Just gonna list some physics facts:
1. Atoms are 99.9999999999999 per cent empty space, so all the matter that makes up the entire human race could fit in a sugar cube if compacted.
2. There are probably more than 100 billion galaxies in the universe, each with 100’s of millions of stars in each.
3. Light in a vacuum travels at 186,000 miles per second.
4. Particles can exist in two different places at once.
5. Light from the Earth takes just 1.255 seconds to reach the Moon, a distance of about 200,000 miles.
6. The closer you move towards light speed, the more time slows down, so riding in the car for a couple hours will cause you have aged slower than if you just sat at home, although the difference is nearly immeasurable.
7. Light can be bent around objects by gravity, distorting views.
8. Uranus is the only planet in our solar system that rolls on its side like a barrel, while Venus is the only planet that spins in the opposite direction to Earth.
9. Visible matter accounts only for about 2% of the Universe’s mass.
10. E = mc^2 only applies for a particle that is at rest.
11. Gravity is so strong at the event horizon of a black hole that not even light can escape it.
12. The heat of a flash of lightning can reach temperatures of up to 50,000 degrees Fahrenheit. That’s hotter than the surface of the sun, which is around 10,000 degrees Fahrenheit.
13. According to the double slit experiment, if you observe which of the two slits the light passes through, you force it to behave like a particle. If you don’t, and observe where it lands on a screen behind the slits, it behaves like a wave.
14. Light speed is the speed limit of the universe. So, if something is traveling close to the speed of light, and you give it a push, it can’t go very much faster. But you’ve given it extra energy, and that energy has to go somewhere. It is turned into mass (E=mc^2). This means that the object becomes heavier.
15. Despite all the advances made in astrophysics in recent years, we don’t know what makes up the majority of the universe.