TIL the Nazis tried to make a sun gun, or sonnengewehr. They would launch a 100-meter-wide concave mirror into space and use it to reflect sunlight onto the enemy, burning cities, boiling reservoirs and (pretty much) melting people.

TIL the Nazis tried to make a sun gun, or sonnengewehr. They would launch a 100-meter-wide concave mirror into space and use it to reflect sunlight onto the enemy, burning cities, boiling reservoirs and (pretty much) melting people.

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