Queries On Universal Nature, Or Nature of the Universe :smile: Options

[visuja]

This is in response to a post at the Shlokas thread -- Gayatri Mantra

Can sound (as we know it) be generated in space ?? Theres no (known) medium between the fast moving bodies for sound travel. Else we'd all have evolved as deaf creatures, or probably developed an alternate way to understand sound amidst all the terrible (and terrific) background noise.

Is energy created in the universe (apart from E=mc^2) ? The kinetic energy of galaxies is simply the energy they possess due to their motion. If they stopped moving, all the KE would be transformed into some form of potential energy, I believe. (Although that might lead the collpase of galaxies due to intense gravitational fields). And where is the sink (if any) where energy is consumed ??

This post has been edited by visuja: Aug 31 2005, 08:42 AM

[visuja]

Thanks for the link Mandrake. Didnt quite realise that there would be sound in the more dense regions of the universe ! Fascinating to learn of the black hole that emits a note thats 57 octaves lower than our standard 'middle' octave !! WOW !

The problem I have with sound is visualising the difference between the energy associated with its frequency and the energy associated with its amplitude. Could someone give me an example of a loud low pitch sound and a soft high pitch sound ?

[bibhas]

Could someone give me an example of a loud low pitch sound and a soft high pitch sound ?

Vivek,
I hope I am reading your question right. Pick up any classical flute recital by Pt. Hariprasad Chaurasia and listen to it carefully. He uses soft notes in the higher octaves and loud notes in the lower octave to create quite an effect ! I'll try to find a specific example meanwhile for you to listen.
Bibhas