Why are manhole covers round? - Marc Chamberland
- Title:
- Why are manhole covers round? - Marc Chamberland
- Description:
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View full lesson: http://ed.ted.com/lessons/why-are-manhole-covers-round-marc-chamberland
Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there’s another, more compelling reason, involving a peculiar geometric property of circles and other shapes. Marc Chamberland explains curves of constant width and Barbier’s theorem.
Lesson by Marc Chamberland, animation by Pew36 Animation Studios.
- Video Language:
- English
- Team:
- closed TED
- Project:
- TED-Ed
- Duration:
- 03:35
Daban Q Jaff approved Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
zhila mawlood accepted Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
zhila mawlood edited Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
Daban Q Jaff edited Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
Daban Q Jaff edited Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
Daban Q Jaff edited Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
Daban Q Jaff edited Kurdish subtitles for Why are manhole covers round? - Marc Chamberland | ||
Eren Gokce approved Turkish subtitles for Why are manhole covers round? - Marc Chamberland |