Richard Fineman won the Nobel Prize for his work on quantum electrodynamics. He said if
you think you understand quantum physics you don't understand quantum mechanics. The
theory is arguably the most successful scientific theory out there and is let us invent
technologies like computers digital cameras digital cameras LED screens. There 's nothing
in quantum mechanics that tells us how the wave function collapses and this is not only true
for electrons but everything in the universe. The famous double slit experiment has huge
consequences for our model of the universe and it was very surprising the first time it was
done physicists are still grappling with this question today. This is where the phrase things
can be in two places at once comes from this is known as superposition which comes from
the fact that this wave can be made by adding or superimposing these two waves. Einstein
was uncomfortable with this idea because if you measure one of the particles here you
instantaneously know what the other will be even if it 's billions of miles away and that 's got
a whiff of faster-than-light communication which is not allowed by the theory of relativity.
A sine wave gives you a precise momentum and any wave that is n't a perfect wave has to
build out of multiple different sine waves. Each of the possible different values of momentum
for the particle has a different wavelength. This is Heisenberg 's uncertainty principle you can
only know certain things precisely but not everything. Quantum physics is a fundamental
property of the universe. I think that quantum mechanics is n't too difficult for most people to
get the basics of what 's going on in the past I've relied on analogies to try and explain it but
here I 've just described what's actually going on which I think might be more helpful but if
you 've got more questions I 'll be on the comments below so ask away for me the weird
thing about quantum physics is that on the one hand it 's incredibly accurate and predictive
but also it's got giant holes in it like the measurement problem.
you think you understand quantum physics you don't understand quantum mechanics. The
theory is arguably the most successful scientific theory out there and is let us invent
technologies like computers digital cameras digital cameras LED screens. There 's nothing
in quantum mechanics that tells us how the wave function collapses and this is not only true
for electrons but everything in the universe. The famous double slit experiment has huge
consequences for our model of the universe and it was very surprising the first time it was
done physicists are still grappling with this question today. This is where the phrase things
can be in two places at once comes from this is known as superposition which comes from
the fact that this wave can be made by adding or superimposing these two waves. Einstein
was uncomfortable with this idea because if you measure one of the particles here you
instantaneously know what the other will be even if it 's billions of miles away and that 's got
a whiff of faster-than-light communication which is not allowed by the theory of relativity.
A sine wave gives you a precise momentum and any wave that is n't a perfect wave has to
build out of multiple different sine waves. Each of the possible different values of momentum
for the particle has a different wavelength. This is Heisenberg 's uncertainty principle you can
only know certain things precisely but not everything. Quantum physics is a fundamental
property of the universe. I think that quantum mechanics is n't too difficult for most people to
get the basics of what 's going on in the past I've relied on analogies to try and explain it but
here I 've just described what's actually going on which I think might be more helpful but if
you 've got more questions I 'll be on the comments below so ask away for me the weird
thing about quantum physics is that on the one hand it 's incredibly accurate and predictive
but also it's got giant holes in it like the measurement problem.
