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Explore the chemistry behind what makes kevlar so strong, and how this essential synthetic fiber was invented.

RadAway is arguably the most important chemical in the whole FALLOUT universe. But can you really remove radiation like you do in the games?

If you look at a copy of the periodic table, you might notice that basically every element after lead is labelled as radioactive.

For thousands of years, water was thought to be an element. That is, until some of the greatest chemists in the world managed to crack it open.

Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff.

Water can dissolve more substances than anything else on earth...so why doesn't it dissolve everything away?

See the first laboratory on Earth - Blombos Cave. Here our ancestors conducted the first chemistry experiments.

You've all studied the periodic table in school, but we are sure you're teachers never talked about elements like this!

There's a concept that's crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It's entropy, and it's notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy.

If you look through your glasses, binoculars or a window, you see the world on the other side. How is it that something so solid can be so invisible? Mark Miodownik melts the scientific secret behind amorphous solids.

You stick cookie dough into an oven, and magically, you get a plate of warm, gooey cookies. Except it's not magic; it's science. Stephanie Warren explains via basic chemistry principles how the dough spreads out, at what temperature we can kill salmonella, and why that intoxicating smell wafting from your oven indicates that the cookies are ready for eating.

Is a flame really a plasma? Well it depends on your definition of plasma, but there are certainly ions in a flame, formed as molecules collide with each other at high speed, sometimes knocking electrons off of their atoms.

A model boat floating on sulfur hexafluoride (gas significantly denser than air) at the Physikshow of the University of Bonn!

This is a classic chemical reaction. It's called the iodine clock reaction. There are several variations of how this chemical reaction can be performed using different chemicals than the ones I used in the video. You can order clock reaction kits from several science related websites. You can also use simple store bought chemicals like vitamin C, iodine, hydrogen peroxide and starch. A quick internet search will turn up multiple ways of performing the experiment.

Gemesis diamonds are mostly yellow due to the Nitrogen in the atmosphere getting inside the crystal during the growing process. Apollo diamonds can be created in all colors including colorless depending on how much impurity is introduced in the growing chamber. e.g. add boron to make blue diamonds.