Explaining concrete while getting buried in it
AdultsConstructionHistoryScience...Concrete = cement + sand + gravel. Cement is the most important man-made material on Earth.
Primitive Technology: Making Charcoal (3 Different Methods)
AdultsConstructionLifeNature...About This Video:
With more iron smelting experiments coming up, I demonstrate 3 different methods to make charcoal, ranked easiest to hardest.
Why Aliens Might Already Be On Their Way To Us
AdultsLifeScienceSpaceThe universe is magnificent and vast. Hundreds of billions of galaxies, trillions of stars, and even more planets. If even the tiniest fraction are habitable, then the Universe should be teeming with life. And yet we see nothing, only vast emptiness. Where is everyone else?
How NASA Reinvented The Wheel
AdultsConstructionCreativityScience...A huge thanks to everyone at NASA Glenn Research Center for having us at the SLOPE Lab, showing their work on this indestructible tire, and helping with the science and animation.
How Everyday Interactions Shape Your Future
AdultsHumanLifeSelf...A few words can change the course of a life; they have the power to shrink, expand or transform someone's identity -- even your own. Social psychologist Mesmin Destin explores how everyday interactions and experiences play a powerful part in who we become, sharing the key moments and messages that can inspire us to grow into our best selves.
How to master your sense of smell
AdultsBiologyHumanScience...Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks.