Thermoluminesence (TL) and Optically Stimulated Luminesence (OSL) are related techniques which measure when objects were last heated (TL) or when buried deposits were last exposed to light (OSL).
TL and OSL are known as 'electron trap' techniques.
Just running the numbers on the physics of the glass, they found that the temperature change needed to break borosilicate glass is more than 300 degrees F, while soda lime silicate glass will shatter after a change of just 99 degrees F.
Water boils at 212 degrees F, so you can see how pouring boiling water into a soda lime silicate measuring cup would produce explosively different results than pouring it into a borosilicate one.
There have been a handful of sites from Brazil and Chile to the Great Plains of the U. suggesting human activity up to 40,000 years ago, but academic opinion on the legitimacy of those sites is deeply divided.The switch was, its makers say, to boost the glassware’s ability to withstand being dropped.Several materials scientists, though, have concluded that various lines of soda lime silicate cookware leave something to be desired.In this article, shows how scientists consistently suppress and marginalise new knowledge that conflicts with established positions and argues that a paradigm shift is underway – a shift that will require us to reconsider everything we’ve been taught about the peopling of the Americas and about the very origins of civilization.In March 2017 the National Geographic Society and the Smithsonian Institution, those bastions of scientific orthodoxy, highlighted the remarkable achievements of two scientific rebels, one retired and the other deceased, confessing that multiple injustices had been done to both and that the “toxic” way in which they had been treated by their professional colleagues had “poisoned” scientific progress.