104,792 reputation
4154282
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 8 months
seen 9 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.


Jun
5
comment Is quantum gravity, ignoring geometry, the theory of a fictitious force?
@NikolajK: I mean no comment on string theory other than at least it's a known avenue (even if it eventually turns out to be a dead end). Any ideas for reformulating QM are gratefully received - I know of none that have entered the mainstream.
Jun
5
answered How much energy in form of heat does a human body emit?
Jun
5
comment Does cosmological time expand like space does?
John, I've linked what seems to me a better duplicate than the one Rob suggests.
Jun
5
comment Does cosmological time expand like space does?
possible duplicate of Does time expand with space? (or contract)
Jun
5
answered Hyperbolic geometry in SR
Jun
5
comment Virtual Particles and Causation
See this article by Matt Strassler. Virtual particles are more of a mathematical device than a particle.
Jun
5
comment Is quantum gravity, ignoring geometry, the theory of a fictitious force?
The first question you link is the key one. For Einstein's equation to make sense we have to either quantise the left side or classicalise the right side. It's hard to quantise gravity but at least we have some promising avenues (string theory). The prospect of converting QM to an underlying classical theory seems exceedingly unlikely.
Jun
5
comment Principle of locality
@Rahulkumarwalia: that's the definition of non-local. A local interaction happens at the same spacetime point for all the systems involved, while a non-local interaction doesn't.
Jun
4
answered Is proper time a vector?
Jun
4
comment I would like to know, what would happen if a primordial black hole mass of Earth, would impact with the Earth
possible duplicate of If there was a black hole on earth, what would it look like?
Jun
4
reviewed No Action Needed I would like to know, what would happen if a primordial black hole mass of Earth, would impact with the Earth
Jun
4
answered Why is the phase velocity used in the definition of the refractive index?
Jun
4
revised Principle of locality
Typo
Jun
4
answered Principle of locality
Jun
4
reviewed No Action Needed Projectile motion - ball hit 180m/s at 45 degrees, what is the hang time?
Jun
4
reviewed No Action Needed Water Pressure Calculation for a volume of water at a given height
Jun
4
reviewed Leave Open AdS Space Boundary and Geodesics
Jun
4
comment Does a surface in front of a radiator (not in contact) have a significant effect on the room's temperature or heating rate?
Not necessarily. The air is obviously hotter near the radiator because it hasn't been diluted as much by the colder air in the rest of the room. So you'd expect objects nearer the radiator to be hotter. The objects heated by the radiator will themselves be heating air and therefore warming the room.
Jun
4
answered Does a surface in front of a radiator (not in contact) have a significant effect on the room's temperature or heating rate?
Jun
4
comment Is Michelson-Morley experiment an axiom?
Related, and possibly a duplicate: What is so special about speed of light?