Uploaded September 2019 | Updated September 2026, 1 day ago
In this video, I show you how to solve the Einstein field equations for the Ellis drainhole, and wormhole. These are the first ever discovered traversable wormhole exact solutions ever discovered.
Superfluid Helium Resonance Experiment video:
youtu.be/unUNQNmuvUQ
Quantum Field Theory Lecture Series:
youtube.com/playlist?list=PLSpklniGdSfSsk7BSZjONcfhRGKNa2uou
In this video, I show you how to solve the Einstein field equations for the Ellis drainhole, and wormhole. These are the first ever discovered traversable wormhole exact solutions ever discovered.
Superfluid Helium Resonance Experiment video:
youtu.be/unUNQNmuvUQ
Quantum Field Theory Lecture Series:
youtube.com/playlist?list=PLSpklniGdSfSsk7BSZjONcfhRGKNa2uou










![Annoying Ass Spinor Spherical Harmonics Identity | Quantum Mechanics
In this video, I show how to do a tricky homework problem that I had a while ago.
My Quantum Mechanics Lecture Series:
https://www.youtube.com/playlist?list=PLSpklniGdSfSsAFCzO-YWGlJ4TNv8sMdy
Typo: At 5:43, it should be Y(l , m+½) = (Sqrt { [ ( 2l + 1 ) ÷ 4π ] ⋅ ( l − m − ½ )! ÷ ( l + m + ½ )! } )⋅[exp i(m+½)φ]⋅P(l , m+½) Annoying Ass Spinor Spherical Harmonics Identity | Quantum Mechanics](https://i.ytimg.com/vi/ssdQWpWru-E/mqdefault.jpg)