Questions tagged [experimental-physics]
For questions about design, process, data, or analysis of experiments and observations.
3,952 questions
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How can one practically measure electrostatic potential differences in a circuit when there's a varying magnetic flux?
Suppose we have an electrical circuit in the presence of a varying magnetic field. As in https://physics.stackexchange.com/a/847326/404476, we define the electrostatic potential at a point $\mathbf{x}$...
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Experiments on double pendulums: Does it take the same time to stop each time I dropped them from the extended horizontal position? Why?
Experiments on double pendulums: Does it take the same time to stop each time I dropped them from the extended horizontal position? Why? Consider you dropped a double pendulum extended from the ...
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A brick sliding in an horizontal plane after an initial push (under Coulomb's dry friction and Stokes' drag) - part 3
A brick sliding in an horizontal plane after an initial push (under Coulomb's dry friction and Stokes' drag) - part 3 Intro This is a follow up of this question. After finding counter-intuitive the ...
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A brick sliding in an horizontal plane after an initial push (under Coulomb's dry friction) - part 2
A brick sliding in an horizontal plane after an initial push (under Coulomb's dry friction) - part 2 Intro This is a follow up of a previous question. Main Body From these Wikipedia sites: Contact ...
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How to get the table of the sensitivity curves of DECIGO experiment
Any help how to find the text file of the table of graph Fig: 3 In paper for the blue curves? which are the Sensitivity Curves of The Japanese space gravitational wave antenna: DECIGO Or if there any ...
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Why is the excess at the $t\bar t $-threshold, seen by CMS, a surprise?
Recently the CMS Collaboration reported on an $\approx 5\sigma$ excess in the $t\bar t$-threshold [1]. There are two papers published, one is a BSM search that fits a heavy $\mathcal{CP}$-odd Higgs ...
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Which of these equations is more accurate to use when calculating spring constant using the dynamic method: $T^2 = (4π^2/k)m$ or $1/T^2 = (1/4π^2m)k$?
I am working on a physics practical involving coupled pendulums wherein I need to experimentally calculate the spring constant of a spring using the dynamic method. The dynamic method involves using ...
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At what point would the strongest material break under its own weight?
Is there a chart or a way to calculate the breaking point of a material such as spider wire made from Aerographene, 3D-Structured Graphene, or Metallic Microlattices under its own weight?
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In JJ Thomson's 1897 paper, why does the conductivity of the gas affect the quadrant electrometer in the way that it does?
The bottom line is that I am trying to understand this paragraph (see Image 1) in Thomson's 1897 cathode ray paper, particularly the sentences that I highlighted in yellow. I do not understand why ...
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Is there any other method to directly observe gap-states in a semiconductor?
I want to directly observe gap states in a semiconductor sample, like the picture below: (from: https://doi.org/10.1021/nl501659n) What I found is that scanning tunneling spectroscopy can measure gap ...
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General Relativity Experiment Query
Could we more accurately test General Relativity's time dilation predictions by comparing an atomic clock on a geostationary satellite with a corresponding clock on Earth's surface? Given that both ...
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Comparing field lines from floating bug on water and magnetic field lines
The other day I was testing the pH of a water sample in an Erlenmeyer flask and a beautiful harmonia axyridis plopped down on the top of it. And the 'ripples' it formed reminded me of those photos of ...
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Fizeau Experiment Graphical Question
In Fizeau's experiment for the speed of light we find that $f_0$ is the lowest frequency for which all the light is blocked by the adjacent tooth. If we double the frequency we get the maximum amount ...
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Confirming the calculation of the speed of light [duplicate]
In a YouTube video, popphysicist "Veritasium" points out that the speed of light has never directly been measured, that is that it is experimentally impossible for two viewers at different ...
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Why don't we use gamma rays to probe proton structures?
Why don't we use gamma rays to probe proton structures just like a super optical microscope? Is it because real photons are on shell and can't receive enough transverse momentum transfer?
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