105,642 reputation
4156284
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 8 months
seen 29 mins 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.


Sep
27
reviewed Leave Open Giant Wind Chimes
Sep
27
reviewed Close how could I exist where I did not exist in the past?
Sep
27
reviewed Close Could a bubble of photons make a spaceship massless?
Sep
27
reviewed Leave Open What is “W external” and “W internal” in Energy conservation law?
Sep
26
reviewed Leave Closed Existence of a physics-god
Sep
26
reviewed No Action Needed side lifting lug load calculation
Sep
26
comment Is it possible for dot product and cross product of two vectors to be zero at the same time?
Amrit, I suspect ACuriousMind means it's a question about maths with no immediate physical relevance. Write down the expressions for the dot and cross products of two vectors $\vec{a}$ and $\vec{b}$ with an angle $\theta$ between them, and then set them both to zero and you should be able to see the answer.
Sep
26
answered Could Dust Equation of State have some negative pressure?
Sep
26
answered How do we estimate the amount of $10^{23}$ stars?
Sep
26
answered Why is the graph of CMB/black-body radiation asymptotic?
Sep
26
comment Expansion of the universe
As it stands your question doesn't make sense. You'll need to clarify what you're asking about. Note that energy is not conserved in an expanding universe because it has no timelike Killing vector.
Sep
26
revised Spaceship Doppler frequency
edited tags
Sep
26
reviewed Close Spacetime - Fact, Hypothesis, or Working Model?
Sep
26
reviewed Close Entropy changes with the reversible and irreversible expansion of an ideal gas
Sep
26
reviewed Close Is Water the only Liquid of Life?
Sep
26
reviewed Close Finding electric field of a line charge
Sep
26
reviewed Close Why doesn't this perpetual motion machine work?
Sep
26
reviewed Close Is it possible that our universe is oscillating between matter and antimatter at a high frequency? How would we know?
Sep
25
comment Alternating current means alternating voltage?
AC is generated using an alternator
Sep
25
awarded  Nice Answer