T HE USE of the newly invented atomic bomb at the end of the second world war changed geopolitics, physics, the nature of the ...

This video was produced in collaboration with OER Project. OER Project offers free, comprehensive, and fully supported social studies curricula for middle- and high-school teachers and their students.

Departing in the predawn darkness of Aug. 6, 1945, a modified B-29, designated with radio call sign ‘Dimples 82’, was carrying a single bomb. Enola Gay was about to change the world. Approximately a ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

The threat of nuclear retaliation keeps most countries in check, but that doesn't mean we've seen the end of nuclear ...

On August 6, 1945, the United States dropped an atomic bomb on Hiroshima, Japan. That first-ever use of an atomic weapon killed an estimated 140,000 people in all, most of whom were civilians. Three ...

Nuclear effect The deformed shape of the ytterbium-173 nucleus (right) makes it possible to excite the clock transition with a relatively low-power laser. The same transition is forbidden (left) if ...