The Core of the Earth
Into The Heart of Our World
A Journey to the Center of the Earth: A Remarkable Voyage of Scientific Discovery
David Whitehouse. Multco Hillsdale . 551.11 w593i 2016
Also ...
- Journey to the Centre of the Earth / A Remarkable Voyage of Scientific Discovery into The Heart of Our World
- Journey to the Centrer of the Earth / A Scientific Exploration into the Heart of Our Planet
http://davidwhitehouse dot com/journey-centre-earth (sorry, my wiki software doesn't like the string wh---house.com
- p8 tunnel to center of the Earth, free fall in 21 minutes
- er, no, unless you drop from the poles. The Earth rotates, and you start out moving east with a velocity of cos(latitude)*465 m/s with a specific angular momentum of approximately 3e9 m2/s. That angular momentum corresponds to a perigee radius of around 260 kilometers deep inside the "reduced gravity" core of the Earth.