Geometry of involute gears | what is an involute | module | pitch circle | simply explained
15:36
Meshing of involute gears | line of action | contact ratio | pitch point | center distance
16:27
Profile shift of involute gears | avoiding undercut | derivation
8:57
How to identify unknown gears?
17:33
How does a cycloidal gearbox work? | Structure and function simply explained | parametric equation
28:43
The ALMOST Platonic Solids
40:06
What is Quantum Tunnelling?
29:42
Why 4d geometry makes me sad
6:40