video thumbnail 10:22
Why do whole oranges float, but peeled oranges sink?

2018-07-06

[public] 201K views, 8.71K likes, 88.0 dislikes audio only

channel thumbStand-up Maths

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/


The Change in Density
/youtube/video/FF87hs1doiM?t=66.629997
The Density of the Peel
/youtube/video/FF87hs1doiM?t=191.07001
Displacement Technique
/youtube/video/FF87hs1doiM?t=235.53
Mass of the Water Displaced by the Orange
/youtube/video/FF87hs1doiM?t=326.569
Stand-up Maths I do mathematics and stand-up. Sometimes simultaneously. Occasionally while being filmed. (It's quite the Venn diagram.) Principle channel supporter: Jane Street https://www.janestreet.com/ http://standupmaths.com http://twitter.com/standupmaths
/youtube/channel/UCSju5G2aFaWMqn-_0YBtq5A
The Genius Geometry of the James Webb Space Telescope 186,829 views
/youtube/video/os0a5au_3Mo