Where does gold come from? - David Lunney
28
3
685 Lượt xem·
10/08/15
Trong
生活
View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclysmic stellar explosions called supernovae. CERN Scientist David Lunney outlines the incredible journey of gold from space to Earth. Lesson by David Lunney, animation by Andrew Foerster.
Cho xem nhiều hơn
0 Bình luận
sort Sắp xếp theo