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Why do whole oranges float, but peeled oranges sink?

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 Math   |   Science
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Go check out the courses on Brilliant!
https://brilliant.org/standupmaths

Be one of the first n people (for n = 200) to sign-up for a free Brilliant account and get 20% off if you upgrade to paid membership.

Here is the original QI tweet:
"A whole orange will float on water, but a peeled orange will sink."
https://twitter.com/qikipedia/status/970177018561286144

Orange: 246.3g
Peel: 97.9g

Orange displacement: 231.2g
Peel displacement: 109.4g

Total Orange: 344.2g
Total displacement: 340.6g

If you make your own measurements with an orange: send them in to me! matt@standupmaths.com


CORRECTIONS
- None yet. Let me know if you spot anything!

Thanks to my Patreon supporters who make these videos (and currently: projects to find psychic pets) possible. Here is a random subset:

Lachlan Churchill
William Clark
Scott Rosenblatt
Ivik Injerd
David Kidd

Support my channel and I can make more videos:
https://www.patreon.com/standupmaths

Music by Howard Carter
Filming and editing by Matt Parker
Design by Simon Wright


MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
Maths book: http://makeanddo4D.com/
Nerdy maths toys: http://mathsgear.co.uk/

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