# Weird optical illusion

**URL:** <https://boards.straightdope.com/t/weird-optical-illusion/88125>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [October 18, 2001, 2:02am UTC](https://boards.straightdope.com/t/weird-optical-illusion/88125 "2001-10-18T02:02:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Rysdad](https://avatars.discourse-cdn.com/v4/letter/r/7cd45c/32.png) [@Rysdad](https://boards.straightdope.com/u/Rysdad)\
**Post date:** [October 18, 2001, 2:02am UTC](https://boards.straightdope.com/t/weird-optical-illusion/88125/1 "2001-10-18T02:02:51Z")

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[Try this out.](http://ftp.pcworld.com/pub/screencams/illusion.gif)

I’d put this in GQ and ask how it works, but I like the mystery.

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**Author:** ![Glenoled](https://avatars.discourse-cdn.com/v4/letter/g/c0e974/32.png) [@Glenoled](https://boards.straightdope.com/u/Glenoled)\
**Post date:** [October 18, 2001, 2:13am UTC](https://boards.straightdope.com/t/weird-optical-illusion/88125/2 "2001-10-18T02:13:35Z")

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That’s just twisted!! (pardon the pun)

Glenoled

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**Author:** ![Reeder](https://avatars.discourse-cdn.com/v4/letter/r/c6cbf5/32.png) [@Reeder](https://boards.straightdope.com/u/Reeder)\
**Post date:** [October 18, 2001, 2:44am UTC](https://boards.straightdope.com/t/weird-optical-illusion/88125/3 "2001-10-18T02:44:44Z")

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Way cool. My guess is that as your head moves forward the perspective changes and it’s to fast to be a smooth change. Any better guesses?

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**Author:** ![Mudshark](https://avatars.discourse-cdn.com/v4/letter/m/f04885/32.png) [@Mudshark](https://boards.straightdope.com/u/Mudshark)\
**Post date:** [October 18, 2001, 2:52am UTC](https://boards.straightdope.com/t/weird-optical-illusion/88125/4 "2001-10-18T02:52:49Z")

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Thai is cool. Im going to send that to my friends.