keyboard_arrow_up
play_arrow

How do bulletproof vests work? - Max G. Levy

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

Why Does Everything Decay Into Lead

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

How We Learned That Water Isn't An Element

AdultsEducationScienceChemistry
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.
play_arrow

Why Water Dissolves (Almost) Everything

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