any physics text that uses infinitesimals :^)

wtf why does the stick go through the fence?

Am I blind?

>>7845483
It's deceiving, actually the dog turns its head left so that the lower end of the stick can slide past the post as he walks forward

>>7845483
Just do the dogeometry and you'll see

>>7845500
that's what I thought too but when I looked again the stick went through the post

>>7845562
You can see the top end lurch as it rotates forward as the bottom end makes contact and swings back, you're probably looking too late to see it. Also the bottom end of the stick is hidden by that section of beam which makes it confusing.

>>7845456
Ayy haha
Actual math texts though

>>7845483
Angles man. Also, the original youtube:

https://www.youtube.com/watch?v=O-UVkVG6bC4

And people still think it is magic. Some people should not be allowed online.

>>7845613
I can see better in that video, thanks. I am half blind and deaf, thanks.

>>7845361
bamp

I know you guy's would rather be posting in le epic consciousness/free will/lavaice threads but this is actually about math

>>7847152
nobody?

>>7845361
>High school level
Infinitesimal Calculus (Dover Books on Mathematics) by Henle and Kleinberg
Elementary Calculus: An Infinitesimal Approach (Dover Books on Mathematics) by Keisler

>Undergrad level
Applied Nonstandard Analysis (Dover Books on Mathematics) by Davis
Nonstandard Analysis: Theory and Applications by Arkeryd, Cutland and Henson
Lectures on the Hyperreals: An Introduction to Nonstandard Analysis (Graduate Texts in Mathematics) by Goldblatt

>Grad level
Nonstandard Methods in Stochastic Analysis and Mathematical Physics (Dover Books on Mathematics) by Albeverio, Hoegh-Krohn, Fenstad, and Lindstrom
Non-standard Analysis by Abraham Robinson

>>7849172
Thanks anon :)