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If Energy Can't Be Created, Where Did the Universe's Energy Come From?

THE LAST QUESTION

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If Energy Can't Be Created, Where Did the Universe's Energy Come From?

1 просмотр · 4 дн. назад
THE LAST QUESTION
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1 просмотр · 4 дн. назад
Energy can't be created or destroyed, so where did the universe's energy come from? Physics has a strange answer, and it starts at a patent office. Every star, storm, and atom holds energy, yet the law of conservation of energy says it can never appear from nothing. In this video, we explore how scientists wrestle with that puzzle. You will learn why a famous 1918 theorem links energy conservation to the symmetry of time, why the expanding universe seems to bend the rule, and how the cosmic microwave background loses energy as space stretches. We also look at the zero-energy universe idea, where the positive energy of matter may be balanced by the negative energy of gravity, and at the cosmic inflation theory that tries to explain how it could work. Along the way, we weigh the serious objections to this picture, from how to add up the energy of an entire universe to the question of why there are laws at all. Near the end, we examine a flaw hidden inside the question itself. This video is for educational and informational purposes. It explores different perspectives with respect for all beliefs and is not medical, psychological, or religious advice. If you enjoy big-question science, subscribe for more, and share your thoughts in the comments. Where do you think it all came from? #Universe #Physics #Cosmology #ConservationOfEnergy #Science