136,232 reputation
9228378
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 4 months
seen 11 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.


Feb
10
reviewed Close Mass spring system, elongation of the spring
Feb
10
reviewed Leave Open Wigner-Yanase skew information
Feb
10
reviewed Close Statics with ladder and wall
Feb
10
reviewed Close Lens with a mirrored coating
Feb
9
answered Can I manually speed up convection?
Feb
9
answered Second Law for Rotational Motion
Feb
9
reviewed Delete Why is electric field zero inside a hollow metal sphere ?
Feb
9
reviewed Leave Closed Why is there no induced electric field in the experiment (Faraday's Law)
Feb
9
reviewed Close The Concepts of Path Integral in Quantitative Finance
Feb
9
reviewed Leave Open $\mathrm{\rho^0}$ meson decay via the weak interaction?
Feb
9
reviewed Close Why do we theorize that the Big Bang created space?
Feb
9
reviewed Leave Open How do sharp time intervals arise in a mesoscopic/macroscopic system?
Feb
9
reviewed Leave Open What “is” energy in sub-atomic particles?
Feb
8
comment In what sense are photons emergent?
It seems obvious from the context that Wilczek means gauge bosons not mesons.
Feb
8
revised In what sense are photons emergent?
Add link
Feb
8
comment What is static mass increase effect predicted by General relativity?
I wonder if this is just the GR version of the (rightly) reviled concept of relativistic mass i.e. gravitational time dilation means the momentum measured by a Schwarzschild observer will deviate from $mv$. The static mass increase would ascribe this to a change in $m$.
Feb
8
comment In what sense are photons emergent?
See the Wikipedia article on EW symmetry breaking. Above the EW transition neither the photon nor the Z exist. They appear at low energies due to mixing of two of bosons that exist before the EW symmetry is broken. I guess Wilczek's point is that the higher symmetry before the EW transition makes the physics simpler.
Feb
8
reviewed Leave Closed Checking that the propagator for Harmonic Oscillator satisfies Schroedinger Equation
Feb
8
reviewed Leave Open How do I calculate a Feynman diagram with one loop?
Feb
8
reviewed Close Position and momentum expectation values for the stationary states of the infinite square well