132,048 reputation
8221365
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 3 months
seen 6 hours ago

Semi retired old time computer nerd who started programming on a Commodore Pet.

Since I'm also active in the Physics forum I should add that I started as a theoretical chemist, moved into solid state photochemistry and finally worked in industry as a colloid scientist. I only became a full time computer nerd in 1997.


Apr
18
comment Is it possible to travel ONLY through Time and not Space?
@DreSam911: no, many of the things in science are not "Meaningless". We go to great trouble to make physics a precise and quantitative endeavour. It is certainly true that many ideas appear to be meaningless to non-physicists, but as you learn more about physics you'll find this isn't the case.
Apr
18
comment Is a photon always in a state of superposition while traveling through space?
@briankirkby: quantum field theory is a huge and complex area and my summary of it here is just a charicature. However I think it captures the basic principles of what is going on. There is an elementary description of how QFT describes the Young's slits experiment here, though in this context elementary means non-nerds won't understand a word of it! Your questions 2 and 3 are huge questions in their own right, but see this search for some comments I've made on it here.
Apr
17
comment How much water is needed for Saturn to float in?
Three downvotes? Really? It's not an awesome question, but it is really that bad?
Apr
17
comment How much water is needed for Saturn to float in?
This article does the calculation for you. However note that Saturn isn't a rigid body and if you attempted to make it float the core would sink through the water and the outer layers would spread over the water.
Apr
17
comment Black hole with two singularities?
@MarkN: Google for black hole uniqueness theorem or see this paper. However be warned that it is exceedingly hard going. I don't understand a word of it :-)
Apr
17
comment If we go to space why isn't the temperature high?
Not my downvote, but you are asking questions that could be answered with a bit of Googling or in this case searching this site. This site is intended for working physicists, and we expect members to have done some prior research before posting a question.
Apr
17
comment If we go to space why isn't the temperature high?
possible duplicate of How can interstellar space have a temperature of 2-3K?
Apr
17
comment Can we prevent metal corrosion by creating a vacuum around it?
I was a bit surprised at the downvote. This is a basic question but a perfectly fair one.
Apr
17
comment Why can I feel the air inside the pump pressing against my finger when it is at 1 bar (atmospheric pressure)?
Related: Gauge pressure vs. absolute pressure?
Apr
17
comment Why can I feel the air inside the pump pressing against my finger when it is at 1 bar (atmospheric pressure)?
Yes, the pressure in your pump is 2 bar.
Apr
17
comment Gravitational Time Dilation Near Center of Gravity
See also the higher you go the slower is ageing
Apr
17
comment How many solutions to the Einstein Field equations are known?
See this Wikipedia article or Google for many similar articles.
Apr
17
comment Ground state wave function of Symmetric potentials
That would mean the particle has zero probability of being at the origin, which seems rather unlikely.
Apr
17
comment Does a pendulum oscillate in liquid
To a good approximation the pendulum in liquid can be described as a under damped harmonic oscillator. Googling this phrase will find lots of info or see Does damping force affect period of oscillation? on this site.
Apr
17
comment Quantum Mechanics for 1D box
Hi Rahul and welcome to the Physics SE! Please note that this is not a homework help site. Please see this Meta post on asking homework questions and this Meta post for "check my work" problems.
Apr
17
comment Why isn't $g$ larger on the equator?
Hi Hattie. It's always worth a quick search of this site as you'd be surprised how many questions have been asked before. In this case the link I've suggested precisely answers your question.
Apr
17
comment Why isn't $g$ larger on the equator?
possible duplicate of Why is Earth's gravity stronger at the poles?
Apr
17
comment What is the maximum of information in a beam of light?
Why the downvote? This seems to me to be a perfectly good question.
Apr
16
comment Quantum mechanical tunneling
I have voted to reopen because I feel the question can be answered in a way that is beginner-accessible but not (too) misleading.
Apr
16
comment What are the state variables like temperature after the system has done an adiabatic irreversible process?
Hi Muthi and welcome to the Physics SE! Please note that this is not a homework help site. Please see this Meta post on asking homework questions and this Meta post for "check my work" problems.