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HNQ
6:33 AM
2
Q: Does a body released from the end of a rotating tether still rotate?

David COK, thinly disguised but simplified Spinlaunch physics question- Assume all in vacuum, no gravity to speak of, classic 'assume the cow is frictionless' conditions. Ball at end of tether, tether attached to an axle at other end, axle is spinning, ball is describing a circle, tether releases, ball ...

 
 
7 hours later…
HNQ
1:31 PM
2
Q: If we have a cosmic microwave background should't we also have a cosmic radio wave background?

Werex ZenokI'm a layman in physics, but here is what I understand: What we see in the sky with naked eyes is a map of electromagnetic waves in the frequency visible to the human vision. But that kind of observation is too limited because as the universe expands, the light coming to us redshift to the invis...

 
 
6 hours later…
HNQ
7:41 PM
3
Q: Can Coulomb be derived directly from Gauss?

Andrew SteaneThis relates closely to questions such as Deriving Coulomb's Law from Gauss's Law and Does the Coulomb's law include more information than the Gauss's Law in electrostatics? My question concerns the nature of isotropy in field theory generally, and how determinism impacts on this. Here is the bac...

 

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