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fundamental interaction summary

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Below is the article summary. For the full article, see fundamental force.
gravitational lens
gravity Summary
Gravity, in mechanics, the universal force of attraction acting between all bodies of matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter. On the other hand, through its long reach and universal action, it controls
Understand how the concept of touch changes with the presence of electrons between two objects
electromagnetism Summary
Electromagnetism, science of charge and of the forces and fields associated with charge. Electricity and magnetism are two aspects of electromagnetism. Electricity and magnetism were long thought to be separate forces. It was not until the 19th century that they were finally treated as interrelated