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Thumbnail of Pi (π) unrolled

Pi (π) unrolled

Published 255 days ago in Science. Submitted by Burimi

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/.1j6…
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Thumbnail of Stereographic projection

Stereographic projection

Published 259 days ago in Science. Submitted by thundersnow

Thumbnail of Interview with a 13 year old physicist

Interview with a 13 year old physicist

Published 259 days ago in Science. Submitted by Judge-Jake

A little pretentious? Maybe? But well worth a listen.

Thumbnail of Why Doesn't Time Flow Backwards?

Why Doesn't Time Flow Backwards?

Published 266 days ago in Science. Submitted by thundersnow

Thumbnail of The 1995 Hubble Photo That Changed Astronomy

The 1995 Hubble Photo That Changed Astronomy

Published 271 days ago in Science. Submitted by Jabafara