The summary is:
The video is about the different states of matter of various substances, especially the components of air. The narrator explains how to obtain liquid and solid nitrogen, argon, and air using liquid helium, vacuum pumps, and other equipment. He also demonstrates the magnetic and flammable properties of liquid air and shows how it melts and evaporates. He also promotes some products and invites viewers to share their chemical projects with him.
Here are some key facts extracted from the text:
1. Dry water is a liquid that cannot wet paper or drown a computer motherboard.
2. Solid air is a state of matter in which nitrogen, oxygen and argon are frozen together.
3. Liquid nitrogen has a boiling point of -196 degrees Celsius, which is lower than the boiling points of other components of air.
4. Liquid helium has a boiling point of -269 degrees Celsius, which is the lowest of any liquid on earth.
5. Liquid air can be obtained by cooling and condensing air with liquid nitrogen.
6. Liquid air is slightly magnetic due to the presence of liquid oxygen in it.
7. Solid air can be obtained by freezing liquid air with liquid helium under very low pressure.
8. Solid air is also magnetic and melts quickly into gas at room temperature.