Will a falling pencil hit the table? We do the maths!

Do check out Jane Street's Real Numbers:
https://www.janestreet.com/real-numbers

Here is a scan of all the working out:
https://www.dropbox.com/s/e0gg5bc891kny3t/pencil-maths.pdf?dl=0

We have a full break down of the working out for teachers:
http://think-maths.co.uk/standupmaths-videos?yt-pencils#pencils
There are Think Maths free resources for teachers for most of my videos!
http://think-maths.co.uk/standupmaths-videos

CAMERA ISSUE
Yes we did lose the video file from the GoPro filming the working out! So I had to recreate it using a scan of the pages. Which raises a question: which do you prefer? A GoPro pointing at the notes (like from 11:31 onwards) or an animated scan (like up until 11:05)? Let me know your thoughts in the comments!

CORRECTIONS
- Nothing yet! Let me know if you spot anything.

Thanks as always for Jane Street being my principal sponsor.
https://www.janestreet.com/

Thanks to my Patreon supporters who help make these videos possible. Here is a random subset:

Andrew Wieland
Alan McNea
Richard Dickins
Tracy Parry
Aimee Arost
Henry Gustafson

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

Filming and editing by Trunkman Productions
Audio by Peter Doggart
Music by Howard Carter
Design by Simon Wright
MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
Maths book: http://wwwh.umble-pi.com
Nerdy maths toys: http://mathsgear.co.uk/

Видео Will a falling pencil hit the table? We do the maths! канала Stand-up Maths