Recent content by kinimod

I understand that asking "why two clocks on different curves show different time" is the same as asking "why two clocks on the same curve show the same time"... The "why" part of the question starts with an assumption that it should be otherwise. In that case I am like a child asking a parent...

OK, I get this. And clock is an artificial instrument. Let's take atomic clock. What physical events specifically make two equivalent atomic clocks behave differently should they be in motion on different curves in spacetime? There must be some variation that causes this, more specifically than...

Oh well. I'm back to square 1 on then :-D

I like this document a lot, but again it explains the problem in numbers. I can walk to from 16th Ave to 17th Ave (one block) while my friend could run around the block to reunite. He would have to run fast, but it wouldn't occur to me that just because he was running around the block and not...

Thanks all again. I really appreciate it and I think I'm making progress in visualizing and comprehending the concept. I am now understanding the following: In non-inertial reference frame the laws of physics vary depending on the acceleration of that frame (with respect to some inertial...

Thanks everybody. I still can't comprehend it on human aging though. In my mind, if you take 1 million teenagers today on planet Earth and shoot them into space for exploration around the entire galaxy, they can make stops on planets, change directions, accelerate and decelerate as they wish to...

So you mean a human body situated on Earth does not show any signs of wear, aging, decay any differently (at a different rate) than a human body traveling (accelerating, decelerating) around the speed of light, then returning to Earth... We just use this human aging example in textbooks when...

I would also add that it would be fantastic if the government took even more debt on itself, e.g. by printing money as described above. Then they would use the money to hire private contractors and companies to build roads, railways, bridges, etc. Those private contractors then use the money to...

Exactly, and it's a deliberate strategy. One could conclude that government is "overspending" and in "debt", but we can not in fact interpret that as government being economically insolvent,... it just generally means that the entire country is doing well, and we need the prices to go up, we...

National debt simply means that people are wealthy, they have excess money supply that (in people's mind) has no practical/"risk-free" use. So instead of money "laying around", government prefers to motivate people to give it to the government. Government takes this money and locks it (e.g. by...

Why does a human body situated on Earth show signs of wear, aging, decay at a different rate than to a human body traveling (accelerating, decelerating) around the speed of light? How is Time Dilation related to biological processes?

Does then the same decay model apply to a human body? I.e. if you patiently keep accelerating a human body to almost the speed of light, then decelerate back and return it to Earth, will the person live much longer compared to other folks on Earth, or about the same?

Thanks for a warm welcome. If we take humans out of this example, and suppose we only have two equivalent rocks, what does "aging" mean for a rock? How can a rock "age", slower or faster? I'm trying to understand what is fundamentally happening to particles at speeds close to speed of light...

If two guys, each sitting on a different Earth-like habitable planet, fly in the opposite directions, each at the speed of light, which guy would age slower? And slower compared to what? My own understanding is that they both age normally. Because Special Relativity doesn't describe...