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Dec
30
revised Transport theorem derivation question
Put notes inside text
Dec
29
revised Potential function and angular momentum of a quantum particle
edited tags
Dec
27
comment Confocal Microscopy
Might be useful to add where your quote comes from. (Not my area of expertise, so it might be obvious)
Dec
27
comment Festive physics: gold flake vodka
Theory? Density can be quickly compared. Right?
Dec
25
reviewed Approve suggested edit on Is it possible to focus the sun in such way?
Dec
25
comment Why does centre of mass of ice-container system shift in absence of any net external force?
What about gravity?
Dec
25
comment Festive physics: gold flake vodka
Probably an first estimation based on a rigid sphere would give a good first idea, so $v=F/20\mu R$, which, when plugging in numbers would be around $1mm/s$. Probably plugged in some wrong numbers, because this seems a bit large (or Stokes drag is to rough of an estimate)
Dec
25
comment Festive physics: gold flake vodka
Could you estimate "long periods"? Is it hours, days, months?
Dec
21
comment Does pressure drop across pipe affect flow rate?
Of course, if the friction between the pipes is different. I assumed similar pipes of only different lengths.
Dec
20
comment Does pressure drop across pipe affect flow rate?
Yes, but that is due to it being longer, not due to the friction itself: the pressure drop scales the same way.
Dec
19
revised how to reduce pressure drop in a 5/16 ss tube
Fixed layout
Dec
19
comment Does pressure drop across pipe affect flow rate?
Friction: if both pipe are the same, then it doesn't matter. If the pressure at the outlets is not the same you have to be more specific, i.e. you have to add contributions from other components that influence the total pressure drop. (Consider it as a electrical circuit)
Dec
19
answered Does pressure drop across pipe affect flow rate?
Dec
18
comment Physical description of momentum flux tensor
The stress tensor is a bit more easy for incompressible flows.
Dec
18
revised Physical description of momentum flux tensor
Added name of $\mu$
Dec
18
revised Physical description of momentum flux tensor
edited title
Dec
17
revised An analogy for resonance?
deleted 2 characters in body
Dec
15
comment A revolving astronaut
How does mass come into the equations?
Dec
15
revised A revolving astronaut
no bold
Dec
9
reviewed Approve suggested edit on What is 2 $\theta$ in X-ray powder diffraction (XRD)?