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Pebbls

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  1. A permanent magnet needs just as much force to pull away than it gives out when attracting, so no perpetual motion. Even if there was no friction—and inevitable energy loss—the magnets will lose its magnetism after a few years. If we some how or some way found an "infinite energy source" we would eventually find that is converting one energy to another so it would taking away from something and eventually run out of what ever its using for energy. There are technically perpetually moving things in a vacuum but these do not create energy and can not produce energy but will store energy. Say you have a dam with water above it and you want to harness its gravitational potential energy by using turbines or water wheels. eventually you would have no more water at the top. It would cost energy to get the water back to the top therefore no perpetual motion machine. Same thing would apply to magnets Suppose you have gravitational potential energy in some form you can harness, like water above a dam. You can let the water down and extract some energy (using turbines or waterwheels or whatever you like), but when you're done, the water is below the dam. To repeat this cycle you would have to spend energy to raise the water back up again, storing gravitational potential energy once again. The same idea would apply for magnets. Lots of cool stuff here: http://www.physicsforums.com
  2. Perpetual Motion and why its not possible, Perpetual motion: the motion of a hypothetical machine that, once activated, would run forever unless subject to an external force or to wear.produces work without the input of energy, a machine which spontaneously converts thermal energy into mechanical work Examples of perpetual motion devices: an electric car that charges itself when it drives, A clock that winds itself as tells time. Why isn't it possible? These thing are governed by the first two laws of thermodynamics. The first law of thermodynamics: ∆U = q+w, ∆(delta)U The change internal energy of the system, and (q)The heat transferred into/out of the system and (w) The work done by/on the system. ΔU=q+w simply states that energy can be neither created nor destroyed (conservation of energy). Thus power generation processes and energy sources actually involve conversion of energy from one form to another, rather than creation of energy from nothing. Example of the first law: Battery=chemical energy to electrical Photosynthesis= Optical energy to Chemical energy The Second law of thermos dynamics: dS=∂Q/T The infinitesimal change in entropy of a system (dS) is calculated by measuring how much heat has entered a closed system (∂Q) divided by the common temperature (T) at the point where the heat transfer took place. The Second Law of Thermodynamics is commonly known as the Law of Increased Entropy. While quantity remains the same (First Law), the quality of matter/energy deteriorates gradually over time. HuH? Usable energy is inevitably used for productivity, growth and repair. In the process, usable energy is converted into unusable energy. Thus, usable energy is irretrievably lost in the form of unusable energy. With this information you can see why perpetual motion is not an option. There is a bit more to this due do the three categories of "Perpetual devices." Here are some perpetual device images to give you an idea.
  3. It looks nice, with some good specs. I would wait to purchase this, a new wave of Graphics cards is coming so the price will drop quite a bit.
  4. There is nothing wrong with it. I don't like younger gamers in Survival fps games. I have come across some very mature younger folks in game but a majority act their age. kids will be kids. What type of server is it? battlefield, survival, or a stock server?
  5. They don't care until there is this much publicity . I have had numerous issues with them in years past.
  6. This should have been implemented from the get go. Others have used this for a long time.
  7. Ive seen this, amazing. check out the skin gun. https://www.youtube.com/watch?v=eXO_ApjKPaI. same principle but without the building agent (Bio degradable Silicone)
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