Manhattan Project Shield Window Fragment - SOLD 133g bracelets It is 100% cotton

It is 100% cotton

Swatches may exhibit uneven edges or have areas where the cloth beneath the aluminum doping is visible

This specimen is a rough sapphire from Myanmar’s Mogok Metamorphic Belt

Above: The sky after the meteorite’s descent was captured by artist Pyotr Medvedev

this turtleneck was worn by Steve at the 1991 PC Forum gathering

Manhattan Project Shield Window Fragment - SOLD 133g bracelets It is 100% cottonThis specimen is a 133 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,