This is a possible summary:
The video is about the author's experiments with a hypergolic mixture of nitric acid and aniline, which can be used as a liquid rocket fuel. The author shows how the mixture reacts in different sizes and shapes of test tubes, and how it can produce a loud pop and a jet of flame. The author also explains some of the physics behind rocket engines and how they use convergent-divergent nozzles to increase the thrust. The video is sponsored by Nord VPN, a service that protects the user's online data. The author also mentions a book called Ignition by John Clarke, which inspired him to explore liquid rockets, and asks for help in finding hydrazine-based fuels for future projects.
Here are the key facts extracted from the text:
1. The video is sponsored by Nord VPN, which offers 66% off two year plans with the code Nile red.
2. The video explores some hypergolic mixtures of nitric acid and aniline, which are used in liquid propelled rockets.
3. The video shows how different tube sizes and shapes affect the ignition delay and the firing of the mixture.
4. The video mentions a book called Ignition by John Clarke, which inspired the project.
5. The video plans to explore more rocketry in the future, but has trouble getting hydrazine based fuels.