String theory is a concept in physics that suggests the basic building blocks of the universe aren’t tiny particles like atoms, but instead extremely small, vibrating strings of energy. These strings can vibrate in different ways, and their vibrations determine the properties of the particles, such as their mass and charge.
The theory tries to unify all the fundamental forces of nature, including gravity, into one framework. To make the math work, string theory proposes that there are more than the three dimensions we see (length, width, height); it suggests there could be as many as 10 or 11 dimensions, but most of them are hidden from us.
In short, string theory is an attempt to explain everything in the universe by imagining that at the smallest level, everything is made up of tiny vibrating strings.
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