The hypersphere
![](https://i.ytimg.com/vi/2s4TqVAbfz4/mqdefault.jpg)
26:19
Perfect Shapes in Higher Dimensions - Numberphile
![](https://i.ytimg.com/vi/e1dOnqCu9pQ/mqdefault.jpg)
16:24
It really seems like our universe could be part of a hypersphere, but... it's probably not
![](https://i.ytimg.com/vi/piJkuavhV50/mqdefault.jpg)
29:42
Why 4d geometry makes me sad
![](https://i.ytimg.com/vi/SwGbHsBAcZ0/mqdefault.jpg)
22:56
Visualizing 4D Pt.1
![](https://i.ytimg.com/vi/_4ruHJFsb4g/mqdefault.jpg)
7:52
What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract
![](https://i.ytimg.com/vi/d4EgbgTm0Bg/mqdefault.jpg)
31:51
Visualizing quaternions (4d numbers) with stereographic projection
![](https://i.ytimg.com/vi/iiGe2x8t6mA/mqdefault.jpg)
12:21
What would we see if we lived on a hypersphere?
![](https://i.ytimg.com/vi/Vh28oRHmDC8/mqdefault.jpg)
24:06