Wednesday, September 30, 2020

Autumn 2020


1 and 8 Oct 2020

Kalpa Madhava 

How to solve quaternionic quadratic equations.

Part 1 and 2.


Wednesday, September 16, 2020

Autumn 2020


17 and 24 Sep 2020

Jerzy Kocik

Taking square roots in higher dimensions

 -- spins, polarization, and a little metaphysics

[Recording of part 1]  [Recording Part 2]

Borzu shared the link with this cool video on related toy 
and this 3D-printable file .  Check it out!

See also Copernicus Theorem at Wolfram, at Cut-the-knot, at Mathematics.
Cf. Tusi couple.





 




Wednesday, September 9, 2020

Autumn 2020

10 Sep 2020

K.V. Shajesh 

A comment on 
"Delayed Choice and Indeterminate Past"
by Mohammad Sayeh

Shajesh suggeted:






Tuesday, September 1, 2020

Autumn 2020

3 Sep 2020

Mohammad Sayeh

Delayed Choice and Indeterminate Past

[Recording]