So how can a game teach us about engineering? Pretty easily! When you're trying to solve a game, or a puzzle, or whatever, you will have a bunch of variables. The trick is knowing how to change one variable at a time to see what changes....

Brown cats are something of a rarity, but you may have something pretty close.

Infectious diseases have had some pretty major impacts on human history… and that’s putting it mildly. Here are 6 diseases that shaped human history

What's the best sleeping position? Well, with all the pseudoscience to consider, it might just depend on who you are. *The graphic shows the stomach on the wrong side of the body. It should be pictured on the left side of the body, not...

If you celebrate American Thanksgiving, odds are you're full of food and pretty sleepy right about now. While you drift off for a post-feast nap, enjoy this compilation of episodes covering all kinds of different sleepy, science-y topics!

If our sun turned into a black hole, you might think our solar system would be doomed, but in reality that's just not how black holes work.

There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like: What's the biggest couch you can slide around a 90-degree corner? Chapters MOVING SOFA PROBLEM 0:35 MOSER'S...

It was one of the strangest trials in Dutch history. The defendant in a 1947 case was an art forger who had counterfeited millions of dollars worth of paintings. But he wasn’t arguing his innocence— in fact, his life depended on proving...

The pigments in our food all get destroyed on their way through our digestive system...so where do the colors of our poop and pee come from?

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For the pioneers of human aviation, one of the trickiest problems was figuring out how to steer the early craft. Then, the Wright Brothers changed everything by using bike parts and watching birds.

"Life comes at us very quickly, and what we need to do is take that amorphous flow of experience and somehow extract meaning from it." In this funny, enlightening talk, educational psychologist Peter Doolittle details the importance --...

Axolotls are special salamanders. Not only to they stay in their juvenile form their whole lives, they can regenerate entire limbs! Studying how they do it could change the way we treat human limb injuries.

In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a really cool...

How does cancer know it's cancer? At Jay Bradner's lab, they found a molecule that might hold the answer, JQ1. But instead of patenting it and reaping the profits (as many other labs have done) -- they published their findings and mailed...

News about climate change is often full of doom, guilt, and anxiety. This can make many people reluctant to pay attention to or discuss it. We asked former Vice President Al Gore to help us find a different way to talk about climate change.

Sex therapist Ian Kerner hears about a common problem from his patients: "failure to launch," or the inability to build and maintain sexual momentum. What's the solution? Whether you're looking to reignite the spark in your relationship...

Another aging rock star, another baby, does age have any affect on sperm, or are these little swimmers seemingly viable until death?

Optogenetics may allow us to use light like a remote control for our brains, and treat diseases like retinitis pigmentosa.

In ancient Greece, violent internal conflict between border neighbors and war with foreign invaders was a way of life, and Greeks were considered premier warriors. Sparta, specifically, had an army of the most feared warriors in the...

What can you do when the wheels of justice don't turn fast enough? Or when they don't turn at all? Vivek Maru is working to transform the relationship between people and law, turning law from an abstraction or threat into something that...

We didn't understand how our bodies processed pain until recently. From hot peppers to slamming your hand in a drawer, recent research suggests that pain from various sources can be processed in a surprisingly similar way.

Human beings have been campaigning against inequality and poverty for 3,000 years. But this journey is accelerating. Bono "embraces his inner nerd" and shares inspiring data that shows the end of poverty is in sight … if we can harness...

"Music is so much more than sound simply traveling through the ear," says sign language interpreter Amber Galloway-Gallego. In a spirited performance, musician and activist Madame Gandhi plays two songs -- "Top Knot Turn Up" and "Bad...

Happy Pi Day! We are huge fans of homophones here at SciShow, so we put together a whole bunch of fun facts and tasty tips about PIES! Get it?!