Відео

Revisiting this after one year: The early galaxies detected by JWST are in fact a lot bigger than expected. I'd love to have a follow-up on this by the marvelous Dr. Copeland.

Well explained 💯💯💯

So nothing really touches. 👍 awesome

"greenhouse effect" physics, simple as pie (simpler than pi). There are 1,200 times as many H2O gas molecules in the troposphere as there are in the surface below. There are 1,000 times as many CO2 molecules in the troposphere as there are in the surface below that manufacture all the radiation that heads up from the surface within the CO2 absorption-manufacturing band. The greenhouse gases (GHGs) molecules in the troposphere overwhelmingly outnumber molecules in the radiating surface below it. Total surface radiation is ~1.65 times as much power as all the Sun's energy that Earth absorbs, so therefore the GHG molecules in the troposphere manufacture about 2,000 times as much radiation as all of the Sun's energy that Earth absorbs. Comparing these vast quantities of molecules, the vast radiation manufactured, with IRRELEVANT N2, O2 & Ag molecules is the rubbish of a silly Troll-Parrots. Published physics source: "The Response of the Ocean Thermal Skin Layer to Variations in Incident Infrared Radiation" by Elizabeth W. Wong and Peter J. Minnett Nature Published online 6 APR 2018

This explanation is pretty accurate without being that complicated. Wondering, why people come up with really strange theories about this...

This didn't age well. Actually, asking a cosmologist about string theory is probably not the best idea this channel has ever had. Don't they have access to any actual string theorists? At one point there were a lot of them about.

I mean no disrespect to Professor Merrifield when I saw this, but all such research is just bunk. So, you see all these "biomarkers" in a planet hundreds or thousands of light years away. For one thing, because some molecule is produced in one way on earth, that does not mean it is going to be the same elsewhere. The only way to be sure is to go there, do detailed studies and take samples. Do you see the issue yet? Of course, all of all these investigations only apply to "primitive" life. There is no guarantee that such life will develop into more complex forms. Also, since, taking Earth as a model, the evolution of this primitive life will most likely take millions of years according to current theories. See the problem yet? So, we can't get there to do any proper analysis. If there is such life it may be millions of years before it becomes interesting. This is kind of a waste of time. You won't be able to prove or disprove anything. The more fruitful search would be for signs of industrialized or advanced forms of life. Given the age of the universe and its size, it is probably just as likely that they would have developed by now as well. We did. They would also put out "civilization signatures" that are far more definitive than some byproduct molecule which can occur naturally. This whole field of study is more like anthropology without the possibility of finding the skulls or bone fragments that can be studied in detail. Don't forget, one new bone can also totally upend all the current theories in anthropology, and you never know when you are done.

As far as I can tell, the usual interpretation of MWT violates time (CPT) symmetry, which is one of the most fundamental corner stones of physics, including quantum mechanics. Why would the world line split only in the direction of the arrow of time (future), and not the other way around? Our perception of the arrow of time follows from the second law of thermodynamics, which as far as we know is an emergent - not fundamental - law. The real problem, as usual, comes from (mis)interpreting the collapse of the wave function as a real physical phenomenon rather than an ugly ad-hoc mathematical trick to calculate the probabilities. If QM is fundamental, the observer and the measuring apparatus are just as quantum as the system with which they interact during the measurement.

Where are the space lizzards? We know their hands in the US affairs - just look at the Biden handlers dragging that carcass around the globe, but we cannot see them. How can one fit the data as to prove a preconceived idea? The science of illusions.

Basically there are no local hidden variables that can account for the relation in probabilities between the particles. There is no “plan” the particles could come to that would result in the outcomes we measure at different angles.

And that star has probably long ago burnt out and is no more yet we can still see its light headed towards us due to how long it takes to get here. EDIT: oh you mentioned it later in the video.

Mercury is also very poisonous and toxic and an environmental concern. Why not use a metallic silver mirror? Yes you would need to keep it heated while spun but it is also more reflective than mercury. Also silver is lighter. All these moon telescopes are nice dreams. But we have people in our own country right now telling women what they can and cant do with their bodies and wanting to jail them for it. We have a guy running for president who is a known criminal, a felon. And we have a large group of people that think scientific facts are fairy tales and ignore anything right in front of their eyes for what some guy in a bunker might say is real.

thats the best and most comprehensive explanation i ve seen so far - lets see what the next 10 videos of that kind trying to explain what lift is :)

Even in his definition there is no contact. Electrons lock atoms together at a distance.

I don't understand how you get a continuous gradient of force out of the pauli exclusion principle. I also don't get why electrostatic repulsion isn't enough to bounce particles off of each other. To bring two electrons to the exact same point would require you to climb an infinite potential; there isn't enough energy in the universe, so how can that be insufficient? Does the exclusion principle kick in before it even gets that far? And if it's just a raw prohibition, not a force, then why does it work at a greater distance than the Planck length? Or, is that interpretation wrong? Is there a gradual potential increase as the two particles get closer together that doesn't require an electrostatic force?

If black holes were truly a singularity as advertised, with no dimension, then they would never merge, they would just keep going in ever tighter orbits because no matter how small the orbit it's always bigger than zero, a singularity,

Thanks I was so confused in class but you explained it so well, I'll be able to know it for gcse's on tuesday

'cares theory' ?

Betelgeuse = bat - al - jouz

Well, after the dust has finally settled, I wonder what he thinks about string theory in 2024 ?

8:30 might you be able to offset the tilt with magnitism? A grid of electromagnets along with a processor etc.

How can 0.04% of CO2 have any effect?

I play video games for long time ago and I always pay a lot (💰) to get maximum FPS (Hz) in my games which today I have 360hz screen that i believe its maximum for this days (2024). Question: what is "FPS" of REAL LIFE ?

Can you do the float glas process with these parabolical liquid surfaces? That way you could actually make large parabolic mirrors very easily. Ofc, glass has such a high melting point but if the application can handle a larger thermal expansion coefficient, then you could also fo that with a thermoplastic.

If you turn the device, the question is, left or right? The particle can only be up or down, you ask the machine, up or down, and the machine can only answer left or right, so the machine cannot give you an answer you are looking for because it does not have that option, you automatically transform the 50/50 particle, if the machine can't give you an answer because it can't, it doesn't mean that the particle doesn't have a position

Jamaican reggae another planet 😂

It finally makes sense

Jamaican reggae another planet 😂🎉

Dr. Becky is a treasure.

Lots of scientists got Nobel prize related to lasers. A laser light is a Bose-Einstein condensate of photons which follow Bose-Einstein statistics. Professor Satyen Bose was not awarded a Nobel prize. I think it was because he was a dark skinned Indian living in pre-independent India.

I am impress in your confidence explaining this classic instability with nonsense arguments, please read chapter 1 of any basic book in hydrodynamic instability.

Ivan also wrote an interesting paper on the shape of point-spread functions.

When electron emit energy n comes down it's mass should come down but less mass electron to goaway from nuclie as force of attraction will be less.

I don't want to pay so shut it down

As Bohr corrected Heisenberg, this is wrong because the electron didn't have defined values for position and momentum to begin with. So there was no well defined value for the photon to change.

Marbles are more fun using B O 😂

Wouldn't you know it. Both Newton and Einstein went against convention and believed light were particles.

That description of CCD sensors was kind of messy, and that process can be done in software with any type of sensor. The key reason for using CCD sensors was / is their low noise compared to other types. CCD was the type of sensor used by virtually _every_ high-end video camera until CMOS sensors (currently more common) became so dense and so cheap that they effectively overtook them (they still have worse quality "per pixel", but you can make them with a lot more pixels for the same money, so you end up with more detail across the image as a whole, as long as you don't mind the noise when you zoom down to individual pixels).

Heating mercury and breathing the vapours would be somewhat dangerous in the long term and having some mercury _salts_ (i.e., "organic mercury") in contact with your skin could be very dangerous in the short term. Spinning (or even handling) _metallic_ mercury is _not_ "very dangerous" by any sane definition of the words "very" or "dangerous" .

So he is saying we still need the soeed if 10 to the 27 to see a electron... maybe just admit its a wave and not a particle🎉

An anchor and canon from one of the ships was found 6 kilometers or 3. 5 miles away from the explosion.

It is like saying," Am I big or small?" Well, it depends on your perspective. You can not define the constant because you are, because of it.

this was phenomenal

I'll bet the first pico-second laser experiments were giant finicky monstrosities that were completely unsuitable for "real" lab work. Now he has a little box on his table that generates them with relative ease. This, I figure, will happen with Attosecond lasers fairly quickly. Just my hunch...

to win a Nobel prize: step 1: have a cunnie on your team

Don't have to use a spinning bowl with mercury. The mercury will spin itself with an electric field

5:22 Bio-markers are used in medicine and medical field to mean different things, I would strongly refrain to use "Bio-makers" if you want to talk about signs of life.

Wouldn't the paraboloid get all warped due to the rotation of the earth? It's like a giant gyroscope.

Due to how low speed light is the engineers searching for ET are actually intergalactic archeologists.

So, if dark matter is everywhere, why does the solar system have a rotation curve dfferent from the galaxy?