PBS Space Time

PBS Space Time - Season 2021 Episode 9 Zeno's Paradox & The Quantum Zeno Effect

2025-09-04 48 minutes.
10.00 1 votes

Season - Episode

2024 Season 2024 Jan 10, 2024
2023 Season 2023 Jan 11, 2023
2022 Season 2022 Jan 12, 2022
2021 Season 2021 Jan 12, 2021
2020 Season 2020 Jan 06, 2020
2019 Season 2019 Jan 09, 2019
2018 Season 2018 Jan 10, 2018
2017 Season 2017 Jan 04, 2017
2016 Season 2016 Jan 06, 2016
2015 Season 2015 Feb 11, 2015
1 Season 1 Feb 11, 2015
0 Season 0 Apr 10, 2017

Overview

“A moving arrow is at rest.” This is obviously a nonsensical contradiction. But Zeno, a Greek philosopher famous for his metaphysical trolling, devised a paradox whose conclusion is just this. Here’s how it goes: if you look at an arrow flying through the air at any instantaneous snapshot in time, the arrow doesn’t travel any distance. If time is composed of an infinite number of these snapshots, and the arrow doesn’t move in any of them, then the arrow is at rest during the entirety of its flight. The moving arrow is at rest.

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Popularity 1.1296
Language English