omon

phisycs veiw of the world changes every 100 years or so.
no energy is created or destroyed, we simply convert it depeding on our needs, it's all around us, we know how to tap into it by many means,hydrelectic plants, nuclearplant, ic engine..ect, there are just as many ways that we don't know.
permanent magnets are sources of energy, we can tap into their energy, and converte it into movment, which can then be converted to electricity, there is no machine that creates energy, only transfers from one form to another, so it's imposible to make pm machine that takes no energy while giving it, however it is posible to use energy, that is not as obvious as gas, or coal, or water flow, if we can't see it it doesn't mean it's not there.
a machine that takes free energy, like magnetic, gravity..., that we don't pay for, and gives us usefull energy, like electricity, light,motion, heat..., can be considered a pm machine, or free energy machine. no need to brake any laws of phisycs,
btw hydroelectic plants are free energy machines, they'll run as long as there is water flow,there is no burning or fusion involved, and we don,t pay for water flow.

As defined: Perpetual motion refers to a condition in which an object moves forever without being driven by an external source of energy. key word external, but there is such thing as internal energy.