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Does energy really exist? | Priyamvada Natarajan, Avshalom Elitzur, and Bernard Carr on the enigma of energy
Philosophy For Our Times
Conservation of Energy in Physics
In physics, the concept of energy has evolved over time. In general relativity, energy and rest mass are manifested as the curvature of space-time, and in this theory, energy is conserved. However, in quantum theory, energy is considered an operator and can be violated due to the uncertainty principle. Despite various conservation laws in physics being found invalid, the conservation of energy remains a fundamental principle. This principle has led to the discovery of phenomena such as the vacuum having energy, the Casimir effect, black hole radiation, and dark energy observed by cosmologists.
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