Recent content by catpants

http://www.diamondoid.org/ Looks like an excerpt from http://www.timecube.com/ :S I did find: http://www.molecularassembler.com/KSRM.htm But any other material would be great!

"Nanosystems" by Drexler -- diamondoid nanomachines I recently picked up a copy of "Nanosystems" by Drexler. Are there any companies or schools currently doing research on diamondoid nanomachines? Google hasn't revealed much so far. "Nanosystems" came out in 1992. What book should I...

I understand now that with no load, the generator would act like a flywheel. (ie, all energy spent pedaling would be stored in the angular momentum of the rotor) Not sure about the shorted case, and I have no generator to test with. I guess I'm wondering how much electrical power output a...

First of all, if you have a generator with an open circuit, and you are pedal powering it, where does the energy go? I would say it is lost as heat, but not sure what could heat up. The coils in the generator itself? Next, what happens if you short the output of a generator? Does it make it...

Calculus of variations problem. I want to make stationary the integral of (1+yy')^2 dx from 0 to 1. I know what the Euler-Lagrange differential equation turns out to be, but how do I interpret the limits of integration as initial conditions for the diff eq? also, can i use laplace transforms to...

It seems like a problem that a physicist would need to solve, but I can't wrap my head around the physical interpretation of it. http://exampleproblems.com/wiki/index.php/CoV7 Also, why do they use u=c*x2? What is c in this case? It says "classical" so it can't be the speed of light, right?

I think the wave equation is what I was missing. Do I try and solve it using separation of variables? Also, the end of your post got mangled, what were you trying to say? Thanks!

Homework Statement http://img811.imageshack.us/img811/1989/problem1.png Homework Equations All shown in the above link, AFAIK The Attempt at a Solution Not worried about part a. For part b, when they say "assume the string is initially at rest" I took that to mean...