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Thumbnail of How drugs affect our perception of time

How drugs affect our perception of time

Published 228 days ago in Science. Submitted by joeman

Thumbnail of Why Do My Eyes Glow Red in Photos?

Why Do My Eyes Glow Red in Photos?

Published 232 days ago in Science. Submitted by Burimi

You know how sometimes your eyes glow bright red in photos, making you look like a scary demon and ruining a priceless family memory? Well, there's a pretty cool reason it happens and ways to stop it!

Thumbnail of How Entropy Powers The Earth (Big Picture Ep. 4)

How Entropy Powers The Earth (Big Picture Ep. 4)

Published 263 days ago in Science. Submitted by thundersnow

This video is about how we don't just need energy to power our lives, we need *low entropy* energy! This is also known as "free energy", and one way of thinking about entropy is as the lack of free energy. The sun provides us with useful, low entropy, energy in the form…
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Thumbnail of Pi (π) unrolled

Pi (π) unrolled

Published 283 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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Stereographic projection

Published 287 days ago in Science. Submitted by thundersnow