Why shadows (almost) always trace out hyperbolas (but it depends on where you live).
14:45
The applications of hyperbolic trig | Why do we even care about these things?
12:52
Why slicing a cone gives an ellipse (beautiful proof)
21:07
The History of Engineering (in exactly 20 minutes)
13:15
What your teachers (probably) never told you about the parabola, hyperbola, and ellipse
28:09
How Does Starlink Internet Work?
29:57
Euler's Formula Beyond Complex Numbers
27:26
This open problem taught me what topology is
17:20