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As far as the Abrahamic religions go I was out of them by the time I was teenager. I have had many discussions with Born Again Christians and ones who have a high education ie. dentists, dental specialists and medical specialists. For me the single big hole is the all knowing and all...

You seem to be suggesting your atheism relates to Abrahamic religions. However assuming that is not the case atheism is a belief based on the evidence you have available. That is exactly the same situation as people who have a belief in "there is something there" The bottom line is each...

"Belief is the state of mind in which a person thinks something to be the case, with or without there being empirical evidence to prove that something is the case with factual certainty" Do you have evidence there is no Gog, gods or whatever? Obviously you don't and neither does anyone else...

Except I am not discussion the Christian religion. Note I have said many times...Gor or gods or whatever... As to not be able to prove a negative can't you prove the following: 80 cms does not equal 3 ft 300 grams does not equal 1 pound etc. In the case of an atheist he/her has...

Simple question. Do you have proof that God or gods do not exist?

Atheism is a religion or faith as there no proof that God or gods or whatever don't exist. An atheist "believes" the absence of evidence is sufficient for him/her to have faith that a god or gods don't exist.

So are you saying the mass of the pendulum is increased like the bullet and so the distance the pendulum swings back is the same as the simple calculation would show. If apply a force to give a body 1g then a simple V=U+AT will have that body at the speed of light in just under a year. I...

Let's try a real world one instead. Astronaut leaves earth to dock and board the ISS. He goes from zero to low earth orbit at about 17,500 mph in about 10 minutes. During this phase what happens with his time as compared to back on earth. My understanding has been his clock will be...

I don't get it.:) If our intrepid traveller jumps on a light beam them from his perspective he reaches a planet at Alpha Centauri in zero time and there was zero distance. However, for observers on earth and the planet at Alpha Centauri he has travelled about 4 light years and he has...

But it is Car M (its driver) that sees the greatest change in mass and time?

I don't that way at all. For example if I leave the earth and accelerate up towards the speed of light and return to earth several years have passed on earth but me 1 year or whatever has passed. If we take two cars that leave each other at 50 mph then 1 hour later they are 100 miles apart...

Back to my original question as to time and mass if our traveller slows down. Let's take the Apollo astronauts. Stage 3 reignites and takes them to escape velocity of about 26,000 mph and the stage is shut down and earhs gravity slows them to about 3000 mph when they are about 30,000 miles...

If I calculate the kinetic energy of a rifle bullet then is it correct that my answer will be 99.9999999 etc.% of the true figure as the mass of the bullet will have increased? Likewise, if we had a ballistic pendulum then it would swing back by a greater amount than the transfer of momentum...

That is what I was trying to illustrate.

Does that really change the speed of light? For example let's say a car has a top speed of 100 mph and so on a straight road 100 miles long it will take one hour for the trip. However, if every few minutes the driver gives the brakes a quick jab then obviously the trip takes more than one...

Try this one. https://www.physicsforums.com/threads/does-time-essentially-stop-if-you-could-travel-a-c.51790/ Or enter in Google.... does time stop if you travel at the speed of light

Instantly from the perspective of someone riding the light beam. If I could start off at the speed of light and start my clock then when I arrived at a star 100 light years away my clock would show zero time has passed. But from the perspective of earth and the planet 100 light years away then...

I am under the impression that from the perspective of earth and the distant planet it will take 100 years but for our intrepid traveller he will arrive at the distant planet instantly, assuming he has jumped on a light beam and there is 0 time getting to the speed of light.

But if I can jump on a light beam I can go to a planet a 100 years light years from us, spend 24 hours looking around and grab something to eat and then jump on the light beam and be back on earth only 24 hours older whereas you are dead and long gone when I arrive back on earth.... My...

So the key point is I was accelerating.....taken to the extreme by jumping on the light beam......but whether jumping on the light beam or accelerating more gradually on the spaceship......the time for me has slowed down or in the case of jumping on the light beam the time stopped. Now let's...