Recent content by jfraze

I know this is a stupid question but I can't figure out how to get an answer. I'm trying to figure out if the rules of relativity force a limit on the velocities of two objects in relation to each other. Just as a thought experiment, if a spaceship is traveling at 186,281 miles per second over a...

Exactly, which is why I'm confused about the idea that mass (or anything else) could increase towards infinity, when infinity is not a set value as light speed is. I'm having trouble with the idea that light speed and mass are directly correlated when one value seems to be finite and the other...

What's the distinction you're (Dickfore) trying to make? Are you just saying that the correct statement is "an object can't reach the speed of light because it would require infinite energy to accelerate it to the speed of light"? But the the explanation "an object can't reach the speed of light...

Sorry, if I phrased that poorly: I may have misunderstood other explanations, but I've been told, and read, that an object with mass can't reach the speed of light because it would then have infinite mass, which is impossible. Isn't that the same statement as "if an object with mass reached the...

To define further... Can a photon be "at rest"? If a photon could be trapped and held I think that means it would no longer have momentum. Without momentum would it be anything measurable?

If I understand correctly, an object with mass can't reach the speed of light because at the speed of light it would have infinite mass (and presumably fill the infinite universe). But what happens as an object approaches the speed of light? Eg., if an object traveled at 1% of the speed of...

Is it possible to explain how a photon can be a particle yet have no mass? I think I need a scientific clarification either of what a particle is or what mass is.