In what may be the warmest Winter Olympics on record, Sochi looks more like SoCal by the day. With few real snowflakes to blanket Sochi's slopes, our latest episode explains how science keeps the Winter Olympics alive with artificial snow.

ที่มา : http://cen.acs.org

ลิงค์ : https://youtu.be/ftMFMlk6FlA

อัพโหลดโดย : CENOnline