Roll on the 20th June

[exxcomm0n]

@ bradpitt

Hmmmm.....you found that a lever can do the same work w/ less effort.

You win the Archimedes challenge!

That means you had an idea, you liked what it did, you mocked up a crude representation to show your thought and prove the concept.

This is about 200% times what it takes for a newbie to come in and spout that it won't work and that the effect is nothing.

Talk is cheap. Learning is expensive.
Learning with your own hands and eyes is priceless!

Keep picking at it, or shelve it until a later date, BUT NEVER just let someone tell you "that'll never work", because if you listen to them it becomes a self fulfilling prophecy.

Oh.......BTW. Welcome to the mental gymnasium!

[onesnzeros]

@ bradpitt

Hmmmm.....you found that a lever can do the same work w/ less effort.

You win the Archimedes challenge!

That means you had an idea, you liked what it did, you mocked up a crude representation to show your thought and prove the concept.

This is about 200% times what it takes for a newbie to come in and spout that it won't work and that the effect is nothing.

Talk is cheap. Learning is expensive.
Learning with your own hands and eyes is priceless!

Keep picking at it, or shelve it until a later date, BUT NEVER just let someone tell you "that'll never work", because if you listen to them it becomes a self fulfilling prophecy.

Oh.......BTW. Welcome to the mental gymnasium!

@exxcomm

i actually thought he (brad) was joking...opps.....exxcomm you are a generous supportive contributer in your words and there is always room for more of that. Me on the other hand can get a bit rough around the edges but i do like the dynamics of this group because it challenges all of us at a passionate level regardless of what we are passionate about.

1n0s

[Bulbz]

@ bradpitt

Hmmmm.....you found that a lever can do the same work w/ less effort.

You win the Archimedes challenge!

That means you had an idea, you liked what it did, you mocked up a crude representation to show your thought and prove the concept.

This is about 200% times what it takes for a newbie to come in and spout that it won't work and that the effect is nothing.

Talk is cheap. Learning is expensive.
Learning with your own hands and eyes is priceless!

Keep picking at it, or shelve it until a later date, BUT NEVER just let someone tell you "that'll never work", because if you listen to them it becomes a self fulfilling prophecy.

Oh.......BTW. Welcome to the mental gymnasium!

I second that

[DarkStar_DS9]

Here, I've got a couple extras.. I'll just go ahead and give you one! ;-)

FEMM - Finite Element Method Magnetics

That's actually pretty cool, thanks! I'm afraid I only understand very little of what it does and how it is used, but I was able to verify that I must be missing something

According to this cool tool, at a given point there will be a magnetic field with constant strength, even if I reduce the current in the coil (by increasing the loopcount and thus the resistance). Since it even calculates the power used, it spells out the following: by adding more loops you get the same strength with less power required.

So my conclusion is the following:

1) I can use an electromagnet to shift the rod upward
2) because of the imbalance, the wheel will turn
3) because it turns, I will be able to generate electricity
4) the electricity generated won't be enough to power the electromagnet (even though it is pulsed and I'll use a capacitor as buffer - or whatever)
5) so I lower the electromagnet's power-requirement (increase loops) until the power required is less than the output
6) I'm obviously fucked because this would mean perpetual motion which is impossible

So what am I missing? I'm not even talking about practical issues here (too much copper --> coil gets too big, too expensive), there should be some formula that tells me it doesn't work that way - I just don't know which one that is, so please enlighten me. And don't tell me that the coil will get hot, increase resistance, decrease current and therefore decrease the strength of the magnetic field - that's obvious, and if setup in the Arctic won't be a problem I guess

I'm thinking more along the lines of "if you extend the length of the coil to fit the additional loops, *something* will happen which decreases the field strength by x" or "if you use more than one layer of wire, *something* will happen which decreases the field strength by y". I just don't know what *something* is, and how big x/y are.

[Yucca]

Just imagine how bad it would be if they didn't drink milk.....

1n0s

"dairy products may actually cause osteoporosis, not prevent it, since their high-protein content leaches calcium from the body. Population studies, backed up by a groundbreaking Harvard study of more than 75,000 nurses, suggest that drinking milk can actually cause osteoporosis."

from www.milksucks.com