Could I Dig a Hole Through the Earth?

Have you tried to dig a deep hole? So deep that you could dig all the way to the other side of the Earth? It’s pretty hard, and lots of people have tried. So what’s stopping us from digging through the Earth? It has something to do with layers and a lot of heat!
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SOURCES:
http://www.colorado.edu/physics/phys2900/homepages/Marianne.Hogan/inside.html
http://pubs.usgs.gov/gip/dynamic/inside.html
http://science.nationalgeographic.com/science/earth/inside-the-earth/
http://www.ngkids.co.uk/science-and-nature/structure-of-the-earth


Images:
Cracked Ground: https://commons.wikimedia.org/wiki/File:Crack_in_the_ground_caused_by_the_earthquake,Kogaishima,Katori-city,Japan.jpg
https://commons.wikimedia.org/wiki/File:Roaddamage59quake.JPG

Borehole: https://commons.wikimedia.org/wiki/File:%D0%9A%D0%BE%D0%BB%D1%8C%D1%81%D0%BA%D0%B0%D1%8F_%D1%81%D0%B2%D0%B5%D1%80%D1%85%D0%B3%D0%BB%D1%83%D0%B1%D0%BE%D0%BA%D0%B0%D1%8F_%D1%81%D0%BA%D0%B2%D0%B0%D0%B6%D0%B8%D0%BD%D0%B0.jpg

Видео Could I Dig a Hole Through the Earth? канала SciShow Kids