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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.

Fun And Games

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.

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?

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?

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.

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?

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.

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.

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.

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?

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?

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.

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?

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?

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?

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?

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.

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?

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.

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?

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.
shows
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.

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.

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.

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.

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.

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?

shows
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.

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.

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.

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!

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.

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.

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.

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?

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!

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.

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?

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.

science
Locked and Loaded: Take a Shot at Our Firearms Quiz
Cannons, howitzers and other artillery pieces produce more bang for the buck, but they're not so easy to carry in a holster. That's why armies need firearms. Now it's time to see if you're a firearms fanatic or a fizzling dud.

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.

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.

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.

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?

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?

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.
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?

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?

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?

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?

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.

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.

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.

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?

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?

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.

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?

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.

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?

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?

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?

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.

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?

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.

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?

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?

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?

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?

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.

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?

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?

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?

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?
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.

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.

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
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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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."

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.

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.

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.

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
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?

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.

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.

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.

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.

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.

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.

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.

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.
science
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.

science
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.

science
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.

shows
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.

science
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.

science
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.

science
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?

money
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.

science
Unexplained Phenomena and the Supernatural
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.

history
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.

shows
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.

home
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.

people
The Mafia
When did the mafia first develop? Who was Al Capone? Get the inside scoop on organized crime in these videos. We promise you won’t fuhgeddaboudit.

adventure
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.

science
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.

science
Earthquakes
Earthquakes are one of the most terrifying and destructive natural disasters. Learn about the causes and results of earthquakes.

shows
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.

science
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.

science
The Food Chain
It really is the circle of life -- a food chain helps ensure a stable ecosystem. Whether you’re rooting for predator or prey, you won’t be able to turn away from these videos.

science
Time Travel
Will time travel ever be a reality? Would you travel through time if you had the chance? Channel your inner Marty McFly and explore the possibilities with these videos.

history
Egypt's 10 Greatest Discoveries
There's more to Egypt than King Tut and pyramids. Learn about the greatest archaeological discoveries in Egypt.

science
Gravity
We couldn't live without it, but we're still not really sure we have it all figured out. What do we know about this incredible force, and what mysteries of gravity still remain?

history
World War II and the Holocaust
Learn about the horrors of the holocaust and the German front of World War II.

electronics
Digital Cameras
What's the use of having a digital camera if you don't know how to use it? Get tips for buying the right camera and taking better photos with these videos.

science
Chemical Reactions
Life depends on chemical reactions to run. Whether you’re making some home brew or sitting in a car with an internal combustion engine, chemical reactions power the world. Sometimes, though, they can cause unexpected health issues.

science
Acceleration
Humans like speed. Learn all about the importance of acceleration and how it factors into everything from Newton's laws of motion to building a better bike.
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.

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?

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.

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.

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

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.

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.

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

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!

games
Mahjongg Dark Dimensions
The new puzzle classic returns with yet another twist!

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.

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.!

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

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.

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?

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.

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.

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.

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.

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.

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!

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!

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!

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!

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.

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.

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!