The video is about an experiment where fireworks are submerged in liquid nitrogen and then lit to see how they react. The experiment is divided into three parts: smoke flares, artillery shells, and aerials.
Initially, the smoke flares are lit without being frozen, and they produce a slow and steady burn with beautiful colors. When they are submerged in liquid nitrogen, the reaction is slowed down, and the smoke is thicker and more condensed. The artillery shells are also lit without being frozen, and they shoot up high and explode. When frozen, they only shoot up about half the height and produce a smaller explosion.
The aerials are submerged in liquid nitrogen and then lit, but the fuse stops just short of the container and doesn't light off the fireworks. When the fuse is relit, one aerial shoots off but only goes about 20 feet in the air, lands on the ground, and spins out. The gunpowder falls out, and it seems like it tried to light off but didn't actually explode due to the cold.
The experiment ends with the question of how to dispose of the remaining fireworks, and the host suggests saving them for a future video where they will be combined into a giant crackle ball experiment.
Here are the key facts extracted from the text:
1. The experiment involves dipping fireworks into liquid nitrogen to see how they react.
2. Thomas Kowski suggested this experiment in the comments.
3. The experimenter used a styrofoam cooler to fill with liquid nitrogen and dip fireworks into it.
4. The fireworks were first lit without being frozen to see how they react under normal conditions.
5. The fireworks were then frozen in liquid nitrogen and lit again to see how the freezing affected their reaction.
6. The experimenter used a blowtorch to help light the frozen fireworks.
7. One of the fireworks exploded into the experimenter's face during the experiment.
8. The experimenter tested three types of fireworks: smoke flares, artillery shells, and aerials.
9. The liquid nitrogen slowed down the reaction of the fireworks.
10. The experimenter found that the powder in the fireworks turned the liquid nitrogen yellow.
11. The yellow color was not due to the liquid nitrogen itself being colored, but rather the coloring of the powder.
12. The experimenter observed that the fireworks went off less dramatically when frozen in liquid nitrogen.
13. The fuse of one of the aerials stopped just short of the container and didn't light off the firework.
14. The experimenter relit the fuse and the firework shot off, but only went about 20 feet in the air before coming back down to the ground.
15. The experimenter decided to stop the experiment to avoid any potential danger from the fireworks exploding on the ground.