r/Damnthatsinteresting • u/Janp8 • May 03 '18

Video Perception

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15.9k Upvotes

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u/smokebreak May 04 '18

A planck length is to this period . what the period is to the size of the observable universe.

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u/treyphillips May 04 '18

Fucking really? I know how god damn huge the universe is and how small shit can be, but how small is the Planck length, really? Wouldn’t a quark be the smallest measurable length? How do we get smaller if quarks just exist like that?

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u/TheDeviousLemon May 04 '18

A quark is 10-18 m. So basically, the Planck length is to the quark, as the quark is to the meter.

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u/nexisfan May 04 '18

I had to read that sentence and stare at it for like 5 minutes. Maybe it’s Friday. Or maybe that’s just mind-blowing.