This presentation is easily understood by lay audiences with some  technical information for those more exposed to creation science. It covers radioactivity in carbon-14 in coal and diamonds and explains how the experimental evidence clearly and severely limits the age of the earth.

Presenter: Russ Humphreys, PhD, Physics

Dr Russ Humphreys BIO

Arizona Christian University

Science Building, Room 206

2625 East Cactus Road

Phoenix, AZ 85032