Does radioactive dating produce exact results
Notes: The site still exists, but many of the pages seem to be no longer maintained and available and I have not been able to reach the original site developer, Robert Monaghan, who collected and edited the following information from use net postings.
This was restored from a copy I made in November 2003; Bob may have added to or edited this page after that. Industar 61 lens (lanthanum glass) Lens Faults Pages Photo. Maybe some of those bargains you got on EBAY are "hot" in a different sense than you might have thought!
I have integrated this web page on human evolution into an electronic text, " Nature's Holism - Holism.These slightly radioactive elements such as thorium or rare earth elements such as lanthanum were used to produce desired highly refractive glasses.Other uses for rare earth elements in photography include color enhancing filters. Ross' Romancing the Rare Earths for a history of enhancing filters and the use of various rare earth elements therein.Background We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind.Volta's pile was at first a technical curiosity but this new electrochemical phenomenon very quickly opened the door to new branches of both physics and chemistry and a myriad of discoveries, inventions and applications.