Today's Mind-blower

Why is octopus blood blue?

Unless you've butchered an octopus, you might assume that it's as red-blooded as you are. And you'd be wrong. Why are octopuses the original blue bloods?

    • Why do we love cute things?

      health

      Why do we love cute things?

      Social media is overflowing with cute content -- everything from babies to puppies to seriously adorable lunchboxes. Find out why cute things make you go "aww!"

    • How does alcohol make you drunk?

      health

      How does alcohol make you drunk?

      At best, drinking alcohol can lower your inhibitions and relax you; at worst, it can be dangerous. Find out exactly how alcohol does what it does.

    • 10 Serious Mistakes in Car Maintenance

      auto

      10 Serious Mistakes in Car Maintenance

      There are so many dangerous, irresponsible and downright ridiculous things you can do to a car while "fixing" it that it was difficult to narrow this list down to just 10 examples.

    • Did medieval people really drink beer instead of water?

      history

      Did medieval people really drink beer instead of water?

      Imagine a mother telling her thirsty child not to sip water, but to swig some much safer beer instead. Could this scenario have really happened in medieval times?

    • Test Your Knowledge: Scientific Misconceptions

      science

      Test Your Knowledge: Scientific Misconceptions

      There's no shame in admitting that we don't have all the answers. But there is a little shame when we're spewing scientific nonsense to our friends and colleagues. Test yourself to determine what so-called "science" you've misunderstood for years.

    • How Gorilla Glass Works

      electronics

      How Gorilla Glass Works

      Touch screens are useful, assuming you don't drop and break them, or scratch them up in your pocket or purse. How do you make abuse-resistant glass? Ask Corning.

    • 10 Things You Should Never Throw Away

      home

      10 Things You Should Never Throw Away

      There are things we consciously recycle, such as used clothing, and there are things we toss without a second thought, like foil and rubber bands. But the latter have uses you may never have dreamed of.

    • Who Sang It: The Rolling Stones or The Beatles?

      entertainment

      Who Sang It: The Rolling Stones or The Beatles?

      You may think you know your British rock bands, but let's see how deep that knowledge really goes. We dug deep for some Stones and Beatles lyrics. Can you tell if it's the Fab Four or Jagger and friends? Pull out your vinyl and test your musical memory!

    • Why do men have nipples?

      health

      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?

    • Top 10 Things Your Nails Say About Your Health

      health

      Top 10 Things Your Nails Say About Your Health

      Whether trimmed or long, polished or plain, your nails say a lot about the state of your health. What warning signs are literally at your fingertips?

    • 10 Things You Didn't Know About Einstein

      science

      10 Things You Didn't Know About Einstein

      The man who had some theories about relativity was also an eccentric who gleefully eschewed socks, dodged German military service and spurned social conventions.

    • 10 Worst Adaptations in the Animal Kingdom

      science

      10 Worst Adaptations in the Animal Kingdom

      Humans can certainly claim some of these, but sloths, giraffes and pandas wanted a piece of the action, too. The hyena adaptation, however, may just blow your mind.

    • BrainStuff: How does laughter work?

      shows

      BrainStuff: How does laughter work?

      What's going on in our brains when we laugh?

    • How did people discover beer?

      history

      How did people discover beer?

      Beer may be one of the most humble of alcoholic beverages, but its history is no less noble -- or muddled -- than wine or liquor.

    • Is refined sugar toxic?

      health

      Is refined sugar toxic?

      For years, health experts zeroed in on fat reduction as the way to lose weight and stay healthy. It's possible, though, that refined sugar is taking an even worse toll on our bodies.

    • How Fear Works

      science

      How Fear Works

      What exactly is fear? In this article, we'll examine the psychological and physical properties of fear, find out what causes a fear response and look at some ways you can defeat it.

    • Stuff Mom Never Told You: Is PMS a myth?

      shows

      Stuff Mom Never Told You: Is PMS a myth?

      Some studies suggest premenstrual syndrome, or PMS, might be more social conditioning than biological fact.

    • What if I never took a bath?

      health

      What if I never took a bath?

      Your initial reaction to the thought of no more baths may be "gross!" But there also could be more serious ramifications than an unpleasant layer of grime.

    • How did people discover liquor?

      history

      How did people discover liquor?

      Think of a flavor, any flavor -- from apple to zucchini -- and there's probably a liquor-based beverage out there incorporating it. Find out how the hard stuff probably got its start.

    • How to Make Money as a Kid

      money

      How to Make Money as a Kid

      Lemonade stands and paper routes might have worked for your parents, but they're so yesterday. What projects can a kid do now that will earn a nice amount of spending money?

    • Stuff You Should Know: Don't Be Dumb: Does Counting the Seconds After a Lightning Strike Before Thunder Work?

      shows

      Stuff You Should Know: Don't Be Dumb: Does Counting the Seconds After a Lightning Strike Before Thunder Work?

      You've probably heard that you can count the seconds between seeing a lightning strike and hearing thunder to figure out how far away it is. That's pretty much true, and here's why.

    • Fw:Thinking: 5 Science Fiction Technologies That Actually EXIST

      shows

      Fw:Thinking: 5 Science Fiction Technologies That Actually EXIST

      From Star Trek to Iron Man, Jonathan explores the sci-fi technologies that already exist in the real world!

    • Could you really outrun a Tyrannosaurus rex?

      animals

      Could you really outrun a Tyrannosaurus rex?

      OK, hop in your time machine and go back 67 million years or so to the Cretaceous period. Then find a Tyrannosaurus rex and challenge it to a race. Sounds crazy, huh? Actually, the race results may surprise you.

    • 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 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?

    • 10 Things to Do Before You List Your House

      home

      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 Small Space Storage Solutions You Never Knew

      home

      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.

    • Top 10 Simple Ways to Discourage Break-ins

      home

      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.

    • 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.

    • 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 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 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 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 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.

    • 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 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 Tips for More Effective PowerPoint Presentations

      money

      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.

    • 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 '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?

    • 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 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 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.

    • 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 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?

    • 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?

    • 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?

    • 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.

    • 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 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?

    • 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?

    • 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.

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

      home

      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'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.

    • 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.

    • 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?

    • 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?

    • 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.

    • 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 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.

    • 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.

    • 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.

    • 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?

    • 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 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?

    • 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?

    • 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?

    • 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.

    • 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?

    • Popular Web Site Pictures

      computer

      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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • Image Gallery: Incredible Homes of the Future

      home

      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!

    • 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.

    • Tree Pictures

      home

      Tree Pictures

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

    • 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.

    • Turbocharger Pictures

      auto

      Turbocharger Pictures

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

    • 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?

    • Annual Flowers Image Gallery

      home

      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.

    • 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.

    • 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.

    • Beijing Pictures

      adventure

      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.

    • Foods for Beautiful Skin Pictures

      health

      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.

    • 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.

    • 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.

    • 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.

    • 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.

    • Laptop Pictures

      computer

      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.

    • 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.

    • 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.

    • The Ultimate Replace or Repair Washing Machine Quiz

      home

      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 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 Room Air Conditioner Repair Quiz

      home

      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.

    • Will you EVER get back to sleep? The Insomnia Quiz

      health

      Will you EVER get back to sleep? The Insomnia Quiz

      Whether it's a few sleepless nights from time to time or long-term insomnia, millions of people are tired. Test how much you know about how to get a good night's sleep -- and what to do when you can't -- in our insomnia 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.

    • The Ultimate John Hughes Movies Quiz

      entertainment

      The Ultimate John Hughes Movies Quiz

      John Hughes nailed the 1980s with films like "The Breakfast Club." Brat-packed with great actors, his movies made teens everywhere feel like it was OK to be themselves. But how much do you know about Hughes' life and other films?

    • The Ultimate Basic Plumbing Quiz

      home

      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 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.

    • Gadget Savvy: Capacitors Quiz

      electronics

      Gadget Savvy: Capacitors Quiz

      What looks like a battery, has two terminals like a battery and stores electrons like a battery? Capacitors can store and release electrical energy, but don't replenish their supply. How do capacitors work, and what tools rely on them?

    • 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.

    • 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.

    • 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.

    • Mental Disorders Quiz

      health

      Mental Disorders Quiz

      There are several mental disorders, and many people you know suffer from them. Check out this mental disorders quiz and see how much you know about how they affect those who suffer from them.

    • 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.

    • 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.

    • Quiz: Do you Know how to Maintain a Central Air Conditioner?

      home

      Quiz: Do you Know how to Maintain a Central Air Conditioner?

      Learn how to make some repairs of your central air conditioner. Take this quiz to find out how much you know about how to repair central air conditioners.

    • Brewing, Distilling and Denaturing: Test Your Alcohol Knowledge

      science

      Brewing, Distilling and Denaturing: Test Your Alcohol Knowledge

      Booze, hooch, devil's brew. Whatever name you call it, alcohol is really just a combination of carbon, hydrogen and oxygen molecules. But this simple compound can have a complicated effect on our bodies. How do we process alcohol, and what lasting ma

    • Lego Physics Quiz

      science

      Lego Physics Quiz

      Some of the world's most innovative engineers credit Legos for sparking their interest in physics and experimentation. Lego blocks may remind you of childhood, but the lessons they teach can last a lifetime. Channel your inner Lego geek with 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?

    • Stuff You Should Know's Ultimate Roller Coaster Quiz

      shows

      Stuff You Should Know's Ultimate Roller Coaster Quiz

      Roller coasters are a regular American institution. And if you listened to our podcast on coasters, then this one should be a breeze. Hang your head in shame for any score under 15 out of 20.

    • 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.

    • True Love Quiz

      health

      True Love Quiz

      Is your love true? Take this love quiz and find out if are in love.

    • 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.

    • 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.

    • Why don't men carry purses?

      shows

      Why don't men carry purses?

      Women carry purses, while men tote around wallets -- but why?

    • Why shouldn't you give honey to babies?

      shows

      Why shouldn't you give honey to babies?

      Botulism bacteria creates a type of poisoning and paralysis -- but how does it actually work? **We goofed! A nanogram is a billionth of a gram. That's 0.000000001 grams.

    • 5 Things About Your Dog You Didn't Necessarily Know

      shows

      5 Things About Your Dog You Didn't Necessarily Know

      Does your dog really love you? Probably. But that all hinges on how you define "love" for another species. Learn more about man's best friend in this video from Stuff to Blow Your Mind.

    • Why Is Friday the 13th Considered Unlucky?

      shows

      Why Is Friday the 13th Considered Unlucky?

      In countries like the United States, people have a superstitious fear of one particular date: Friday the 13th. But why? In this episode, Cristen discusses the two main fears that have fueled the Friday the 13th superstitions.

    • Making Things Better: Remote Controls

      shows

      Making Things Better: Remote Controls

      On this special episode of Stuff You Should Know, Josh and Chuck explore the history of remote controls, beginning with Nicola Tesla's first experiments in the late 1800s all the way up to the all-in-one smartphone remote apps of today.

    • Why are breasts attractive?

      shows

      Why are breasts attractive?

      If breasts are little more than sacks of fat, why are they so attractive to heterosexual men? Cristen dishes on a new neuroscientific theory about how breasts affect both men's and women's brains to promote bonding.

    • Naked and Afraid

      shows

      Naked and Afraid

      Covering ourselves with textiles is a mixture of morality and physical security. why did humans evolve to be naked and squishy in the first place? And what does an octopus have to do with it?

    • Could Twitter Crash the Stock Market?

      shows

      Could Twitter Crash the Stock Market?

      In the future, could stock market algorithms create fake news stories and social media posts, just to gain an advantage?

    • What Are Hot Dogs Made From?

      shows

      What Are Hot Dogs Made From?

      Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this episode to learn more about the mysterious ingredients of hot dogs.

    • Tiananmen Square

      shows

      Tiananmen Square

      On June 4, 1989, the Chinese government presided over a brutal crackdown on student protesters. Twenty-four years later, it still resonates in worldwide politics. Josh and Chuck mark the anniversary in this episode of This Day in History.

    • The Money Pit

      shows

      The Money Pit

      Located off the coast of Nova Scotia, Oak Island seems like an unremarkable place -- except, that is, for the mysterious site known as the money pit. But what is it, exactly? Who built it? Most importantly, what does it contain?

    • Money: Men vs. Women

      shows

      Money: Men vs. Women

      When it comes to spending and saving, who's better with finances: men or women? Cristen investigates the fiscal battle of the sexes.

    • The Science of Showing Off

      shows

      The Science of Showing Off

      What happens in the brain when we brag about ourselves? Cristen shows off the fascinating science of self-promotion.

    • Sex and Death: The art of Jason Voorhees

      shows

      Sex and Death: The art of Jason Voorhees

      Ah, what are we to make of Jason Voorhees, the hockey-masked killing machine from the “Friday the 13th" franchise? Join Dr. Anton Jessup in the University basement for a frank discussion on what natural world biology can tell us about the behavior of

    • Don't Be Dumb: Asparagus Pee

      shows

      Don't Be Dumb: Asparagus Pee

      Maybe you've noticed that when you eat aspargus your urine tends to smell a little funny. Or maybe you haven't. It could be that you're either one of those people who can't smell asparagus pee or doesn't produce it. Just watch this and be quiet.

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

      shows

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

      In this special episode, we look at the origin and the economic philosophy behind the saying that there's no such thing as a free lunch.

    • René Laennec and the Invention of the Stethoscope

      shows

      René Laennec and the Invention of the Stethoscope

      Nowadays it seems that every doctor has a stethoscope. But who invented this nifty device, and how? Tune in to learn more.

    • Are long-distance relationships healthy?

      shows

      Are long-distance relationships healthy?

      How do long-distance relationships size up against geographically-close dating scenarios? Cristen shares the research and tips for making long distance relationships work.

    • What's the matter with boobs?

      shows

      What's the matter with boobs?

      Cristen counsels a young woman whose boyfriend got angry about her topless art project.

    • Giant Oarfish, Oh My!

      shows

      Giant Oarfish, Oh My!

      Oarfish make quite an impression when they wash up on the beach, but what's the scoop on these serpentine sea dwellers?

    • Honest Women's Magazine Headlines

      shows

      Honest Women's Magazine Headlines

      What women's magazines are REALLY telling readers about their bodies, beauty and sex.

    • Solar Sails: Come Fly the Friendly Universe

      shows

      Solar Sails: Come Fly the Friendly Universe

      The sun is constantly bombarding our planet with solar energy, and it's possible to measure the effect of this power. In this episode, Robert and Julie demonstrate how solar collection technologies can harness the power of the sun.

    • How (And Why) Do Cats Purr?

      shows

      How (And Why) Do Cats Purr?

      Cats purr for all kinds of reasons, including communication and healing themselves. Cristen explains how purring works and which cats can't do it.

    • Why Do Human Beings Have Eyebrows?

      shows

      Why Do Human Beings Have Eyebrows?

      Eyebrows are prominent human features, but what purpose do they serve? Scientists think they help keep stuff out of our eyes and aid in nonverbal communication, among other things. Learn more about eyebrows in this episode.

    • How Do Tides Work?

      shows

      How Do Tides Work?

      Most people are already familiar with the idea of high and low tides, but where do they come from? What causes this movement and why does it occur with such regularity? Tune in as Josh demystifies the rise and fall of the sea.

Stuff You Should Watch

check out our shows

test your knowledge

Clutter or Keeper?
TAKE THE CHALLENGE
Clutter or Keeper?
Average: 0 points | 20 Questions

An old lunchbox?

Stuff ... Illustrated

quotestuff & factstuff

Did you know: The brain requires more than 25 percent of the oxygen used by the human body. Another random fact

“Only those who dare to fail greatly can ever achieve greatly.” Who said it?

poll: what do you think?

How far in advance do you plan your vacations?

all about conspiracy theories