What Is Heisenberg Uncertainty Principle And Why Is It Important?
Nowadays, more and more people trust science and his achievements, take for example this last year, shocked by the diffusion of Covid 19: the entire world is orienting its decisions according to what scientists are discovering.
Let’s talk about quantum mechanics, particularly about Heisenberg uncertainty principle: a shocking result that has changed completely our way of thinking about practically everything in this world.
The whole 20th century was “affected” by this discovery, which totally destroyed our previous vision of science which was characterized by determinism. Hundreds of poets and writers have been influenced by the revolution of quantum mechanics.
But what is it about? Who was Heisenberg? What does his principle state? And why did it have so many consequences even on different fields such as literature and philosophy?
Many things can be said, but to start our description we need to start from Newton. Known as one of the three/four most brilliant scientists ever, Sir Isaac developed what is recognized as “Classical Mechanics”, together with other famous studies on optics and obviously about gravity. What are the main principles of this theory?
The first one is the law of inertia
More precisely, each photon has an energy proportional to its time frequency through a constant called Planck’s constant. After that, in 1924 the famous Louis De Broglie tried to invert this correlation: he proposed that all particles could be considered also as waves with a wavelength equal to Planck’s constant divided per its momentum (which is the product of mass and velocity) —– λ=h/mv.
So, the higher the momentum of the particle (heavy or fast objects) the shorter the wavelength.
And talking about waves we must mention Fourier transforms.
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