Optical illusions

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Pyrrho
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Optical illusions

Post by Pyrrho » Sun May 06, 2018 12:20 pm


The flash of light you saw in the sky was not a UFO. Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.

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Witness
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Re: Optical illusions

Post by Witness » Wed May 09, 2018 1:53 am

Image

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Grammatron
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Re: Optical illusions

Post by Grammatron » Mon May 21, 2018 7:44 am

[quote="pillory"]jokes aren't funny....seriously thinking......

seriously thinking might be funny....but it's not joke[/quote]

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Rob Lister
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Re: Optical illusions

Post by Rob Lister » Thu Jun 14, 2018 11:18 am


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Re: Optical illusions

Post by Witness » Mon Jun 18, 2018 11:41 pm

The afterimage trick: