Tagged Questions
0
votes
1answer
46 views
Composition of solar spectrum
I read some where that there are three types of UV and infrared rays namely UV-A, UV-B, UV-C and near infrared, mid infrared and far infrared. Which is the most abundant among the the three in ...
9
votes
3answers
226 views
Explosion in space
I'm curious about what happens if an explosive substance detonates in space. On Earth, I guess a good chunk of the energy released is carried away by shock waves in the atmosphere. But in space, the ...
3
votes
1answer
131 views
Hamiltonians and Lagrangians, Euclidean and Hyperbolic: Are they related?
The Lagrangian of a system is the difference between its kinetic energy $T$ and potential energy $V$, and is relativistically invariant:
$L = T - V$
The Hamiltonian of the same system is the sum ...
0
votes
1answer
84 views
spacetime or only space? [closed]
I was thinking one day, if time doesn't exist and there is only space. I was trying to think about what other measurementunit could be instead of speed(m/s) and acceleration(m/s2) and I came to ...
2
votes
2answers
746 views
In summer are the upper storey flats more hot or the lower storey flats?
I have often heard neighbours talking things like in a multi storied apartment, the upper flats are more hot in summer then lower flats (or vice versa?) and similarly for some comparison in winter? ...
3
votes
2answers
446 views
What is an “Idea” in terms of time space and matter? [closed]
If the physical world we know is made of matter stretched in time and space and some forces affecting it, what would be an Idea, pure Information or something similar.
Does those things don't exist ...
