Browse 553 videos in category Technology
- 1124 views
- 9 comments
Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically…
- 666 views
- 4 comments
LEDs and solar panels are both made of diodes. A diode is just designed to allow electricity to flow in one direction but because we make them out of semiconductors they can do all these other things.
- 669 views
- 6 comments
Dinorwig Power Station, otherwise known as Electric Mountain, is a pumped-storage hydro station in Llanberis, Wales. And yes: it's Britain's largest battery. Here's how it works.
- 497 views
- 4 comments
At least one hundred million people live in desert regions around the world according to the UN, and they survive off of less than 25 cm of rainfall each year, and for many, even that minuscule water supply is under threat as the climate crisis is making dry areas even drier.
So scientists at UC Berkeley have been experimenting with materials that can pull drinking water out of thin air.
- 376 views
- 3 comments