143,460 reputation
12244402
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 6 months
seen 1 hour 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.


2d
comment The Velocity of subatomic particles
Can you clarify why you think this might be an issue? In the LHC we prepare protons travelling at very, very similar velocities. Are you thinking that no two particles can ever move at exactly the same velocity because velocity is not a rational number?
2d
reviewed Reviewed What exactly is closed orbit theory and what assumptions go into it?
2d
reviewed Leave Closed Calculating deceleration time - help!
2d
reviewed No Action Needed Rotate a small wheel using magnets
2d
comment Isn't a physical frame of reference useless for calculating speed?
Whether using the word distance in this context does any harm I'm not sure, but for completeness I'll change it to displacement.
2d
revised Isn't a physical frame of reference useless for calculating speed?
Hmmm
2d
comment Isn't a physical frame of reference useless for calculating speed?
@YugankaSharan: Speed is the magnitude of the velocity, so everything I say about velocity applies to speed as well
2d
answered Isn't a physical frame of reference useless for calculating speed?
2d
reviewed No Action Needed Isn't a physical frame of reference useless for calculating speed?
2d
comment Why does a free-falling body experience no force despite accelerating?
@AdamJames: I've edited my answer to respond to your comment
2d
revised Why does a free-falling body experience no force despite accelerating?
Respond to comment
2d
answered Why does a free-falling body experience no force despite accelerating?
2d
revised Gravity's tall box with a ball inside - scenario
Add diagram
2d
answered Gravity's tall box with a ball inside - scenario
2d
comment Density and behaviour of gravity
possible duplicate of How fast a (relatively) small black hole will consume the Earth?
2d
reviewed Leave Closed If time is relative, how could time pass?
2d
reviewed Close Why is the equation for electric potential energy so counter-intuitive?
2d
reviewed Close Do atoms behave like waves?
2d
reviewed No Action Needed Double slit experiment observation
2d
reviewed No Action Needed Density and behaviour of gravity