Is it possible to harness infinite gravity as an endless source of energy?

The idea of using gravity as an unlimited energy source has been around for decades. But is it really possible? This article delves into the science behind it.

Mar 24, 2023 - 14:13
Jul 15, 2023 - 22:34
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Is it possible to harness infinite gravity as an endless source of energy?
Since gravity is unlimited, can we use it as an infinite energy source?

Considering that we are always under the influence of Earth's gravitational force, can gravity be utilized as an unlimited energy source?

The force of gravity that is always present on Earth cannot be harnessed as an inexhaustible source of energy. It's important to understand that energy and force are distinct concepts that should not be conflated. Energy is a property that objects possess, while forces describe the interactions between them. When objects interact, force is the means by which energy is transferred from one object to another. However, force itself is not energy. While gravity is a force, it does not in itself generate energy but rather facilitates the exchange and transformation of energy between objects.

Gravity and potential energy into kinetic energy

When an iron ball is raised to the top of a mountain and then released, it accelerates as it falls downward. Isn't this an example of gravity providing energy to the ball? Not exactly. Gravity is a force that describes how objects interact with each other, but it doesn't create energy. The energy that is apparent in the motion of the falling ball comes from the person who lifted it to the top of the mountain, not from gravity. Gravity merely provides a way to store and transfer energy between objects. When an object is lifted against gravity, it gains potential energy, which is a type of energy associated with an object's position relative to other objects. When the object is released, gravity converts the potential energy into kinetic energy, which is the energy of motion. However, the total amount of kinetic energy that the object gains will never exceed the amount of potential energy that was put into lifting it against gravity in the first place.

The principle explained here is applicable to forces other than gravity. For instance, if two magnets with opposite polarity are pulled apart and then released, they will accelerate towards each other and eventually collide. It may seem that the magnets acquire energy from their magnetic properties, but the truth is that the energy comes from the external force applied to separate them against their mutual attraction. Magnetism, in this case, serves as a way to store potential energy, which is later converted into kinetic energy. Whenever an object is moved against a force, it gains potential energy.
Indeed, gravity is a force that is constantly present, and its influence does not cease as long as there is mass present. However, since gravity is a force and not a form of energy, it cannot be utilized to generate infinite or any form of energy. Therefore, the perpetuity of gravity's effect cannot be harnessed as an infinite energy source.
Mistaking force for energy can lead to unfounded concepts such as perpetual motion machines or free energy machines. However, these ideas are not feasible since force and energy are distinct concepts, and energy cannot be created solely from force. Therefore, it is not possible to extract energy from a force by a significant amount, which makes the development of machines that rely on this concept unrealistic.
Can hydroelectric plants be considered as deriving their energy directly from the force of gravity? Answer is Not exactly. While hydroelectric plants may appear to draw energy from gravity, the reality is different. The energy utilized by these plants does not originate from the gravitational force, but instead results from an external force that acts on the water. Sunlight is the force that causes bodies of water to evaporate, lifting water molecules into the atmosphere. As these molecules return to the riverbed, they convert their potential energy into kinetic energy, heat energy, and electricity, generating energy for hydroelectric plants. Thus, hydroelectric plants ultimately derive their energy from solar energy captured by water, rather than directly from gravity.

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Sakib I am Sajedul Islam Sakib from Bangladesh. Currently, I am a student at AIUB studying computer science but I also like reading and learning new things, especially about Blogging and Education.