Recent content by ComputerPsi

As an experiment, sure you can measure the induced voltage in a radio antenna, but some of that power will be lost in heat. I gather however that this has already been done. I assume there is some kind of formula for this, given a frequency. No?

Time Observed = Time / √(1-v2/c2) So if on Earth v = .99962c And moon v = 0.3c Tearth = Time / √(1-(.99962c)2/c2) Tmoon = Time / √(1-(.3c)2/c2) Doing algebra... Time = Tearth * √(1-(.99962c)2/c2) Tmoon = (Tearth * √(1-(.99962c)2/c2)) / √(1-(.3c)2/c2) Tmoon = Tearth *...

http://en.wikipedia.org/wiki/Ladder_paradox http://en.wikipedia.org/wiki/Relativity_of_simultaneity Let's say I'm going at speed c, and my friend is at speed c. My friend is a meter behind me, and we are going in the same direction. While I am traveling at the speed of light, time inside of...

I'm trying to figure out the difficulty of this question. Imagine I'm in a car driving at speed c. My friend is driving in the other car at speed c. If we started driving at exactly the same time, and are displaced from the center at exactly the same distance, we will hit each other. If...

Yes, it is an accurate formula. Why do you doubt it?

Hello, I've got a number of questions about physics. None of my physics friends have given me clearly defined answers, so I thought maybe asking here. For now, I'll just ask one simple question. So, if I have a laser pointer, which has a weak battery, it will shine with less number of...

Plastic transparent film. I used it for my greenhouse.

Hello, I've got a number of questions about physics. None of my physics friends have given me clearly defined answers, so I thought maybe asking here. For now, I'll just ask one simple question. So, if I have a laser pointer, which has a weak battery, it will shine with less number of...

How did you get this? Especially the M / 2 part..

...After thinking about it, it seems (X, Y) represent the "center" of each rod and the variable l is actually 1/2 of the length of each rod. Is this correct?

Wow. Thank you Dickfore for that input. I've started to look at the top part of the equations.. it's a lot to take in, but I'll figure it out due some time. For now I just have one small question to confirm what I have been thinking about for the top formulas: The variable l. That's the length...

I want to simulate the (probably chaotic) two dimensional movement of a chain, given that there is no gravity, and all of the links of the chain have some constant mass. Additionally, there is an assumption that the chain cannot collapse - all of the links of the chain will always be touching at...

I understand the fact the light can be proved to be both a particle and a wave, but one thing I don't understand: Every other wave I have known, travels through a medium of some sort. A wave consists of a particle moving one way and then back to its original position. Then the particles next to...

Do anybody know the radius of an electron, proton, or neutron? I understand there are smaller things like quarks, and everything, but as a general size, does anybody know the radius of these parts of an atom?

No, I mean if the particles are not in an atom.. Individually floating around. Would they move from heat, or only atoms affected by it? Btw, thanks for the replies. It answers a couple of questions. :smile: