Group for discussion on astronomy and general physics. Math group: http://t.me/mathsgroup Astrophotography: @astronomy_pictures Please read the rules and make sure to abide by them for a peaceful journey. Rules : https://t.me/AstronomyGroup/126419
It must be somewhere on Google why not find there?
Читать полностью…New members please go through the rules. You can see the rules by typing /rules. Try to have productive discussions here. Please check the guidelines for Asking Good Questions
Читать полностью…Astrophysical Journal in the news
Astronomers find galaxies in denser environments are as much as 25% larger than those in less dense regions
A team of astronomers using a Yale supercomputer have determined for the first time that galaxies in denser environments are as much as 25% larger than their counterparts in less dense regions of the universe.
https://www.instagram.com/reel/C7UQ9mLNivv/?igsh=ZDZsbjFsaWE1NTlq
Читать полностью…Hello everyone, I want to learn more about black holes and please recommend me some good books and articles.
Thanks.
A belt from 30AU(from sun) to 50AU(from sun)
Читать полностью…Yaa but to qualify for imo you should clear first ioqm and all
Читать полностью…Yes the Olympiad like imo,ipho are available tiithe age of 20/21
But after coming to college you have much more things to Focus on
As such there is no Olympiads for college students in ioqm level,
Yeah there are multiple competition are there at national and international level
You can just google them out none in my mind at the moment btw what is your degreee
Читать полностью…There are Olympiads for college students what is the loss in asking the concerned persons
Читать полностью…I am sure no chance, Olympiads are for school students only
Читать полностью…Astrophysical Journal in the news
NASA telescopes work out black hole's feeding schedule
By using new data from NASA's Chandra X-ray Observatory and Neil Gehrels Swift Observatory as well as ESA's XMM-Newton, a team of researchers has made important headway in understanding how—and when—a supermassive black hole obtains and then consumes material.
Astrophysical Journal in the news
New analysis of Webb data measures universe expansion rate, finds there may not be a 'Hubble tension'
We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number—known as the "Hubble constant" —have come up with different answers, leading some to wonder if there was something missing from our model of how the universe works.
Black holes are fascinating and complex objects in the universe, with implications in both physics and cosmology. Here are some recommendations to get you started:
### Books:
1. "Black Holes and Time Warps: Einstein's Outrageous Legacy" by Kip S. Thorne
- A comprehensive and accessible introduction to black holes, written by a leading physicist.
2. "The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics" by Leonard Susskind
- A personal account of the scientific debate on black holes and information loss, providing insights into quantum mechanics and general relativity.
3. "A Brief History of Time" by Stephen Hawking
- A classic that discusses black holes among other key concepts in cosmology, aimed at a general audience.
4. "Black Hole Blues and Other Songs from Outer Space" by Janna Levin
- This book focuses on the history and science behind the detection of gravitational waves, with black holes playing a central role.
5. "The Science of Interstellar" by Kip S. Thorne
- For a mix of science and pop culture, this book explains the real science behind the movie *Interstellar*, with a focus on black holes.
### Articles:
1. "The Case for a Small Creator: Black Holes and the Laws of Nature" by Roger Penrose (Scientific American)
- An article by one of the leading theorists in the field that explores the nature of black holes and their implications for our understanding of the universe.
2. "Black Holes: The Einstein-Rosen Bridge and the Holographic Principle" by Leonard Susskind
- A detailed exploration of some of the most intriguing ideas in black hole physics, suitable for readers with some background in physics.
3. "The Information Paradox in Black Holes" by Don N. Page (Nature Physics)
- This article delves into the problem of information loss in black holes, a major issue in theoretical physics.
4. NASA's Black Hole Primer
- A more introductory set of articles on black holes, accessible via NASA's website, offering explanations from basic to advanced levels.
These resources should give you a solid foundation in understanding black holes from both a scientific and a theoretical perspective.
GPT🤖
New members please go through the rules. You can see the rules by typing /rules. Try to have productive discussions here. Please check the guidelines for Asking Good Questions
Читать полностью…✨✨Ask good questions✨✨
We all are here to learn and each one here is at a different level of expertise.
But no matter who asks or what question is being asked there are general guidelines to ask good questions.
- Google search it
- Attempt to figure out answers yourself
- Show proof of your attempt
- Explain what you've read, where you read them and how you understand it.
Examples of GOOD questions:
1: "What is the radius of the universe"
My research came across 3 different numbers
This link says it's 20 billion years and this other link says it's 13.8 billion and this last link says 96 billion years.
What's the actual number..?
2: "What is the energy of an ideal carnots engine if the heat source is at 350 K and heat sink is at 200 K"
This is my attempt at the problem can't someone explain what is wrong in the solution: (post a picture of your working)
Examples of BAD questions:
1: What is the radius of the universe?
(Reason: you can easily find this answer on Google)
2: What do you think about relativity?
(Reason: You will never get the right answer because it's asking for Opinion and it's not specific)
3: "Please answers this question (posts question) pls... pls... pls... pls... pls..."
(Reason: we are not being paid enough to do homework for you. And we won't risk enabling another horrible scientist or teacher of the future into the system)
4: don't ask to ask, just ask
Q:Any Astrophysics experts around?
This is bad form, for several reasons. What the person is actually asking here is,
Q:Any Astrophysics experts around who are willing to commit into looking into my problem, whatever that may turn out to be, even if it's not actually related to Astro or if someone who doesn't know anything about Astro could actually answer my question?
more at:https://dontasktoask.com/
Then u r going to have your course load,and in mechanical u will have lots of interesting stuffs, robotics, machine design,engines, mechanics etc i should explore them
Читать полностью…As per my knowledge there is no such good Olympiad at college level,but I know lots of other competitions
Читать полностью…I called them they are not picking even i mailed them
Читать полностью…