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Season 2021 · Episode 17 of 35 Aired Jun 16, 2021

Can Space Be Infinitely Divided?

Wed, Jun 16, 2021
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Next: S2021 E18

How many times can I half the distance between my hands? Assume perfect coordination and the ability to localize my palms to the quantum level. 15 halvings gets them to within a cell’s width. 33 to within a single atom, 50 and they’re a proton’s width apart. Half the distance 115 times and they’re a single Planck-length apart - 1.6x10^-35 meters. Surely we can keep going - .8, .4, .2 x10^-35 m? Bizarrely, those distances might not even exist in any meaningful way.

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Airs

Wed, Jun 16, 2021

Show

PBS Space Time

433 episodes

Episode

S2021 · E17

in PBS Space Time