Pi (π) unrolled

Illustrates (without any audio) the meaning of π (pi) by rolling a wheel of 1 unit in diameter across an axis of 4 units, marking the axis at π, the point where the wheel completes a full rotation. This video is constructed from a GIF © John Reid https://wmfsl.org/.1j6yVE8

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Comments

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Comment rated too low. Show this comment

-5 1. curator commented 4 years ago

to bad one can only once downvote a video
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-2 3. Scotsman50 commented 4 years ago

glad i watched this, I will sleep better tonight now. Shhheeeessshhhhhh.
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+2 4. Natan_el_Tigre commented 4 years ago

Reminded me of ST Math, which is a fabulous method of learning math without the barrier to entry of language. This is perfect for kids (great for adults too; try it and see!) because learning math by way of language can be tricky (and typically a turn off) due to the fact that all skills are learned in parallel. 8-)

https://www.youtube.com/watch?v=7g8pmwLuZxM

More (i): http://www.mindresearch.org/stmath
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-2 5. torbengb commented 4 years ago

What is this, Snotr for 5 year olds?
What is the purpose of this video?
Why did I watch it?

So many questions, so few answers 8-)
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+6 6. Judge-Jake commented 4 years ago

Well I liked it , especially the music. O:)
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+2 7. thundersnow commented 4 years ago

I also liked it.
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+1 8. ermini commented 4 years ago

Why is this down voted? It's a good way to explain it!
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0 9. drunkmonk commented 4 years ago

Great video! So that's how it works. If I knew it, I had totally forgot about how it works.