Hydroelectricity
No, an automobile engine is not a perpetual motion machine. It relies on fuel combustion to produce energy, which is not a perpetual source. Perpetual motion machines are theoretical devices that can operate indefinitely without an external source of energy, which violates the laws of thermodynamics.
The development of a magnetic motor capable of achieving perpetual motion is not feasible due to the laws of thermodynamics, which state that perpetual motion is impossible.
Perpetual machines violate the first or second law of thermodynamics by creating energy out of nothing or using it in a completely efficient manner. These laws state that energy cannot be created or destroyed, and there will always be some energy lost as heat in any process. As a result, perpetual motion or perpetual machine is not feasible in reality.
No, gravity is a force of attraction between objects with mass, not perpetual motion. Perpetual motion refers to a hypothetical machine that operates indefinitely without an external energy source, which is not possible due to the laws of thermodynamics.
It is not possible to create a perpetual motion machine using 4 watering cans or any other materials. Perpetual motion machines violate the laws of thermodynamics and cannot exist in reality.
Perpetual recourse
One that will be there forever and ever and never-ending.
Renewable
The most expensive resource in the world is Californium. It's about 27 Million $ per gram.
Note that "least expensive" is two words. The least expensive item in our restaurant is the white rice.
Formica or laminate it is the least expensive.
The least expensive car is probably the Tata Nano.
One that will be there forever and ever and never-ending.
The least expensive mode of transportation is by water. It is fuel efficient, less polluting and the safest. It is also the least expensive to move cargo.
expensive and a non-renewable resource.
The Oyster Perpetual is the lowest priced model of Rolex. And it comes at a little over $5,000. It is important to understand that this is an entry level price for the wristwatch. Of course, you may consider this as a whole lot of money for a watch.
Technically the wind is the lest natural resource used.