Links for April 4th

Here are some links I found interesting this week.

combinatorics - What is the number of squares in an $Ntimes M$ grid, if the squares don't have to be aligned with the grid's axes? - Mathematics Stack Exchange

Rebellion (2011 film) - Wikipedia

Why do human beings keep getting diseases from bats? | 21st Night

Two Hundred Fifty Things an Architect Should Know — R / D

Beep Boop! Announcing “use-sound” · Josh W Comeau

Introduction to tangzhong | King Arthur Flour

An integration loop

Regalis Foods

Signaling as a Service « julian.digital

David Mumford | Can one explain schemes to biologists

Yutaka - Evening Star - YouTube

JSAV · The JavaScript Algorithm Visualization Library

Secret iPad