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Doodling in Math Class: Spirals, Fibonacci, and Being a Plant [2 of 3]

Vihart Vihart·69 videos
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Uploaded on Jan 9, 2012

Part 1: http://youtu.be/ahXIMUkSXX0
Part 3: http://youtu.be/14-NdQwKz9w
More on Angle-a-trons: http://www.youtube.com/watch?v=o6W6P8...

Here is a program that draws plant leaves at whatever angle you want: http://www.khanacademy.org/cs/plant-l...

Note: Beautiful spirally non-Fibonacci pinecones are very rare! If you find one, keep it.

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    Standard YouTube License

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Top Comments

  • Abdul ElTawil

    Abdul ElTawil 1 month ago

    He is also in our hearts.

    · 48

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    in reply to Alain Niyibizi (Show the comment)
  • puppylubber123

    puppylubber123 1 month ago

    hmm... I'm wondering how you get your information if you don't pay attention in math... naw im just messing with ya. These are awesome btw

    · 16

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Video Responses

All Comments (1,849)

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  • Michelle Lonsdale

    Michelle Lonsdale 1 day ago

    She speeds them up I THINK! If not, then WOW she dos talk fast!

    ·

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    in reply to lluvank (Show the comment)
  • lluvank

    lluvank 3 days ago

    You do good videos but you talk too fast!

    ·

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  • Friendios3

    Friendios3 5 days ago

    our math teacher made us watch this. most of us were like wahhhh? speak so fast.... well english isn't our first. all and all, i liked your vids!

    ·

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  • soccershootout07

    soccershootout07 5 days ago

    i have yet to fully understand one of your videos.... i literally blanking stare at the screen,,, haha but these vids r really cool!

    ·

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  • kate lynahm

    kate lynahm 1 week ago

    yes.

    ·

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    in reply to 10babiscar (Show the comment)
  • 10babiscar

    10babiscar 2 weeks ago

    at 4:32 she says if you use skinner petals it takes 8 to go round twice so if you used even skinnier petals would that just mean a higher Fibonacci number?

    ·

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  • Alisha Plant

    Alisha Plant 2 weeks ago

    I am a plant. I'm in math :)

    ·

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  • Emma Fine

    Emma Fine 2 weeks ago

    Holy Shit

    ·

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  • butterflycaught900

    butterflycaught900 2 weeks ago

    quoting him only proves i don't try to pass his thoughts off as my own opinion :D

    ·

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    in reply to love6uk (Show the comment)
  • love6uk

    love6uk 2 weeks ago

    Ok. I'm gonna end here by saying that yes it's wonderful to discover, I love it too but it might also be worth setting up some meditation techniques early on because over thinking can often lead to mental illness if there is no off switch. Sometimes its nice just to be..........or not to be....whichever your preference....being a left and right brained hemisphere creature and all that.

    Quoting some dude named Richy F doesn't make it true. Its just another theory.

    I think you're alright though x

    ·

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    in reply to butterflycaught900 (Show the comment)
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