertainment

      Top 10 Rare Books

      Three things make books rare and valuable: supply, demand and condition. Most book collectors seek out works like the ones on this list because of their associations with famous authors, events and historical periods. Of course, some book lovers want them because they're really, really old.

    • 10 Things You Didn't Know About the U.S. Constitution

      people

      10 Things You Didn't Know About the U.S. Constitution

      Each September, Americans remember the document that Revolutionary War general and national assemblyman Marquis de Lafayette called "little short of a miracle." But what don't you know about the U.S. Constitution?

    • 10 Mobile Apps for Bookworms

      electronics

      10 Mobile Apps for Bookworms

      Thanks to the digital age, people who love the written word have more options than ever. Which apps should book lovers download to get their literary fix?

    • 10 Most Expensive Presidential Perks

      money

      10 Most Expensive Presidential Perks

      The U.S. president rakes in a salary of $400,000 and lives in a 132-room mansion. With a full-time pastry chef and private cinema at his or her disposal, the leader of the free world wants for nothing. Which of the perks are the priciest?

    • 10 Ways to Bug-proof Your Home

      home

      10 Ways to Bug-proof Your Home

      Whether you're frightened or fascinated by insects, you can probably agree they don't belong in your home. But how can you keep something so small from worming its way into your walls?

    • 10 Bizarre Ways to Die

      science

      10 Bizarre Ways to Die

      There are a lot of ways to die. Some are just more interesting than others. For example, death by deodorant, or death by underwire bra.

    • 10 of the Biggest Lies in History

      history

      10 of the Biggest Lies in History

      You don't look fat in those pants. I didn't copy off his paper. She's a natural blonde. I am not a crook. Lots of us lie, but what are the biggest fibs ever told?

    • Top 10 Worst-case Scenario Medical Conditions

      adventure

      Top 10 Worst-case Scenario Medical Conditions

      If you're the lone survivor of a plane crash on a deserted island or if your car breaks down on the way to grandma's, what scary medical conditions could come your way?

    • Top 10 Alternative Housing Ideas

      home

      Top 10 Alternative Housing Ideas

      As housing prices rise and people become more concerned about their environmental footprints, green construction has been gaining popularity. So what are some unique, eco-friendly alternative housing ideas?

    • 10 Cool Engineering Tricks the Romans Taught Us

      science

      10 Cool Engineering Tricks the Romans Taught Us

      When it came to building or improving things, the ancient Romans really knew their stuff. Which cool engineering tricks did they pass along to us?

    • Mount Everest

      adventure

      Mount Everest

      The forbidding slopes of Mount Everest have captivated mountain climbers for decades. But you can never really conquer Everest, merely survive it. Find out why by sifting through these images.

    • Steve Jobs

      computer

      Steve Jobs

      The enigmatic founder of Apple changed computers and technology forever. Take a look at these pictures to learn about the life and success of the man behind the Mac.

    • Washington, D.C.

      adventure

      Washington, D.C.

      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, as shown in these photos of its many museums and attractions.

    • Computer Memory

      computer

      Computer Memory

      The many different types of computer memory can be confusing. Take a look at these pictures of RAM, ROM, flash memory and computers to learn more about the memory that keeps your computer humming along.

    • Rockets

      science

      Rockets

      The science of rocketry is extremely complex and, at times, dangerous. This collection of images highlights some of the components of rockets, as well as different types of rocket-powered vehicles.

    • Constellations

      science

      Constellations

      Can you spot Orion's Belt in the night sky? How about the Big Dipper? See images of famous constellations and find out how to find true north.

    • Star Wars

      entertainment

      Star Wars

      Star Wars is one of the most successful movie franchises in cinema history. Check out these images of the classic trilogy, the prequels and the animated series -- and find out just how many people work on the Death Star.

    • Fishing

      adventure

      Fishing

      Saltwater fishing, freshwater fishing, ice fishing and even noodling -- there are many ways to catch a fish. We've assembled photos of numerous techniques, as well as some catches both big and small.

    • Laptops

      computer

      Laptops

      Laptops are continually evolving to be lighter, faster and more portable. While some predict the fall of the laptop at the hands of the tablet, take a look at some of the portable computers that have made a mark on the industry in recent years.

    • The Posters of the Olympics

      entertainment

      The Posters of the Olympics

      From the parade of nations to the lighting of the cauldron, the official pageantry that accompanies the Olympics is part of what makes it so fun. To celebrate its history, we’ve compiled an image gallery commemorating a few of our favorite posters over the years.

    • Time Measurement

      science

      Time Measurement

      Time measurement has changed dramatically over the course of man's life on Earth. From the sun-dial to the digital watch, check out our gallery on to see which variations on the clock stand the test of time.

    • Recession

      money

      Recession

      It may not be pretty, but the recession affects us all. So how did we get here? Trace the economy's path from subprime collapse to the mortgage crisis to the credit market crisis.

    • Military Jets

      science

      Military Jets

      Jets are fast, fierce and effective, which is why they're some of the best tools that a military has at its disposal. From reconnaissance to target engagement, these aircraft are sophisticated assets.

    • Tinnovations

      science

      Tinnovations

      Who knew something as simple as an Altoids tin could be turned into such creations as these? These photos feature some impressive "tinnovations."

    • Ancient Greece

      adventure

      Ancient Greece

      Like the imposing white marble of many Greek monuments, the impact of Ancient Greece still stands strong today. Learn about the architecture, pottery engravings and philosophy of the Ancient Greek period through these pictures.

    • Bridges

      science

      Bridges

      Bridges are amazing displays of scientific engineering, all designed to get us from point A to point B when we otherwise couldn't. This collection of pictures highlights some of the most spectacular bridge structures ever created.

    • Costumes 101

      entertainment

      Costumes 101

      They're at every sci-fi convention and Halloween party -- those people who always have the most amazing original costumes. Learn the basics of building a costume and find out what it takes to do well in costume competitions.

    • Nuclear Meltdown Disasters

      science

      Nuclear Meltdown Disasters

      Nuclear power, for the most part, is a clean alternative energy source, but nuclear meltdowns and disasters cause people to question the safety of the technology. See pictures of some of the most catastrophic nuclear meltdown disasters.

    • Computer Hacking

      computer

      Computer Hacking

      Hackers have become famous (and infamous) for the viruses they create and their ability to outsmart our password protected secrets. How can you deter hackers and reduce the risk of identity theft?

    • Batteries

      electronics

      Batteries

      Batteries power everyday objects and are becoming more "green" every day. Take a look at the history, technologies and environmental concerns surround batteries.

    • Jim Henson

      entertainment

      Jim Henson

      Jim Henson was a world-famous puppeteer, television producer and artist. He brought the world works of art that will carry on for centuries. Learn about Jim Henson's legacy with these fascinating images chronicling his life's work.

    • Tax Havens

      money

      Tax Havens

      The wealthy have known about these countries for decades, but we're just learning about these elite tax havens -- just as transparency agreements put most of them in jeopardy. Take a look at these gorgeous tax-free locations before you have to start telling the government where you put your cash.

    • Must-Have Power Tools

      home

      Must-Have Power Tools

      Sometimes, the standard toolkit just isn't up to the job at hand. Take a look at some of the best power tools to add to your collection, and be ready for any fix-it situation.

    • The Changing Tides of Fashion

      people

      The Changing Tides of Fashion

      Can a society's fashion choices define an era? Learn about the trends and fads of what people wear, from the classical to the modern, in this image gallery.

    • Amazing Caves

      science

      Amazing Caves

      Whether they're underwater or on dry land, caves can offer up dramatic views and provide homes for exotic plants and animals -- and people, too. Take a look at a handful of fascinating cave locales.

    • Joseph McCarthy

      history

      Joseph McCarthy

      American politician and inquisitor Joseph McCarthy (1908 - 1957) became famous for his 1950s investigations into supposed communist subversion. Learn about the man behind McCarthyism, and what brought about his downfall.

    • Role of a Lifetime -- Famous Parents

      people

      Role of a Lifetime -- Famous Parents

      Once Beyonce publicly revealed her baby bump in 2011, tabloids and blogs tracked her growing belly with rapt attention, making her one of the most high-profile new moms of the 21st century. The following famous parents aren't all red carpet royalty, but each is a unique case study on how the limelight can impact raising kids.

    • Why aren't the keys on my computer in alphabetical order?

      videos

      Why aren't the keys on my computer in alphabetical order?

      Whether it’s the flexible straw or the search engine, every invention has a story. Get a closer look at the inventors responsible for everything from dishwashers to dynamite in this animated series by HowStuffWorks.com.

    • How do animals survive in the wild?

      videos

      How do animals survive in the wild?

      Whether predator or prey, every wild animal on the planet faces a daily struggle for survival. Check out this series to learn more about the lives of everything from crocodiles to ocelots.

    • Is there anything faster than light?

      videos

      Is there anything faster than light?

      Albert Einstein discovered that time is relative, meaning that when objects travel at, or close to the speed of light, distances stretch and time slows down. Learn more about light, time, mass, energy and the very fundamentals of the universe in these videos.

    • How do astronauts pray?

      videos

      How do astronauts pray?

      From religion in space to digital immortality, the future is full of profound challenges and astonishing opportunities. Join the staff of HowStuffWorks.com as we explore some of the most promising -- and perplexing -- global issues of the future.

    • I Can't Believe They Built That: Concept Cars

      videos

      I Can't Believe They Built That: Concept Cars

      They're sexy, they're striking and they're often weird: Concept cars. Get a close-up look at some of the latest and greatest concept cars in this episode.

    • The Mythbusters: From Sharks to Space Rockets

      videos

      The Mythbusters: From Sharks to Space Rockets

      Whether they're covering sharks or space rockets, you can count on the Mythbusters team to get to the bottom of every myth. Tune in to this playlist to learn more about mythbusting.

    • How to Be Smooth: Cristen Conger on Pick-up Artists

      videos

      How to Be Smooth: Cristen Conger on Pick-up Artists

      Can women be pick-up artists? How can you tell if someone's trying to pick you up? Join Ben Bowlin and Cristen Conger, host of Stuff Mom Never Told, as they take a closer look at the strange world of pick-up artists.

    • Science of the Impossible: Aliens, Psychics and the Afterlife

      videos

      Science of the Impossible: Aliens, Psychics and the Afterlife

      What happens when people believe they've been abducted by aliens? Can people return from the dead? Learn more in this playlist.

    • 10 Ways to Be Abducted by an Alien

      videos

      10 Ways to Be Abducted by an Alien

      Does intelligent life exist on other planets? The universe is a big place and it's easy to argue that there are bound to be other creatures out there. But what if you met one?

    • Hanging Ten

      videos

      Hanging Ten

      Riding mile-high waves alongside wild sea creatures, these surfers are true adrenaline junkies. Grab your board and catch a wave with these exciting surfing videos.

    • How to Make Millions

      videos

      How to Make Millions

      If you're like most people, one million dollars would permanently change your life. So how do you get it? Listen in for first-hand accounts from millionaire entrepreneurs.

    • Why do people think the world will end in 2012?

      videos

      Why do people think the world will end in 2012?

      Learn about the science behind surreal and supernatural phenomena, from alien hand syndrome to zombies, in these videos from Stuff You Should Know and Stuff They Don't Want You to Know.

    • From Bacteria to Bio Diesel: The Future of Fuel

      videos

      From Bacteria to Bio Diesel: The Future of Fuel

      As fears of diminishing oil resources grow, companies, consumers and governments across the planet search for the next source of global fuel. But what will it be, exactly? Check out this playlist to learn more.

    • How to Change Someone's Life With 25 Dollars

      videos

      How to Change Someone's Life With 25 Dollars

      Learn all about government and economic concepts, from microloans to corporate personhood, with these videos from HowStuffWorks.

    • Unsolved History: What Really Happened?

      videos

      Unsolved History: What Really Happened?

      Whether covering the Civil War or conspiracies to kill Adolph Hitler, the Unsolved History series takes a closer look at some of history's greatest enigmas.

    • Stuff to Blow Your Kid's Mind

      videos

      Stuff to Blow Your Kid's Mind

      Monsters. Rainbows. Magnets. Volcanoes. Kids love 'em. (We do, too.) These videos showcase a variety of wild, weird and fascinating topics to make your offspring's jaws drop.

    • The Most Famous Photographer Not on This Planet

      videos

      The Most Famous Photographer Not on This Planet

      The Hubble Space Telescope has been doing laps around the Earth every 90 minutes since 1990. How does NASA control the Hubble telescope, and what does the future hold as Hubble nears retirement?

    • Who built the Nazca lines?

      videos

      Who built the Nazca lines?

      Travel with the hosts of The Coolest Stuff on the Planet as they take on the most famous sites in Central and South America, from Lake Titicaca to Machu Picchu.

    • Learn to Build Your Own House

      videos

      Learn to Build Your Own House

      Have you caught the DIY bug? Whether you're new to the fix-it-up game or an old hand at around-the-house construction, you'll find this playlist chock-full of tips on everything from insulation to flooring.

    • Can your own hands turn against you?

      videos

      Can your own hands turn against you?

      Can humans cause earthquakes? What the heck is alien hand syndrome? Join Chuck and Josh as they explore the some of the coolest (and weirdest) Stuff You Should Know in their television shorts on Science.

    • Learn How to Survive in the Wild

      videos

      Learn How to Survive in the Wild

      Could you survive sleeping overnight in a freezing snow bank? What would you do if you found yourself floating naked on the open sea? Learn how to survive almost any environment in this playlist.

    • When the Waters Rise Too High

      videos

      When the Waters Rise Too High

      We tend to think of rain as simply a part of life -- certainly nothing to fear. But when that rainfall gets out of hand, the rising waters can be deadly. Watch these videos to see daring rescues and the tragic aftermath of extreme floods.

    • Human Mutants: Real-life X-Men?

      videos

      Human Mutants: Real-life X-Men?

      Mutants aren't just a comic book invention. Check out this playlist for a closer look at real-life mutations.

    • Stuff You Should Know About Human Beings, Right Now

      videos

      Stuff You Should Know About Human Beings, Right Now

      Why do married couples look alike? What causes the itching sensation? Learn the answers to these questions and more with these videos from Stuff You Should Know.

    • Did Joseph Stalin really want a monkey army?

      videos

      Did Joseph Stalin really want a monkey army?

      From UFOs to psychic powers and government conspiracies, history is riddled with unexplained events. Get a closer look at the Stuff They Don't Want You to Know in these videos.

    • Will robots inherit the Earth?

      videos

      Will robots inherit the Earth?

      How do personal satellite assistants work? What's the next step in artificial intelligence? Tune in to learn the answers to these questions and more in this playlist by HowStuffWorks.com.

    • Vacation Mogul

      games

      Vacation Mogul

      Become one of the rich and powerful as you buy and sell land, turn bungalows into five-star hotels and build specialty shops. Get the tourists to visit, provide entertainment and stay on track with employees and supplies.

    • Picture Pieces

      games

      Picture Pieces

      In this addictive picture puzzle game, you’ll be presented with pieces of a larger image, which you’ll then have to click and drag to the right spot. The more accurate you are, the higher you’ll score. Are you and your eagle eyes ready to play?

    • Cradle of Rome 2

      games

      Cradle of Rome 2

      With extra Blitz and Tourney modes, 28 trophies, medals, achievement cups and three difficulty settings, becoming Emperor of Rome will lavish you with exhilarating rewards.

    • Wild West Story -- The Beginnings

      games

      Wild West Story -- The Beginnings

      Bella and Coyote Cub are two drifters who stumble across an abandoned mining town. Restoring a town while dealing with a rowdy group of desperadoes can be challenging! Join Bella and Coyote Cub on this amazing journey.

    • Farm Frenzy 3 -- American Pie

      games

      Farm Frenzy 3 -- American Pie

      Save the family farm in Farm Frenzy 3 -- American Pie, and ranch your way through the American heartland!

    • Woodville Chronicles

      games

      Woodville Chronicles

      Imagine a sunny clearing in the woods surrounded by lush trees and a pleasant lake. Here is where you will build the wonderful town of your dreams. Use five fabulous power-ups, rotate the boards and watch as your town comes to life.

    • Wedding Salon

      games

      Wedding Salon

      Join Holly in 70 wonderful levels to make brides and grooms happy. Help wedding guests prepare by dressing them, picking out jewelry, styling their hair and more. Once you find the right approach to each customer, your efforts will be rewarded with generous tips.

    • Jigsaw: Intermediate

      games

      Jigsaw: Intermediate

      With these free jigsaw puzzle games, you won't have to worry about losing a piece under the dining room table.

    • 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!

    • Mahjongg Dark Dimensions

      games

      Mahjongg Dark Dimensions

      The new puzzle classic returns with yet another twist!

    • Pyramid Solitaire Silver

      games

      Pyramid Solitaire Silver

      This brand-new version of classic solitaire action offers an exciting new experience to those familiar with other renditions of the game.

    • Fruits Inc.

      games

      Fruits Inc.

      Market your products, down to the color and style of packaging. Are you prepared to roll up your sleeves and harvest the fun? Play Fruits, Inc.!

    • Dreamsdwell Stories

      games

      Dreamsdwell Stories

      Build a colorful fantasy world by gathering magic orbs in Dreamsdwell Stories, a fun match-three game with a twist.

    • Treasures of Montezuma

      games

      Treasures of Montezuma

      Featuring more than 40 challenging levels, original game play and gorgeous full-screen graphics, Treasures of Montezuma is a bold adventure of strategic surprises like you've never seen before.

    • The Island Castaway

      games

      The Island Castaway

      An ocean liner gets caught in a fierce storm and goes down, leaving a group of passengers to fend for themselves on a nearby tropical island. To get back home, you'll have to find answers and overcome more than 200 diverse quests. Can you make it through?

    • The Scruffs

      games

      The Scruffs

      The Scruffs have enlisted your help to save their beloved family home from being sold. Help the Scruffs stave off this looming family crisis and uncover the secret that will change their lives forever.

    • Crossword: Regular

      games

      Crossword: Regular

      Are you ready for a classic crossword challenge? Online Crossword: Regular provides beginners with game play that will surely satisfy your puzzle craving.

    • The Lost Kingdom Prophecy

      games

      The Lost Kingdom Prophecy

      The Guardians of the Elements have turned away from the kingdom and allowed a banished wizard to spread corruption and fear. With eight different modes, an amazing storyline and gorgeous graphics, this magical quest will leave you breathless as you prove that this wonderful realm deserves a second chance.

    • Volcano Explorer

      science

      Volcano Explorer

      Volcanoes are pressure valves that release energy from deep within Earth. Learn about different types of volcanoes and create your own virtual volcano with the Volcano Explorer.

    • Youda Safari

      games

      Youda Safari

      As head of safari parks around the world, it's your job to show visitors the time of their life. Take care of these wildlife enthusiasts and give them an experience they will never forget as you guide past crazy monkeys, rebellious rhinos, hilarious hippos and more! Manage the day-to-day operations of the wildlife parks in 70 charming levels.

    • 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. Flex your brain and focus your mind, play Color Match today!

    • 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? Exercise your mind and play Word Bubbles today!

    • Sudoku Ultra

      games

      Sudoku Ultra

      Other sudoku games will let you use cheats, either with or without a penalty. But this game is a different story: one with no cheats!

    • Monkey Gems

      games

      Monkey Gems

      BenBen the monkey needs your help! It looks like he got himself in some trouble with the local snakes by stealing their rattles. Help him fend off the colorful reptiles one by one in this fun and exciting match-making adventure! With three fantastic chapters, gorgeous visuals and engaging sound, Monkey Gems is one game you'll want to play over and over again!

    • Spliterature

      games

      Spliterature

      Watch out for puns, twists, turns, jokes and general trickery as you try to score as many points as you can in this word game.

    • Cannon Challenge

      science

      Cannon Challenge

      Take charge of your own Non-Line-of-Sight (NLOS) Cannon, the revolutionary gun that represents the future of U.S. Field Artillery.

    • Kritter Krawler

      games

      Kritter Krawler

      If you're in the mood for a grid-filling game, look no further. You'll find yourself running from mechanical monstrosities as you try to fill in as much of the game board as you can. Keep an eye out for power-ups while you're playing to give yourself a nice boost of speed to help you clear the board even faster!

Stuff You Should Watch

image gallery of the day

quiz of the day

The Ultimate Backscatter X-ray Scanner Quiz
TAKE THE CHALLENGE
The Ultimate Backscatter X-ray Scanner Quiz
Average: 14 points | 20 Questions

Backscatter scanners cost around how much?

stuff of the day

Did you know: A silo is a storage bin for chopped plants and grains. Silos used on farms allow farmers to supply livestock with nutritious feed all year and to delay the sale of their crops. Another random fact

“Acting is the most minor of gifts and not a very high-class way to earn a living. After all, Shirley Temple could do it at the age of 4.” Who said it?

poll: what do you think?

Do you ever go to watch live theater?

all about scientists