Category Archives: Physics

Q: If the Sun pulls things directly toward it, then why does everything move in circles around it?

Physicist: Newton’s laws of motion say: Where MP and AP are the mass and acceleration of a planet, MS is the mass of the Sun, R is the distance between them, and G is a universal constant.  What this rather … Continue reading

Posted in -- By the Physicist, Astronomy, Evolution, Physics | 4 Comments

Q: Before you open the box, isn’t Schrödinger’s cat alive or dead, not alive and dead?

The original question was: If I don’t open the lid of the bunker, the cat inside is either dead OR alive.  Why does Schrödinger say that the cat is both alive AND dead if I do not perform the act of … Continue reading

Posted in -- By the Physicist, Philosophical, Physics, Quantum Theory | 2 Comments

Q: How many times do you need to roll dice before you know they’re loaded?

Physicist: A nearly equivalent question might be “how can you prove freaking anything?”. In empirical science (science involving tests and whatnot) things are never “proven”.  Instead of asking “is this true?” or “can I prove this?” a scientist will often … Continue reading

Posted in -- By the Physicist, Experiments, Math, Philosophical, Skepticism | 2 Comments

Q: How does Earth’s magnetic field protect us?

Physicist: High energy charged particles rain in on the Earth from all directions, most of them produced by the Sun.  If it weren’t for the Earth’s magnetic field we would be subject to bursts of radiation on the ground that … Continue reading

Posted in -- By the Physicist, Astronomy, Particle Physics, Physics | 5 Comments

Q: If time slows down when you travel at high speeds, then couldn’t you travel across the galaxy within your lifetime by just accelerating continuously?

Physicist: Yup!  But sadly, this will never happen. This is a good news / really bad news situation.  On the one hand, it is true (for all intents and purposes) that if you travel fast enough, time will slow down … Continue reading

Posted in -- By the Physicist, Astronomy, Physics, Relativity | 13 Comments

Q: When something falls on your foot, how much force is involved?

Physicist: There’s a cute trick you can use here.  It a falling object starts at rest and ends at rest, then it gains all of its energy from gravity, and all of that energy is deposited in your unfortunate foot. … Continue reading

Posted in -- By the Physicist, Experiments, Physics | 3 Comments