Neil deGrasse Tyson
@neiltyson · 14 окт. 2019 г.
Christopher Columbus took three months to cross the Atlantic in 1492.
The International @Space_Station takes 15 minutes.
Elon Musk
@elonmusk
Most people aren’t aware that orbit (and “zero” gravity) is all about horizontal speed, not altitude. A spacecraft needs to travel about 25 times the speed of sound to stay in space.
20:41 · 14 октября 2019 г. · 0 просмотров
361
961
15,5 тыс.