Manhattan Project Shield Window Fragment - 125g rockinaboxfulgurite “The Absolute Chronology and Thermal

“The Absolute Chronology and Thermal Processing of Solids in the Solar Protoplanetary Disk

Nature's Ghosts: Confronting Extinction from the Age of Jefferson to the Age of Ecology

Glyptodons used their claws and tails to ward off attackers

This specimen is a selection of door frame which was removed from the house after the Harrisons' departure

Above: A Large Otodus specimen in hand

Manhattan Project Shield Window Fragment - 125g rockinaboxfulgurite “The Absolute Chronology and ThermalThis specimen is a 125 gram fragment of a leaded glass shield window installed in the T Plant (221 T) Plutonium Recovery Building, the first and largest of two production bismuth phosphate chemical separations plants used to extract plutonium from fuel rods irradiated in the Hanford Sites reactors. The Plutonium produced here was used in both the Trinity test on July 16, 1945, and in the "Fat Man" atomic bomb used over Nagasaki, Japan on August 9,