Professor KAIST says quantum mechanics is too easy

(1)It was so easy that I realized quantum mechanics in this life. Summary of views 13 days ago
(2)Is the cat dead or alive
(3)What I gave up on this time
(4)quantum mechanics at once
(5)We’re going to do quantum mechanics, which is known to be difficult
(6)Department of Physics at KAIST
(7)Professor Kim Gap-shin
(8)I can trust him because he’s a professor at KAIST
(9)It’s called a polarizing plate
(10)Light is a wave
(11)The light is vibrating like this
(12)So the light can vibrate like this
(13)It can vibrate vertically
(14)It could vibrate like this
(15)Can vibrate horizontally
(16)This is called polarization
(17)Everyone, sunglasses
(18)I’m using the principle of polarization
(19)That’s why you block all the vibrations
(20)Sunglasses block all the light that vibrates horizontally
(21)So this is the polarizing plate
(22)I’m going to stop it from vibrating like this way
(23)So if you look at it like this, you can see my face
(24)Then there’s another polarizing plate
(25)This is the same thing
(26)What happens if you put it up like this
(27)This time, it’s going to prevent it from vibrating upwards
(28)These two polarizing plates are combined like this
(29)If you put it up vertically
(30)If I put it together, you won’t be able to see my face

(1)In the front, I only passed the horizontal rotation
(2)But in the back, only the vertically vibrating parts go through
(3)If you do this, it blocks all the light
(4)I put one in the middle
(5)If you put it in at 45 degrees
(6)If you put it in like this, you’ll see my face
(7)So what’s going on here
(8)This is a quantum mechanical phenomenon
(9)I definitely blocked both of the lights
(10)What’s wrong with this
(11)Collapse at the moment of observation
(12)For example, here’s an example
(13)If there’s a man and a woman
(14)I told him to block the man and pass the woman
(15)The polarizer in the back stops the woman and passes the man
(16)Then no one can pass by
(17)But in this situation, at this 45 degree angle
(18)I put this in
(19)At first, I blocked the man and passed the woman
(20)Among her, babies pass by and adults stop her
(21)That’s what I did
(22)Then what happens is
(23)Stop the man. Go through the woman
(24)Then a woman would have passed by
(25)Among women, adults are blocked and babies are talking like this
(26)And then I said, “Stop the girl”
(27)A baby boy is coming out
(28)Of course you don’t understand
(29)So that’s quantum mechanics