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Imaginary Numbers - Are They Real?

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100SekundenPhysik

Published on Oct 21, 2024

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???? Discover modernbrain: ⚡❯❯ https://modernbrain.de ❮❮⚡ (ad) ► All videos: http://bit.ly/1fa7Tw3 In 1545, a mathematician discovered numbers that are completely different from those we are familiar with. They do not even exist within the number line we know, but in a completely new dimension. This surreal character is why they are called "imaginary numbers." And with them, we can suddenly perform a mathematical operation that we learn at school is actually not possible: namely, taking the square root of a negative number. Since their discovery, scientists have been arguing about the authenticity of these numbers. They have indeed become an indispensable tool in modern physics, mathematics and technology. But the question remains whether they are purely an aid and can be dispensed with in principle, or whether they are really needed to describe our nature. Brand new quantum experiments were recently able to settle this dispute once and for all: Imaginary numbers actually seem to be anchored in the foundation of our cosmos. So what exactly are imaginary numbers and why are they actually more real than their name suggests? Sources and more on the topic: The experiment: Testing real quantum theory in an optical quantum network https://arxiv.org/abs/2111.15128 https://arxiv.org/pdf/2111.15128 Spectrum. History of science: Let there be numbers! https://www.spektrum.de/news/es-werde... ✚Snapchat: SekundenPhysik ✚Facebook: http://on.fb.me/YJFlNt ✚Subscribe: http://bit.ly/10jgdi2 100SekundenPhysik: that's science in a simple, concise and entertaining form. Tags: physics, science, technology, science fiction, world view of physics, philosophy of physics, future, scientific theory, technology, research, physics documentary, documentary, natural sciences, natural science, sci-fi, science fiction, astrophysics, cosmos, space, universe, mathematics, imaginary numbers, complex numbers, riddle, contradiction, paradox, math, thought experiment, Gerolamo Cardano, mathematician, theory, numbers, history of mathematics, quantum physics, Euler's number, mathematical discoveries, nature of numbers, imaginary numbers, complex numbers

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