blike

Not true. What I find disguisting is how some people bring their 6-10 year olds to movies filled with sex and violence. Just recently I watched a movie that showed a pregnant woman being stabbed in the stomach. It was pretty intense, even for adults. Beside me sat a wide-eyed 6 year old with their parent. I was horrified. (although the scene later turned out to be a setup, she wasn't really pregnant)

Oh don't mind the democrats, they've always invented reasons to hate a republican president.

wow, thats awesome! That would have scared me

Faf got hit. ROFL

If his system did indeed work, and it actually ran forever, then he would have to be gaining energy to overcome the energy lost by friction, etc. Thus, infinite energy Unfortunately, it won't work. Probably the closest thing to perpetual motion we've ever designed is gravity probe B, whose gyroscope will only lose 1% of it's starting speed over a period of 1000 years.

Cells know whats going on around them, and can interact with each other accordingly. This isn't due to cellular "consciousness", just finely tuned chemical processes in the body.

Hey whats up man! Glad to have you.

June, its my birthday as well.

It looks like you have all the components to build it yourself. Instead of having loops at the end, just use cardboard ramps that are high enough that the ball will not go over the top. Build two ramps (with guided tracks), set one at each side and let your system run. Use the ruler as the track, or construct one out of cardboard. If you get your setup working, go here and claim your prize: http://www.phact.org/e/freetest.html (wow, I just posted three times in a row )

I'm trying to think of an easier though experiment to help illustrate why it won't work. 1) The tricky thing about magnetism is that it appears to add energy to the system by accelerating an object towards it. Remember, however, that this energy did not come from nowhere. Much like a rock at the top of a hill, the potential energy was stored with the action of putting it there. In this sense, magnetism is analogous to gravity. 2) Another aspect to consider is that the final velocity of a (single) ball-magnet system equals the initial velocity. Imagine a single ball magnet system, where a ball drops down a slope, hits the magnet, and pushes a ball on the opposite side up another slope, where the process repeats. If a ball is moving 1 mm/s towards the magnet when it is 5 cm away from the magnet, the ball which is knocked loose on the other side will be travelling 1 mm/s when it is 5 cm away from the other side [in a frictionless system]. You are not gaining velocity. In this sense, the ball-magnet system can be compared to anything with periodic motion (a spring, sin wave, gravity, pendulum). This, of course, is assuming a frictionless surface and perfect transfer of energy during collisions. Note that in your setup, it appears to gain velocity. However, the final kinetic of the moving steel ball is not greater than the sum of the potential energies of the other steel balls. In other words, you've gained kinetic, but lost potential (energy is conserved). There is a system that uses gravity to perform a very analogous motion. In this system, you add potential energy to the initial steel ball by raising it up. As you release, this potential energy is converted to kinetic, transferred through the balls, and pushes the steel ball on the other side upwards. It falls back down and repeats the process. If there were no friction or energy loss from the collisions, this system would carry on indefinitely. However, the tiny amount of friction between the strings and the point where they are attached causes this system to halt in less than 20 seconds. Imagine the friction of a steel ball on a track. If your system were to be built, it would probably run down very simliar to the above picture. At first, it would work fine, but with each cycle the balls will leave with less velocity than before, and finally there won't be enough energy to push the balls lose from the magnet. At this point, the system stops.

You're thinking that magnets add energy to the system by increasing the velocity of the ball. A steel ball and a magnet is a form of potential energy, just like gravity. The potential energy is stored when you set up the system. When you release the ball, the potential energy is being converted to kinetic energy as it starts rolling. The speed of the steel ball leaving the other side is not new energy, it is potential energy stored in the system when you set it up. A small portion of this energy is lost to heat and collisions. Thus, while the system may run for awhile, the energy of the system gets lower and lower until the steel balls and magnets will reach a state where it no longer runs. Remember, energy is neither created nor destroyed and in all energy exchanges, the final energy will be less than the initial energy. Your system is definitely interesting. It may even run a bit (especially in a low-friction environment). But in actuality, it will not keep running without any sort of energy input from the outside. I also want to point out that none of us enjoy being called llamas for attempting to explain why your system will not work. You should be thankful that we are willing to take the time to help you understand why it won't work, when in actuality it deserves a . I'll work out some equations for you here shortly to help you understand.

Indeed. A perpetual motion machine of any kind implies that energy is perfectly conserved in the system, which is impossible. The balls will lose energy to heat via friction, and there is some energy loss involved with the collisions. This will add up to the intial potential energy rather quickly, halting the system.

How are you employed?

lol, i'm sure glider would have a different opinion on that. Psychology seems [at least at my university] to be one of those majors (like a premedical degree) that everyone wants to do, but hardly anyone actually does. In other words, lots of students start out as psychology majors, but only a handful finish that way.

The Elegant Universe was the one about string theory I believe. But yes, they have great programs, and some of them can be viewed online for free at their webpage!

Gore lost.

strongly doubt it

I shook colin powell's hand (years ago), who knows george bush. =wins

Summer = Classes for me

hah!

http://www.reversespeech.com/ Any of you ever seen this? Sounds hokey to me.

Physics II Physics II Lab Organic II - (just took the most mind-numbingly horrible final. girls were crying) Public Health Genetics I'm finally finished with all my medical pre-reqs When do you guys finish?

Unfortunately, it may take awhile.

I think a lot of the people want peace, maybe not the rulers.

why is that?