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seen May 26 at 14:22

May
22
answered Why do like charges repel and opposite charges attract?
May
13
comment Help with finding an equation to work out the length of cable required to produce loss of colour on an analogue video signal
Do you mean $v=f \lambda$? with velocity $v$, wavelength $\lambda$ and frequency $f$?
May
13
answered What is the intuitive meaning behind Coulomb's constant $k_e$?
May
13
comment 4 dimensional interpretation
What do you mean the combined speed of $c$?
May
13
answered Time dilation. Why?
May
13
answered Why water expands when freezes?
May
12
revised Why do the storms of Jupiter have long life unlike that of Earth?
Removed a section that one user was quibbling about.
May
12
comment Why do the storms of Jupiter have long life unlike that of Earth?
@IncnisMrsi No it wasn't. But thanks.
May
8
awarded  Yearling
May
8
comment Not direct/inverse proportion implies systematic error
And I am talking about the relation $xy=k_{2}$ for some constant $k_{2}$.
May
8
comment Not direct/inverse proportion implies systematic error
So if two quantites are in inverse proportion then their product must equal a constant (the same constant!) $\forall$ values of $x,y$. If this is not true (incorporating rounding errors), then there is a systematic error.
May
8
answered Not direct/inverse proportion implies systematic error
May
8
revised What areas of research question the existence of the Planck length?
deleted 5 characters in body
May
8
answered What areas of research question the existence of the Planck length?
May
8
revised Deriving pressure from a given partition function
tidied up some mathjax and a little grammar.
May
8
comment How warped spacetime bends trajectories of light and moving objects?
@JohnRennie I wonder if it has something not to do with the content, but more the appearance of the question with regards to the inclusion of jpegs rather than fully formatted Mathjax.
May
8
suggested approved edit on Deriving pressure from a given partition function
May
8
comment Real World application of Topological Quantum Field Theory
The physical system is spacetime since TQFT is a QFT that computes topological invariants; in this instance if you like; one can consider the topological invariants of smooth four-manifolds.
May
8
comment Real World application of Topological Quantum Field Theory
Seek out Floer Homology and Sir Michael Atiyah's seminal paper on New invariants for manifolds of dimensions 3 and 4.
May
8
revised Lax representation of the harmonic oscillator
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