1. 
A “shadow” of a hand valve wheel on the painted wall of a gas storage tank after the atomic bombing of Hiroshima. Radiant heat instantly burned paint where the heat rays were not obstructed. (via Hiroshima, 64 years ago - The Big Picture)
    High Res

    A “shadow” of a hand valve wheel on the painted wall of a gas storage tank after the atomic bombing of Hiroshima. Radiant heat instantly burned paint where the heat rays were not obstructed. (via Hiroshima, 64 years ago - The Big Picture)