https://www.reddit.com/r/Physics/comments/hg5j2e/the_rebel_physicist_trying_to_fix_quantum/

https://snew.notabug.io/r/Physics/comments/hg5j2e/the_rebel_physicist_trying_to_fix_quantum/

]]>A few researchers behind the discovery of black holes:

- Subrahmanyan Chandrasekhar : Theorist who thought stars could become super-massive, more so than neutron stars.
- Yakov Zeldovich: Using X-rays from clouds of gas near a black hole, the gas was measured to accelerate near light speeds.
- Riccardo Giacconi: Used Zeldovich's theory with photographic plates to verify black holes.

Einstein, of course, had his Special and General Relativity theories that were heavily based on for further theories.

From this, the Twin Paradox spawned. For the time dilation equation that goes with it, click here

It's great to know a little bit of history to know how such a photograph came along, and it's best to not memory hole this feat along with others that have been buried in the last decade.

]]>This was not the case (obviously)

What Dr. Wang neglected to remember was Heisenberg's Uncertainty Principle. He was 'somehow' able to measure both the momentum and position of a particle, a big no-no in quantum and relativistic models.

Articles like this would inevitably pop up with such a 'breakthrough' happening. The unfortunate truth is that these media outlets all too quickly rush to make a story so that they can sell papers, which then turns disinformation into common public knowledge. People will still ask about this experiment even though it's been disproved multiple times, even as recent as that article.

Anytime I hear of a new study published by a university of some prestige, I always question it and usually cite this as an example. I encourage all of you to think partially the same.

While on the topic of the Uncertainty Principle, if you want to play around with quantum models, you can visit IBM's own page for computer-related QM or an interactive lab on the topic.

Mistakes are the best way to learn new information, but that doesn't mean you have to make them yourself. The key to doing good in physics relies on your ability to also learn from your own as well as key figures, classmates, or even your teachers' mistakes. Learn from Wang's mistake of rushing publication without sufficient peer review or find lessons that can apply specifically to you.

]]>Remember to check http://gen.lib.rus.ec/ to see if you can find any of those for free if they aren't hyperlinked.

]]>then you might wonder what the "easy method" is to find center of mass.

An easy way to solve a problem such as this https://coinsh.red/p/centerofmass.png is to first observe the problem. How is it being supported? How much mass does the beam have in relation to the block?

For this case, lets assume the beam has no mass at all and the block does have a mass of M. The entire beam in terms of length is L and the distance between the block and the nearest support is D.

To find the force of gravity on the supports, think of how the weight would be distributed if it were in the center. Mg/2 would be the magnitude each support would feel if it were in the center. How would that change if it were 1/4 the length away from one support? The closest support would have 3Mg/4 while the other would have Mg/4. How could we derive an equation from this?

If a block is D away from a support, it has the force of L-(D/L) Mg.

The most common method is using center of mass, but this method is useful if the problem is simple enough.

]]>to find the acceleration of the system net a = net f / net m

Latex: \sum\nolimits a = \sum\nolimits F / \sum\nolimits M

Now, this answer would be simple if the pulley were considered a point mass with rotational inertia of MR^2, but most are considered to be a disk, leaving a rotational inertia of .5MR^2

The change in the rotational inertia affects the equation:

Latex: \sum\nolimits a = Mg / (m_{1} + M_{2} + km_{p})

where k is a constant directly related to kMR^2

tl;dr mass of the pulley isn't directly mass into the system

I used http://quicklatex.com/ for the latex parts.

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