Archives for Physics - Page 4
Watching a Television broadcast from Earth while moving Relativistically
Imagine you are in a spaceship moving away from the earth at a velocity v. Imagine that a TV broadcast is sent to your spaceship from Earth. How would you…
Solar sails – How do they work?
Light has no mass – yet it can push solar sails. How? It is true that photons do not have "rest" mass. They do have energy - and hence an…
Throwing eggs at your bedsheet – Illustrating Netwton’s Second Law
If you threw an egg at your bedsheet or blanket (held from all 4 ends), would it break? The answer is no. Newton said that the force that the…