He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory.Radiometric dating--the process of determining the age of rocks from the decay of their radioactive elements--has been in widespread use for over half a century.Many are also unaware that Bible-believing Christians are among those actively involved in radiometric dating.The Virtual Courseware Project produces interactive, online simulations for the life science laboratory or for earth science field studies.
Finding these fossils in a rock layer give an approximate age for the layer.
While the Web provides a vast resource of declarative information (some of it multimedia), far less common are Web sites where instructors can obtain effective inquiry-based tools for teaching science.
The Virtual Courseware Project at California State University, Los Angeles addresses this need through the development and implementation of interactive, web-based simulation activities that emphasize the scientific methods of inquiry: making observations, formulating hypotheses, designing experiments, collecting and analyzing data, and arriving at conclusions based on these analyses.
His Ph D thesis was on isotope ratios in meteorites, including surface exposure dating.
He was employed at Caltech's Division of Geological & Planetary Sciences at the time of writing the first edition.