Gravity Questions
- Are there any massless particles?
- Are there different types of black holes?
- Can gravity form waves?
- Can you go fast enough to get enough mass to become a black hole?
- Do I weigh less on the equator than at the North Pole?
- Does every black hole contain a singularity?
- Does everything get smashed to bits when two galaxies collide?
- Does the influence of gravity extend out forever?
- Does the negative mass of antimatter mean that it's gravitationally repelled from stars?
- Does time go faster at the top of a building compared to the bottom?
- How can the heart be strong enough to pump blood up your legs against gravity?
- How can there be anything left in the universe? Don't black holes suck everything in?
- How can you tell a black hole made out of antimatter from a black hole made out of matter?
- How do space ships make artificial gravity?
- How does a cloud fill up with water?
- How does a supernova completely destroy a star?
- How does astrology work?
- How does the expansion of the universe make outer space a vacuum?
- How does wind create all the ocean currents?
- How high does a building have to be for a penny dropped from the top to kill a person on the ground?
- How large would a bucket of water have to be to put out the sun?
- I know that the gravity of the moon causes ocean tides on earth. How does centrifugal force cause the far-side bulge?
- Is a black hole a 2D or a 3D object?
- Is Pluto a planet?
- Since gravity is unlimited, can we use it as an infinite energy source?
- What are some fake-science headlines that reappear regularly?
- What is the speed of gravity?
- What keeps a bicycle balanced?
- What would happen if you fell into a hole that went through the center of the earth?
- Where do ocean tides get their energy from?
- Why are all the stars fixed in space?
- Why did people believe the earth is the center of the solar system when it's obvious the sun is?
- Why does the moon's gravity cause tides on earth but the sun's gravity doesn't?
- Why doesn't the earth fall down?
- Why is gravity not a real force?
- Why is gravity the strongest force?
- Why is physics scale invariant?
- Why is there no gravity in space?
- Why is there no up and down in space?
- Will the night sky eventually end up completely black because the universe is expanding?
- Would a guitar sound the same on a space station?