01/27/12

Permalink The First Millisecond of a Nuclear Explosion Is the True Face of Atomic Death

This is fascinating, a nuclear explosion from the Tumbler-Snapper tests performed in Nevada during 1952. It looks different from all nuclear explosions you've seen because it's what it looks like one millisecond after detonation. It looks like a skull by Tim Burton.

The face of atomic death just one second away from unleashing its absolute destruction. Only one millisecond after the bomb explodes, this 65.6-foot (20 meters) ball of fire appears in midair, with spikes that look like rotten teeth or stalactites of fire (called the rope trick effect). The explosion was captured by a Rapid Action Electronic camera—a high speed device designed to photograph nuclear explosions just milliseconds after ignition.

What's a Rapid Action Electronic camera? - The rapatronic camera, as it is called, was created by Harold Edgerton in the 1940s using two polarizing filters and Kerr cell instead of a shutter, which is too slow for this job. A Kerr cell is a panel that changes its polarization depending on the voltage applied. This acts as a very high speed shutter, which allows the perfect exposition to capture this moment.

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