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Round Triangles!

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Published on Jan 23, 2012

Why circles are round (and triangles too!)

rotor in a square hole: http://www.youtube.com/watch?v=KUeQug...
more info on reuleaux rotors and other SWEET stuff: http://www.howround.com

minutephysics is now on Google+ - http://bit.ly/qzEwc6
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

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Top Comments

  • Thrilla Whale

    Thrilla Whale 1 week ago

    They see me Reuleauxin'

    They hatin'

    My rotors confuse them 'cuz they're

    Round and pointy.

    

    · 93

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  • ashiqwuzhere

    ashiqwuzhere 3 weeks ago

    1:15 -- WUT ._.

    · 28

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All Comments (1,474)

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  • Namnam54

    Namnam54 17 hours ago

    No... It is the deathly hallows...

    Google it.

    

    ·

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    in reply to landon gregory (Show the comment)
  • landon gregory

    landon gregory 1 day ago

    1:32 Illuminati!?!?

    ·

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    in playlist MinutePhysics
  • Golden Rockefeller

    Golden Rockefeller 1 day ago

    these are the best "draw my life" videos i've ever scene

    

    ·

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    in playlist MinutePhysics
  • KMarr07

    KMarr07 1 day ago

    :40 the beginnings of the flower of life:)

    ·

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  • ToaPohatuNuva

    ToaPohatuNuva 1 day ago

    I like how when you contemplate the definition of "round", you look to more than just mathematics. You don't limit yourself to only talking in terms of physics, which is really awesome. If I were a failing physics student, and I watched your videos and you used only physics terminology and definitions, I would be lost. However, you use all sorts of subjects to make your point, which makes everything easier to understand. You're a Renaissance man, Henry.

    ·

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  • Yunsar Ahmed

    Yunsar Ahmed 1 day ago

    "What about Rowling?"

    ·

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    in playlist MinutePhysics
  • cootjans12

    cootjans12 1 day ago

    square circles!!!

    ·

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  • MrMiniboyss

    MrMiniboyss 2 days ago

    "Earth is round"

    OMG! We must inform the scientist at once to prove this theory!

    ·

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    in reply to ekinothedragon (Show the comment)
  • ekinothedragon

    ekinothedragon 2 days ago

    "Sphere is the most sphereical shape"

    You don't say!

    ·

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    in playlist MinutePhysics
  • Alexander B

    Alexander B 3 days ago

    YUP! I noticed that too :D

    ·

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    in reply to DJDeeMixer (Show the comment)
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