TIL "heat from radioactive decay contributes about half of Earth’s total heat flux." http://www.nature.com/ngeo/journal/v4/n9/abs/ngeo1205.html http://www.natu

TIL "heat from radioactive decay contributes about half of Earth’s total heat flux." http://www.nature.com/ngeo/journal/v4/n9/abs/ngeo1205.html http://www.nature.com/ngeo/journal/v4/n9/abs/ngeo1205.html http://blogs.scientificamerican.com/observations/2011/07/18/nuclear-fission-confirmed-as-source-of-more-than-half-of-earths-heat/ http://blogs.scientificamerican.com/observations/2011/07/18/...