MathLapse: Constructions by pin-and-string: conics | Construções de fio esticado: cónicas
![](https://i.ytimg.com/vi/pKHWzmxw_NI/mqdefault.jpg)
5:16
The math of the shells | A Matemática das conchas
![](https://i.ytimg.com/vi/LBgIWQcC6lM/mqdefault.jpg)
4:49
All the possible polygons!
![](https://i.ytimg.com/vi/8nPMlW5NZSo/mqdefault.jpg)
13:15
What your teachers (probably) never told you about the parabola, hyperbola, and ellipse
![](https://i.ytimg.com/vi/pQn3ZTVSGu4/mqdefault.jpg)
7:40
Pentagram Construction.
![](https://i.ytimg.com/vi/pQa_tWZmlGs/mqdefault.jpg)
12:52
Why slicing a cone gives an ellipse (beautiful proof)
![](https://i.ytimg.com/vi/oKYW5gKeOWc/mqdefault.jpg)
1:00:01
Geometric Bright Neon Triangular Background video | Footage | Screensaver
![](https://i.ytimg.com/vi/7GTVpMpdgmc/mqdefault.jpg)
8:39
Gisele Bündchen on modeling, divorce, and her true self
![](https://i.ytimg.com/vi/KQzMfMLsm18/mqdefault.jpg)
13:06