The source of up to half of the Earth's internal heat is completely unknown – here's how to hunt for it | IELTS, ESP, EAP and CALL | Scoop.it
From theconversation.com - August 7, 2017 1:41 AM
A new detector could work out what's causing a heat flow from the Earth's interior. It may even solve the mystery of what powers the Earth's magnetic field.