What makes these random spirals Fibonacci? They don't seem to meet the definition at all.

Congratulations! Your comment on Sum of Fibonacci Numbers Trick has just received enough votes from the community to earn you 1 Power Point. Thank you for your quality contribution to VideoSift.

This achievement has earned you your "Silver Tongue" Level 1 Badge!

I'm not under the impression anyone is saying different. It's a zoetrope using a sculpture with a Fibonacci pattern. Two separate things. Neither dependent on the other.

Other *related Zoetropes.

Fibonacci Zoetrope 3D Printed Sculptures has been added as a related post - related requested by eric3579 on that post.

Fibonacci Zoetrope 3D Printed Sculptures has been added as a related post - related requested by eric3579 on that post.

Fibonacci Zoetrope 3D Printed Sculptures has been added as a related post - related requested by eric3579 on that post.

Nice, but kind of really simple and the fibonacci thing is b.s.

Any repeating pattern would display these kind of effects, creeping forward and backwards when spun.

There are some interesting examples when used with water, making the water appear static, will post some links when I get a moment

Tags for this video have been changed from 'vihart, math, doodle, spiral, fibonacci, plants, flowers, Doodling in Math' to 'vihart, math, doodle, spiral, fibonacci, plants, flowers, Doodling in Math, vi hart' - edited by messenger

Tags for this video have been changed from 'vihart, math, doodle, spiral, fibonacci, plants, flowers' to 'vihart, math, doodle, spiral, fibonacci, plants, flowers, vi hart' - edited by messenger

Tags for this video have been changed from 'vihart, math, doodle, spiral, fibonacci, plants, flowers' to 'vihart, math, doodle, spiral, fibonacci, plants, flowers, vi hart' - edited by messenger

Tags for this video have been changed from 'vihart, math, Pineapple, nickelodeon, spongebob, fibonacci, snail' to 'vihart, math, Pineapple, nickelodeon, spongebob, fibonacci, snail, vi hart' - edited by messenger

Thanks for the quality.

In reply to this comment by messenger:
*quality *talks

It's her voice, and how sexy it is. And she's really really smart. And cool. She might be a loud chewer though, you never know.>> ^BoneRemake:

I find her voice sexy. I dunno what it is.

For the science of why the petals emerge in the patterns they do:

http://videosift.com/video/Doodling-in-Math-Spirals-Fibonacci-and-Being-a-Plant-pt-3