If you were to travel different multiverses, some of these multiverses have earths just like ours. Some are exactly like ours with you and me and the rest of us, but in different timelines. If we were to create a machine to correctly find these universes, then in a 4D perspective, you are time travelling.

Comment down below on your thoughts/

is there ANY difference to eye strain/damage by reading text on a paper vs ereader vs tablet?
assuming it is the identical text and the room is lit.

https://youtu.be/d09VxlONKWY
with what program?

I need some input or advice on my situation. So, I recently have just been accepted into a top ten veterinarian school. I know veterinarian is STEM, but it is not the kind of STEM most people talk about on this sub. If you are curious about my undergrad, I majored in chemistry. Okay, back to the main point I am not sure if I want to take the MCAT and go to medical school or become a veterinarian. My parents want me to go to medical school. They see a career as a veterinarian as a joke because it does not pay nearly as much as a doctor does. My parents say you will be in a lot of student debt and will not pay it off later in life than if you were to become a doctor. I am not sure what to do. I always loved animals and being around them. I am not sure if I should forget Veterinarian school and listen to my parents' advice to take the MCAT to become a doctor or become a veterinarian and be poor?

whats wrong with my tongue

this fissure in the middle is raised and painful and this yellowness is also new. Is it thrush? pls halp

Okay, Time for the million dollar question.

We have all seen the hybrid immunity vs natural immunity vs unvaccinated graph.

Now granted that the completely unvaccinated can become naturally immune via exposure I think it's fair to remove them from the comparison.

So we have hybrid immunity vs natural immunity in the thumbnail it's the lines way down at the bottom of the graph.

Now what I believe these immunological fucks need to quantify is the combined exposure risk in the hybrid immunity group (c19 exposure and vaccine exposure) vs the exposure risk in natural immunity (just c19).

I think it's obvious that with any small semblance of a correction for underreporting bias that hybrid immunity is too expensive on the body.

In my classical field theory classes I have an easy time understanding most topics. I think this is because I have a good conceptual understanding of the tools used. Lagrange equations and such. However, I find I am having much more trouble in my quantum classes. I cant get the same conceptual understanding. Anyone have any ideas how to fix this? Here are some questions I have that I think might help

What exactly is an operator, "an observable sure" but why do we say its a matrix. What does it mean if we have some operator with entries in the whole matrix. If we have entries only along the diagonal, we say its Hermitian and these entries are eigenvalues. Eigenvalues of what? It was my understanding if you took some matrix you find eigenvalues for that matrix, not that they were present in the matrix. Is a Hermitian matrix with eigenvalues in the diagonal just a matrix of eigenvalues of some other matrix?


Why do we represent functions as bras and kets. If we had some function y=x^2, is a bra all x entries and the ket all y entries in this function?


Retarded I know but can I get a quick summary of eigenvalue/vector. Like is a eigenstate a eigenvalue? ect


Any ways you use to help get an understanding of qm would be appreciated, ill likely post more question if I get answers, thanks.

Scientifically speaking, you should kill yourself

do aufbauiggers really

How good are IQ tests at measuring intelligence?

Is there a better, more quantitative and universal method to measure intelligence?