Short20261 min1920×1080

Lochkamera (Glühfaden)

Rhetos

At the Wikimedia Commons

About

The effect can be explained by geometrical optics. If followed up it leads to a camera obscura.

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Wikimedia Commons, in Wikimedia Commons
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CC BY-SA 4.0, as the Wikimedia Commons states it.
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Creative Commons Attribution-Share Alike 4.0
Credit
Rhetos
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