Lets pretend I am in a spaceship and I am moving at the speed of light. There is a light bulb at the center of the ship. I understand that velocities don't simply add together, and the formula is v_{3}=\frac{v_{1}+v_{2}}{1+\frac{v_{1}v_{2}}{c_{2}}}. So the light would not be moving in your frame...
Lets pretend I am in my spaceship going in one direction at 0.9c. My brother is in his spaceship going the opposite direction also at 0.9c. Oh and there is a big clock on the side of our ships. When we cross paths, to me it looks as if I'm not moving and my brother is moving at 1.8c. I am aware...
I can't seem to find the mass of an anti electron neutrino in MeV. I found that in beta radiation one down quark breaks into an up quark, an electron, and an anti electron neutrino. The mass in MeV of a down quark is 4.8, the mass of an up quark is 2.4 MeV, the mass in MeV of an electron is...
I understand that Einstein had the idea of space as a 2 dimensional grid with "planets" sitting of the grid, stretching it out, but I don't get why this affects time.
I can't really bring myself to understand why time slows when you travel at high speeds. I tried to think of a graph in witch the y is time and the x is distance. This line could be at any positive slope. So the only relation is the "speed" at witch the line moves on the graph.
Please help me...
If something starts out faster than the speed of light, can it ever go slower than the speed of light?
And does any thing ever start out faster than the speed of light?
In real life when we accelerate we cover every possible speed we can right? Einstein said that it would take an infinite amount of energy to go the speed of light, but going faster than the speed of light would take almost no energy(forgive me if I'm wrong).
Now let's pretend we are in a...
Let us all pretend it 150 years in the future and we all have spaceships and can travel through space easily without disrupting time.
Our only measure of location would be compared to Earth, and our measure of time would be Earth time (revolutions around the sun and rotations). What if we...
air pressure is measured in psi, (pounds per square inches) Measure the surface area of the ball, divide it by 2. Now measure the weight of the ball in pounds. Pounds divided by the surface area equals the force needed to keep the ball in place. Let's say half the surface area is 10 square...
Einstein said it would take an infinite amount of energy to move something at the speed of light. Photons move at the speed of light every day, so we can infer that photons have no mass. However, a black hole has so much gravity (gravity only affects matter) even light is sucked in. Because...
According to Einstein's equation, E=mc^2, I calculated the energy from one hydrogen atom to be roughly 5.01*10^-15 Newtons. I am unsure as to if this is correct. Please help me.