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Introducing Quantum Mechanics

5 Minute Quantum Physics Part 1

Hello and welcome to the very first 5-minute quantum physics tutorial from quantum lifetime comm. My name is John Purcell and in this series of five-minute tutorials we’re going to be looking at quantum mechanics and quantum mechanics is one of the principal theories of modern physics and what it is it’s the study of the behavior, basically of very, very tiny things. Mechanics in this sense actually means the study of how something works, so we usually think of mechanics as being how an engine works, but in general, the word mechanics is just a study of how any system works and a system we’re going to be looking at. Is the system of quanta the singular, which is quantum and a quantum, is a very, very tiny, supposedly indivisible packet of energy, and in fact, since Einstein showed that energy and matter are interchangeable at some level, quantum mechanics can be thought of.

As the study of anything, that’s very small now, the reason that this particularly interests me is that there’s kind of a problem here – a kind of philosophical problem and also a kind of scientific problem, which is this quantum mechanics we’ve said – applies to very small things, and It does work on the very small scale when we’re looking at subatomic particles and even entire molecules. Quantum mechanics often seems to work well, it seems to work extremely well, but when we look at large objects, for example, a chair, let’s say or anything that we can observe with our eyes or anything that we don’t need an electron microscope to observe quantum mechanics doesn’t really seem to work at all. It doesn’t seem to apply because quantum mechanics seems to say that very small things don’t have a state until they are observed. So we think of, for example, a chair as having a position, whether we look at it or not.

But in the world of quanta, with ops, when we observe things, we have to do an experiment that forces them to have, for example, a position and when we’re not looking at them, at least according to a standard interpretation of quantum mechanics, they don’t have a Position so that things that are very tiny, don’t seem to have a position or any kind of state at all until we do an experiment that forces them to have some kind of state and that doesn’t seem to be the situation and the macroscopic world. The world of normal-sized things and various people have put forward various possible explanations as to why this should be so, and some people think that there’s something wrong with the laws of quantum mechanics, although there doesn’t really seem to be, they seem to apply very, very Well, at the small scale, some people think that there’s a boundary between the small and a large and that below that precise boundary, quantum mechanics applies and above it doesn’t apply, and other people still argue that there’s something wrong with our view of how things work.

Can there be something wrong with our very view of actual existence itself, and I actually incline towards the latter view, and that’s really why I want to delve into quantum mechanics mathematically in this series of tutorials. I think that quantum mechanics may well tell us something very deep about how our world actually works physically. Now, just to give you a little bit of the background of quantum mechanics before we finish this first tutorial, quantum mechanics was derived in the first part of the 20th century, and in fact, a lot of the main developments in it took place in the 1920s and They would do more than anyone else. A guy called Werner, Heisenberg working around 1925, and quantum mechanics are. Then we formulated with an equivalent mathematical formulation by a guy called Irving, sure, Dinga, and Werner Heisenberg’s formulation. We call matrix mechanics and Heisenberg Schrodinger’s formulation. We call wave mechanics and, although wave mechanics is more popular, I think it’s Werner Heisenberg’s formulation, in some ways more interesting and we’ll be looking at both in this series of tutorials. So that’s it for this time join me again for the next tutorial and until next time keep it real.

As found on YouTube

Summary

There are few things that fit the bill of fascinating, thought-provoking, and frightening. Death is one such thing.

Since the dawn of mankind, human beings have pondered the question “What happens after we die?” When you stop and think it, you quickly realize there are only two possible answers: something or nothing.

Of course, religion adds some nuance to the abovementioned question, but that’s pretty much it. Either something happens, or nothing happens. Either we are matter to be disposed of and recycled – or we aren’t.

Which one is it?

Well, if you were to ask Dr. Stuart Hameroff, something happens – and it involves consciousness.

Scientists Reveal What Happens To Your Soul After Death

What is consciousness?