Recuerdos de UHS:

12mo grado: Video para la clase de Mandarín...perdón, física jajaja (CHOPÍN)

"Siempre hay esperanza para aquel que no entiende NADA."

Neil deGrasse Tyson explains quantum entanglement to Joe Rogan.

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Transcript:

You've heard about quantum entangled particles?

Yes.

Where I can create a pair of particles that know about one another and that they're separated in space and in time.

And if you observe that other particle,

it instantly changes the state of the particle back.

The other particle that's back where I am.

And by the way, they communicate instantaneously,

faster than the speed of light.

When you say if you observe...

but you have to do something.

You have to do. You have to. Yes. So something has to interact with. It's not woo.

The problem is the word observed people thinks is a is a psychological thing.

But in physics, it's got nothing to do with...

It's a measurement. It's a measurement thing. Right. And so, in other words, if we're measuring if there's a if there is an electron sitting in the middle of this table and all the lights are out, I can say I think there's an electron here. Let me find out. And the moment I turn on the lights, the light interacts, a photon interacts with the electron and kicks it somewhere else. So the more I try to measure its position, the less I know its position.

Ooh!

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Dr. Tatiana hits a knife down into a potato. Will it drop?!

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Even in completely empty space, with no external fields present, There's still some amount of non-zero field energy existing in any region. If quantum fields are everywhere, according to Heisenberg's uncertainty principle, there will be an inherently uncertain amount of energy present in that region over any chosen duration of time.

The shorter the duration we observe, the greater the uncertainty in the energy amount. Considering all possible quantum states, we can envision fluctuating fields and particle-antiparticle pairs that sporadically appear and disappear due to the Universe's various quantum forces.

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Velocity, Acceleration, WOrk, KE, PE,Newton, and more

2nd MP quarterly for Mrs. Poodry
Devon Towell, Pr. 1, Grade 11

To be watched on mute

In this video of Physics with Dummies, we explain how the laws of physics come into play to determine the outcome of this risky experiment called: Magnet wrecking ball VS Laptop screen!





Key concepts (simplified):
- Magnets have magnetic fields around them.
- A varying current generates a magnetic field.
- A change in a magnetic field near a conductor induces a current, which generates a magnetic field that opposes this change.

Links to sources and more information:
- Faraday Law of Induction (https://www.britannica.com/sci....ence/Faradays-law-of

- Lenz's Law (https://www.britannica.com/science/Lenzs-law).

- Eddy currents (https://en.wikipedia.org/wiki/Eddy_current).


Feel free to comment and tell us what you think about the video and how we can improve.

The clip we used at the beginning of this video is from a video made by Go Experimental (https://www.youtube.com/watch?v=2YD_WyT-n5s), go check them out!

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First video ever.
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Quantum physics for dummies: what are electrons?
Everyone knows electron are particles. But are they, really? Quantum Physics is not so straightforward. Particles can sometimes behave like waves. So, is electron actually a wave? Technically, not either.

A simple experiment, called the double slit experiment first proposed by Thomas Young, proves that electron can sometimes behave like a wave. But, what is it that is waving? There is something that controls the electron. It is called wavefunction. But, we cannot see it. It's hidden from our perception and we can only see its' effects. Sometimes.

Next videos will cover more quantum weirdness. Turns out, quantum particles can be kind of influenced from the past.

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Physics

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