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What is Physics? Overview, Definitions & terminologies

What is Physics? Overview, Definitions & terminologies

Before we know Physics let’s take a quick overview of Science. Science Definition The Study of Nature is called Science Science, as currently defined, proposes critical knowledge and tries to describe reality and explain it by means of laws that are universal propositions that establish under what conditions certain events will occur, thus allowing the prediction of …

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What is Real? Quantum physics and Reality

What is Real? Quantum physics and Reality

Is reality an Illusion? Quantum theory can only be expressed in mathematical terms and describes matter as an abstraction. In this sense, matter does not inhabit a specific space or time; it is prevalent throughout the Universe and in a constant discontinuous, spontaneous, and unpredictable movement in the Universe. Elementary particles do not obey predetermined …

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How many String theories are there?

How many String theories are there?

The bosonic string world sheet action for a string propagating in flat 26-dimensional spacetime with coordinates Xm(s,t) can give rise to four different quantum mechanically consistent string theories, depending on the choice of boundary conditions used to solve the equations of motion. The choices are divided into two categories: A. Are the strings open (with …

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