태그 : science

4월 20
How your digestive system works

https://www.youtube.com/watch?v=Og5xAdC8EUI&feature=emb_title 00:06 Across the…

4월 10
Are food preservatives bad for you?

00:06 Food doesn’t last. 00:09 In days, sometimes hours, bread goes moldy, apple…

4월 09
Can 100% renewable energy power the world?

Script 00:06 Every year, the world uses 35 billion barrels of oil. 00:11 This massive…