Memolition - Explore. Dream. Discover.

Why Is It Hot Underground?

The deeper we go underground, the hotter it gets. For every 1km you go down the temperature rises by 35 degrees Celsius. Have you ever been curious why it that? Then wonder no more! See this video and find out.

Earth

Time lapse sequences of photographs taken by the crew of expeditions
28 & 29 onboard the International Space Station from August to October,
2011, who to my knowledge shot these pictures at an altitude of around 350 km.
All credit goes to them.