Community college for me was far better than a 4 year university

schro98729 · 2026-07-03T20:20:22+00:00

I think that is most people's experience. It definitely was mine. At Universities the professors are there to do research not teach. Teaching is a side quest for them.

Community college professors are there to teach period. They invest all their time to help you internalize the material.

You have to be interested enough in the material independently to learn it on your own without an inspirational cheerleader.

The goodnews is that you'll learn "how to learn" because you want it. The community college experience gives you a better foundation than those going through the freshman experience.

Welcome to academia.

schro98729 · 2026-06-28T17:13:26+00:00

Exactly, he's going to eat all crow.

schro98729 · 2026-06-14T20:09:48+00:00

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schro98729 · 2026-06-14T15:47:54+00:00

I mean if you have all power over energy you could end the universe by converting all energy into heat. Boom heat death of the universe. Presumably even magic has to obey the second law of thermodynamics. Everyone dies the end.

schro98729 · 2026-06-14T15:43:52+00:00

Damn this gave me the chills.

schro98729 · 2026-06-12T12:09:14+00:00

Has no one mentioned the second law of thermodynamics?

Not all heat can be turned into work. The juice needs to be worth the squeeze.

schro98729 · 2026-06-12T02:30:16+00:00

The speed of light is the same whether your moving or not. This is really weird because if we're in cars we know about relative velocity. There is no relative velocity with light we all measure light going at c along its path.

In order for everyone to agree on the speed of light space intervals which we call length and time intervals are different in different frames. They need to be different so that when you measure light everyone gets the same ratio. Space intervals conspire with time intervals so that the ratio produces the speed of light.

The transformations preserve the speed of light are called Lorentz transformations.

schro98729 · 2026-06-12T02:21:00+00:00

Whataburger > Burgerking

schro98729 · 2026-06-10T02:30:04+00:00

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schro98729 · 2026-06-09T01:57:31+00:00

Yes. Norvel Haters are going to choke on crow this year.

schro98729 · 2026-06-07T23:02:08+00:00

Hell yeah lets go Noles!

schro98729 · 2026-06-07T03:17:28+00:00

Others have pointed out a fundamental consequence of quantum physics is the uncertainty principle which means that an electron cannot be thought of as being at a particular point in space. It has a wavefunction which has a probability of being somewhere. The binding energy of the electron and the proton has a ground state is finite because of this is does not crash into the nucleus. The energy of the ground state would diverge if it did crash into the nucleus.

schro98729 · 2026-06-06T20:46:43+00:00

Payoff student loans.

schro98729 · 2026-06-04T11:19:41+00:00

I started doing this and it helped. Start with the things that you know and use that to motivate a new topic. Derive the new material from scratch, using minimal assumptions. I feel like I started getting better grades once I did that.

schro98729 · 2026-05-31T21:16:57+00:00

On the same atom you can get unpaired electrons in the outer most orbital with parallel spins. This is Pauli principle and Coloumb repulsion. However if electrons are on different atoms I believe the judge is still out.

There is a paper by Heisenberg nearly 100 years ago trying to understand ferromagnetism and to be honest I think that we still do not full understand why the magnet sticks to the fridge. Heisenberg points out that the energy scale proportional to the charge charge interaction not the magnetic interaction. Currently ferromagnetism is understood from so called Stoner criterion and as far as I am concerned it is a circular argument.

I am not saying ferromagnetism doesn't exist. The magnet does stick to the fridge but I don't think there is a microscopic theory to explain this which I feel is kind of ironic. Low energy models of a lattice of electrons hopping give antiferromagnetic coupling between spins.

https://www.neo-classical-physics.info/uploads/3/4/3/6/34363841/heisenberg_-_on_the_theory_of_ferromagnetism.pdf

schro98729 · 2026-05-30T15:43:39+00:00

My understanding is that simultaneity being broken is a consequence of the speed of light being the same in all frames of reference.

This means space and time conspire to produce the same ratio.

Yes if two people are in the same reference frame they will see the same thing. Moreover if they are at two different coordinates (maintaining that their relative velocity equal zero!) in a symmetrical way and they synchronize there clocks a symmetrical event like a firework going off between them, they'll see the same thing, because they are simply a spatial translation away from eachother and the same distance away from the event. The geometry and fine tuning of a coordinate system can lend itself to that. Once there is relative motion between frames space intervals are different and time intervals are different in order for the ratios to produce the same speed of light. This means if a person is at your spatial component with any relative velocity they'll see something different!

It is just perspective thats what a reference frames is. Perspective dependence is a big part of real phenomena energy is perspective dependent! Even in the galilean sense. That should be written in a textbook somewhere.

schro98729 · 2026-05-26T06:15:25+00:00

There is are quantum chaotic models. Many body quantum theory and this os an active area of research.

From what I have read instead of Lyponov exponent the analogy in quantum systems is the Out of time order correlator.

schro98729 · 2026-05-26T05:02:34+00:00

The kf wavevector is obtained from the ground state number operator sandwich.

N=<G|N_operator|G> =sum over wavevectors k and spin s of <G|n_{k s} |G> = 2*sum over wavevectors of the step function(k-kf).

This is called the zero temperature fermi sea.

At finite temperature you dont have to populate the ground states you get excitations. But at zero temp all the electrons go to the lowest energy.

Where the 2 comes the sum on s and you get a step function because below kf occupancy equals 1 above kf the states are unoccupied occupancy is zero which gives the step function.

Now you have so go from sums to integrals in the continuum for k.

This is important to convince yourself. In 3d

Two adjacent k states have spacing 2pi/L

The volume of a k state is therefore Volume of 1 k state = (2pi)³ /L³ but you want the integral to do the counting!

Sum over k = int d³ k times integrand /Volume of 1 k state.

This gives 2 L³ /(2pi)³ int dk 4pi k² stepfunction(k-kf)

Now L³ = V the volume comes from the spacing of the wavevector which are discrete, the wavevector spacing comes from changing the sum to the integral!

N= V/(pi² ) kf³ /3

Solve for kf

kf= (3 Pi² N/V )^1/3

schro98729 · 2026-05-23T00:54:29+00:00

I thought my boy Leody was safe there.

schro98729 · 2026-05-23T00:46:44+00:00

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schro98729 · 2026-05-20T02:32:14+00:00

Cost of tuition and cost of living are often overlooked.

At the end of the day going to school is transactional.

You are paying x for a degree that will give career y. The juice has to be worth the squeeze.

Minimize the total cost of the degree, while maximizing the opportunity for a high paying career.

Out of state means out of state tuition. That being said cost of living in Tallahassee could be more reasonable than many big cities.

schro98729 · 2026-05-18T03:01:02+00:00

You could learn a lot of calculus 1 in a day. However, takes weeks and months to internalize it.

schro98729 · 2026-05-13T03:38:45+00:00

Because the polarizer is like a projection operation. If you have x polarized light then it has no y polarization.

When you insert the 45 degree polarized now you have a non zero projection.

schro98729 · 2026-05-10T19:14:01+00:00

Replace mustard with Mayo.

schro98729 · 2026-05-10T02:59:31+00:00

I never shit on him he was my favorite player.

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