146,968 reputation
13250412
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 7 months
seen 2 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.


Aug
22
comment What happens if I pass electric current through conductor magnet?
Are you asking what happens to the magnetic field if we take a magnet and put an electrical charge on it? If so, the answer is nothing happens to the magnetic field.
Aug
21
comment If the flowing speed of river increase can the direction of river can be changed with respect to decrease in speed?
Google translate at work?
Aug
21
comment How to divert water flow by magnetic field or static electricity or electricity?
Related: What does really attracts a water stream to a charged object?
Aug
21
comment What is the tension at a particular point in this case?
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.
Aug
21
comment Traveling Back in Time at the End of the Universe
Hi Arnold. We have no accepted theory for what will happen in the far distant future (though there is no shortage of speculative theories). We also have no theory describing how time travel from the far distant future to a younger universe might work. So an answer to your question is going to be science fiction not physics. You might be interested to read up on conformal cyclic cosmology as this is the nearest thing to your idea that I know of.
Aug
21
comment Symmetrical twin paradox without changing direction
Please give us some idea of what you already done in your attempt to research this.
Aug
21
comment What is the difference between weight and mass?
Yes. Though to be honest in everyday life it makes little difference.
Aug
21
comment What are some surprisingly insightful predictions of classical thermodynamics?
Hi Tom. We generally discourage questions where the answer is a list.
Aug
20
comment A person who can think and deeply about things is called?
Hi Luqman. Try asking on the English Language and Usage Stack Exchange.
Aug
20
comment What the lifetime of a massless black hole of photons?
@ChrisWhite: all true of course, though I still think GR brings a new dimension to the meaning of unintuitive.
Aug
20
comment Is Hawking radiation valid for a microscopic black hole?
possible duplicate of What happens when a black hole dies?
Aug
20
comment Euclidean geometry in non-inertial frame
Google Ehrenfest paradox
Aug
20
comment can u plz help with these?
Hi Ann 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.
Aug
20
comment Inverse square law in one dimension
Hi 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.
Aug
20
comment can I maintain the temperature of a metal by electrifying it
The closest I can think of is the Peltier effect
Aug
20
comment Would opening a car door at high speed change the path of the car?
Hi Dopapp. This is a site for questions about physics. So you might for example want to ask about the equations that describe aerodynamic drag. But as it stands your question is not a good fit for this site.
Aug
20
comment Is there any reason for principle of least action to be true?
The question Why the Principle of Least Action? is also related.
Aug
20
comment Is there any reason for principle of least action to be true?
possible duplicate of How do I show that there exists variational/action principle for a given classical system?
Aug
20
comment Why is spacetime curved by mass but not charge?
@InderGill: we can. See Can all fundamental forces be fictitious forces?
Aug
19
comment On what basis do we trust Conservation of Energy?
@RBarryYoung: the technical meaning is that the action exhibits time shift symmetry. As a simplification, you can think of this as saying that the laws of physics don't change with time.