3 ms·
This semi-related TED talk also describes Yakhchal and describes a different, local technique of ice production (as opposed to faraway mountains): "How we can
by HillaryBriss 8y ago
This semi-related TED talk also describes Yakhchal and describes a different, local technique of ice production (as opposed to faraway mountains):
"How we can turn the cold of outer space into a renewable resource"
https://www.youtube.com/watch?v=7a5NyUITbyk https://www.youtube.com/watch?v=7a5NyUITbyk
- mncharity 8y agoThanks! I've been playing with science education content around temperature. 'The universe was once as bright hot as the Sun, but it's been expanding, and is now dark cold. So very cold. The Sun is still bright hot. So very hot. In between, the Earth spins, mixing too hot and too cold. The atmosphere shades us from the hot Sun, and insulates us from the dark cold. Ground and water [buffer the night]. If Earth was much further from the Sun [atmosphere becomes a few feet of snow].' And so on [closer to Sun; non-spinning and Mercury; no atmosphere and lunar temps; more atmosphere and Venus; less buffered desert; etc]. Sort of using a story frame of Sun vs space for teaching temperature in primary school. Raman's work ties in nicely.