2017-06-02

[public] 482K views, 13.6K likes, 713 dislikes audio only

Stand-up Maths

Use some mathematics to work out how fast a Fidget Spinner spins. In fidgets/second.

Follow-on video by Steve Mould: /youtube/video/G7hh42AgBlQ

Maths and science teachers: please do torment your students with this experiment. All they need is a Fidget Spinner and a phone; the two things they refuse to be without.

I used the SpectrumView app, but there are loads of spectrogram apps out there.

http://www.oxfordwaveresearch.com/products/spectrumviewapp/

The audio the spectrogram recorded is here whynot.

https://soundcloud.com/user-719527707/fidget-spinner-recording

This is the plot on the spectrogram screen showing the max frequency.

https://www.dropbox.com/s/33r45m34h3puslw/fidget-spinner-plot.PNG?dl=0

Thanks to Hugh Hunt for his help with this video. He showed me how to measure speed with a spectrogram.

https://www.youtube.com/user/spinfun

CORRECTIONS:

None yet. Let me know if you spot anything!

Support my videos on Patreon:

https://www.patreon.com/standupmaths

Music by Howard Carter

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/