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6h
comment Is a falling, perfect sheet of fluid possible to create?
Related physics.stackexchange.com/q/82009
21h
comment Gas pressure and centrifugal force
@Hausdorf I understand the confusion. I had this in mind: onlineconversion.com/images/object_surfacearea_torus.png
21h
comment Gas pressure and centrifugal force
@user46147 Which unit did do you think are incorrect? $\omega$ in $1/s$, $R$, $r$ in $m$, $g$ in $m/s^2$ and $p$ in $Pa$.
Jul
17
comment Mathematica package for supergravity and string theory
@Dilaton So, is this a physics-only software-question? I think it is very borderline in that case. Also don't worry to much about other people vote-closing habits. It needs 5 users to close a question, which is quite a consensus in the end.
Jul
17
comment Mathematica package for supergravity and string theory
@Dilaton I don't think there is a real consensus: meta.physics.stackexchange.com/q/2825
Jul
16
comment Doing numerics in physics
@Hagadol There is a subtle difference. Your question is "What should I use", the other is more general "Which tools ara available". (Although the other one might be closed for being a list-type question).
Jul
16
comment Doing numerics in physics
@Hagadol You might find a lot of very useful questions on SciComp.SE scicomp.stackexchange.com
Jul
16
comment Force to stop a moving rope vs. stagnation pressure of a fluid
I don't see why the mass of your rope changes?
Jul
15
comment Antipodes are mostly ocean - so what happens after digging that hole through earth?
How did you end up at $7,200K$?
Jul
14
comment The measurement of electricity
@ticster I actually also thought it was much more common. But, I would also write it as $5 \textrm{V}$ rather than 5 volts. Also, it is not really an edit, as it came up in the review queue.
Jul
14
comment The measurement of electricity
@NickStauner My preference. I also normally say 5 meter, 5 liter or 5 kilogram, rather than the plural, which is not commonly used.
Jul
13
comment How does gravity affect bullets?
fps? Frame per second? I would highly recommend to use SI-unit (meter/second), or maybe derived km/hour.
Jul
11
comment Time inversion for Euler equation
Gut feeling tells me that such a transformation does not exist. It would not describe the same physics anymore.
Jul
11
comment Why time is considered a dimension?
Suppose you meet some-one. You can be at the right location, but in the wrong time. Or, in the wrong location, but at the same time. In both occasions you do not meet your friend.
Jul
9
comment How can we describe the trajectory of an object projected into a viscous fluid?
Did you consider Newton's second law?
Jul
8
comment How is heat transferred to a thermometer?
I don't understand what you mean by "Somehow a thermometer acts as a speedometer right?"
Jul
2
comment Pressure vs Volume Calculation for air
@DaveCoffman That is exactly the same thing.
Jul
2
comment Will a drop of liquid flow from from the wide opening to the narrow opening of a thin funnel by the effect of air pressure?
@Joce As it is sketched and according to the Laplace-pressure, this is exactly right. Obviously, both $R$'s are positive, and nothing is wrong with this derivation. Maybe with different contact angle behavior this changes, but that really depends on the material of the funnel.
Jun
25
comment How much does the Earth's rotation affect a golf ball?
I modified your answer a bit: you can use latex for your equations.
Jun
25
comment Need help simulating a fan
@fantomx11 Any book on "Computational Fluid Dynamics" would do. I would also recommend to follow one or more courses on fluid dynamics and computational fluid dynamics. Then, there are plenty of tools (free or licensed), where everything you ultimately need is implemented. Follow a course on that specific tool too, and find a mentor to guide you through it when needed.