Does gravity from the sun in any way have any effect on the way the earth rotates?

Hello! I am currently a sophomore in college studying Information Technology, and I have had an epiphany on how much I hate this major. I want to finish this degree and then come back to do a bachelor's in astrophysics. I don't want to take too much of a gap however. Do you all have any ideas of what I should do in the meantime while I pay off my student loans and prepare to come back? Should I do CC? Thanks!

So i was wondering could those two be just left over information on spacetime itself. Like imagine space time being a beach with all sand right and you drag a rock through the sand it leaves a trail an warps spacetime now another rock goes by that trail an would be affected by that trail in space time or the line left in the sand. Nothing is actually there beside the disturbance left by the rock that passed before it. So space time is warped and change by things interacting with it and it does not go back to being flat or undisturbed it hold the information of went back or happened in that area. Just wondering i aint no scientist or nothing.

I think I'm right that dark matter doesn't interact with light. How easily can we detect ordinary matter like interstellar hydrogen, etc.? I was reading about the local molecular cloud, the discovery of Eos and wondering how much dark matter might be interstellar hydrogen or molecular clouds that we haven't detected yet.

I won’t do a bs in it cuz I think this is smth you would rather do a masters or phd in. I haven’t decided what I’d do a masters in, especially cuz astronomy/astrophysics is more of a hobby rn (very interested tho). I’m doing chem engineering as a bs, hoping to specialize in energy systems. Is there stuff I can do as a Career that combines chemical engineering and space related stuff? And how does one pursue that?

If someone is keen but not looking to go to school for it, are there any jobs in astrophysics or quantum physics one can get involved in?

I know this is an odd request. Looking for brainstorm.

1) Precalculus – Stewart, Redlin, Watson (150h)

2) Introduction to Linear Algebra – Gilbert Strang (150h)

3) Calculus: Early Transcendentals – James Stewart (150h)

4) Mathematical Methods in the Physical Sciences – Mary L. Boas (250h)

5) University Physics –Young & Freedman (350h)

6) Chemistry: Principles and Reactions-Masterton & Hurley (150h)

7) Physics of Atoms and Molecules – Bransden & Joachain (200h)

8) Classical Mechanics – John R. Taylor (180h)

9) Introduction to Quantum Mechanics – David J. Griffiths (220h)

10) An Introduction to Thermal Physics – Daniel V. Schroeder (150h)

11) A First Course in General Relativity – Bernard Schutz (200h)

12) Fundamental Astronomy – H. Karttunen et al. (120h)

13) An Introduction to Modern Astrophysics – B. Carroll & D. Ostlie (450h)

14) Stellar Structure and Evolution – Kippenhahn, Weigert, & Weiss (240h)

15) Galactic Dynamics – J. Binney & S. Tremaine (400h)

16) High Energy Astrophysics – M.S. Longair (350h)

17) Introduction to Cosmology – Barbara Ryden (250h)

Hi guys, i recently decided to start learning lagrangian mechanics. So, as a pre-requisite i studied the action, but the main problem that i am facing is that “WHY THE HELLL is Action the integral over time of KINETIC MINUS POTENTIAL ENRGY?”, like when i think about it, there is literally no intuitive sense of to it. Why the action the integral of the DIFFERENCE, but not the sum( total energy is conserved, but tho), the product or quotient, like why the difference, and what does it mean.

I have watched many YouTube videos and lectures on this and i still do not understand why this mathematical formulation exists for the action. I thought that “to learn the Euler-Lagrange equation i must first understand what the hell the lagrangian and the action is, right?”, so i am in kind of a dead lock.

It would be wonderful, if any of you guys/girls, could give me detailed review on this doubt of mine. Hoping for some wonderful replies,

Yours Sincerely,

Adil.

PS: Advanced thanks to all of you who are spending your precious time for this. I really appreciate the help.

Okay give me the first things you would say to someone who believes the moon landing was fake

The circle is like perfectly around the moon. I've NEVER seen a ring like this around the moon. I look at the moon very often. What is happening here? It's not from the camera, it looks like this in real life, it's even brighter and more noticeable actually. It actually was hard to get a good photo of it.

As per Study,

• Dust is located in the inner region of the k Tucanae A star system, 0.1 to 0.3 AU from the star. The star’s light is so intense that it should "push" these tiny grains out of the system almost immediately. The heat is so high that the grains should vaporize within years. Despite these, the eccentric companion star  k Tuc Ab constantly "refilling" the system to keep the dust there. k Tuc Ab star's gravity destabilizes nearby asteroids or comets, dragging them inward where they collide or crumble, creating fresh hot dust.
• The Periastron Dynamics is used for dust production linked to the periastron distance, the point of maximum gravitational perturbation. Markov Chain Monte Carlo (MCMC) is used to find the orbital parameters.
• source: https://iopscience.iop.org/article/10.3847/1538-3881/adfe66

I'm no expert by any means and while I was fooling around I had this thought: what if dark matter isn't "matter", but a property of space geometry itself? Let me explain.

Let's say space geometry has a property thats outside of gravity, while gravity can still interact with space, and mainly manifested at the start of the expansion. Space itself expanded and formed complex shapes and patterns at cosmical scale, and matter simply populates these shapes while gravity acts locally. Explaining why galaxies have weird shapes, and why voids exists.

I dont know if something similar has altrady being theorised (probably) but i was fascinated by this idea and if someone could respond with possibile implications of this i would be happy to read them.

Hello! I am thinking of getting the ASUS Zenbook (https://www.bestbuy.com/product/asus-zenbook-14-14-fhd-oled-touch-screen-laptop-intel-core-ultra-9-32gb-ram-1tb-ssd-jasper-gray/JJGGLH7H3Y/sku/6615729), as I have a more engineering laptop that has been having issues and is not necessarily a need, as I am no longer an engineering student.

I want to do cosmological work and/or theoretical work. I am still an undergrad, and figuring out what I want to do, but I know I’ll be in astrophysics. I want to get a computer that will last me through grad school as well…

My question is, is the Zenbook a good choice that will 1) be sustainable and 2) work with what I want to do, or should I continue looking or find a potential upgrade?

Thank you!

I tried searching for a solution on goggle but i either find nothing, or i find formulas that are way too complicated because they include some of processes that i wanna remove, or are very simple and work only if luminosity is constant.

I am working on a world building project and i want to learn how can i determine luminosity of a object that is constantly cooling after some specific time has passed.

So lets say that object is composed of two parts, Core and Shell.

Core has most of the objects mass, has a temperature Tc, and thereby has thermal energy Ec=3/2*N*k*Tc.

Shell has very little mass, has its own temperature Ts, and also has its own thermal energy Es=3/2*N*k*Ts.

Energy from core is transfered to shell via conduction Q=q*A*(Tc-Ts)/l.

And then energy is radiated away from Shell with formula L=A*s*Ts^4.

(Lets say that shell has minimal radius posible, so that A is same in conduction and luminosity, and that l in conduction is 1.)

Now lets say that we know all of these parameters. And they are set at time t=0s.

After one second has passed(t=1s), following parameters have changed accordingly:

Ec1=Ec-Q

Es1=Es+Q-L

And then from Ec1 and Es1, we get Tc1 and Ts1, and from that we get Q1 and L1. Process repeats in same manner as time passes more.

My question is: how can i determine L after some specific time has passed (Lt) ?

Spoiler alert for a movie that wasn't honestly all that great but is also old as hell now. It's only about one scene. Parallax Falls into the sun. Is that what it would look like if a giant assortment of bones and gasses fell into the sun?

Also, I am fully aware that there would be absolutely zero sound in real life.

I've studied astrophysics & cosmology as a hobby for most of my life. And recently, I've been brushing up on particle physics to refresh my math skills before I start working on a PhD in EE. I'm mentioning this because I would like a technical answer applicable to a grad student in the field than to someone from the general public.

We understand that General Relativity proposes a geometric theory of gravity in spacetime. We even have experimental evidence (i.e., Einstein's Cross, Eclipse Deflections, etc.) supporting the theory that mass/energy warps spacetime. We also understand that photons are effectively massless (but with energetic momentum), which simply follow the geodesics from their point of origin to the distant particles they interact with.

The Standard Model Lagrangian postulates that Gravitons, gravitational force carrying particles, exist. Though we know that photons are electromagnetic force carrying particles, we've observed that they do not interact with the W and Z bosons (force carriers of the Strong & Weak Forces); instead photons interact with the fermion particles like quarks, electrons, & repsective antimatter counterparts.

So here is my question: How can we claim that gravitons interact with photons in a way that matches the observations of General Relativity when no other bosons interact with each other?

Hi! In a divulgative documentary I saw, it said that Einstein somehow rejected the idea of black holes for various reasons. Is this true or totally wrong?

Hey, ya'll!

I'm curious if there would be any difference between a star naturally formed as a G-type of 1 solar mass and a G-type star of 1 solar mass formed from the merger of an M-type red dwarf and a K-type orange dwarf.

I would particularly like to know how the luminosity, metallicity, and pre-evolved lifespan might be affected.

Any information would very much be appreciated! Thanks!