We only know a very small part of the material that constitutes the universe. A very large part is called with the name
Hubble recorded the self-destruction of a giant meteorite, in an event that was the first to see the Earth's astronomers.
Seawater is retained on Earth by gravity, the Moon and the Sun also have gravity for the earth. In particular, the Moon absorbs a mass of water on the ocean surface.
Steve Truglia, an English stuntman, has successfully performed a stunt on the acrobatic circle with perfect precision, based on the phenomenon of centrifugal force.
Centrifuges, including a high-speed motor, are an extremely important device for medical testing. It uses centrifugal force to separate the liquid into separate parts.