Recent content by NoDoubt

Thank you, Now I understand, how this time dilation works. Defining time is easy, there is no proper time in this universe, because every thing is in motion relative to each other, except in the middle of the universe, where it all began. Thank you again for your help.

Let us try this with the Hadron Collider, I'm in the collider spinning at near light speed, And there is a glass window so that I can see the sky and the passage on the Sun, Now according to you, I shall see Sun passing in the sky rapidly? I know this, but we will stop the train and get off...

True, It appears so.

Good Afternoon, After watching a TV program "Into the Universe" "Time Travel " I have some doubts left. I know Time Dilation has been proven by experiments (Atomic clocks on jet plains) and we see it every day that GPS system needs time correction (Due to Time Dilation perdicted in SR)...

Are you serious? Please calculate the your distance from top of the wall to the light source and then add the distance from source to the bottom of the wall, and you will find out that it will actually take longer than sending a signal straight from the top of the wall to the bottom. Please do...

Thanks Jesse; The part I was missing was: I think I have figured it out now, If we have a sphere of radius .5 metre, with reflective surface of 99.9% and light source capable of producing daylight inside this sphere, then: Number of photons hitting the surface per second = 1.2 *...

Thanks, I got my answer, I was talking about the OP's scenario. (Sphere with a hole) I know there is no perfect sphere ever made to trap the light. Let us say reflective index of a closed sphere is 99%. only 1% of the light is being absorbed, Now if the light source inside the sphere...

You mean, like sound waves? (echo in room), So sound source can also be used instead light in a sphere. Right? Or will it fail, because sound waves travel in all directions?

Oh.., I see, Now it is "something" slightly slower than c, Then the formula will work perfectly, But I thought I heard "photon moving just under the speed of light". Never heard that before. :smile:

How it can be? Light never slows down, it just takes longer path, so time experienced by the photon rider (If there is any) will still be Zero.

This will be good only when the spaceship/jet/train is accelerating, Once it start travling at a constent speed, Time dilation will take over and the clock will start to lag. ghwellsjr:You did a really god job with those animations. Thank you. And I know that a clock in Boulder Colorado...

But how will you build one? I'm having hard time putting one togather. Would you care to elaborate a bit? Thank you.

I think we are having some miscommunications here, Let me try to explain myself again. I'll try to keep it as simple as possible. Thank you. My understanding is, take two identical clocks (atomic clocks), and put one on a jet or a spaceship for some time. when we bring them back togather...

Of cource, I know that. This is exactly what I'm trying to do. "DaleSpam" I'm sorry, You missed the whole point.

Alright, alright, I agree with you. So do you agree with me that this arrangement will work only while acceleration, but not in constent velocity situation? If yes, I can put another experiment to show that it is possible to build a clock that will not loose its time because of motion, In...