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

[kallubhai4u]

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 ??

thanks vivek, this question is a real good one. u have come to face a very sensuos problem of medern sciences & technology. every such effort of yours will lead to a better understanding of these myterious phenomenon.

well to say, sound being a wave( a matter wave) needs medium 4 its propagation & origin coz itz not a EM wave. let me tell u that sound waves r created by some pulsars & such dying stars. few days back while reading an article, i found that some other celestial bodies also produce sounds.

as far as energy is concerned, every universal body is atleast spinning on its axis and that puts up a lot of angular momentum, which is just proportional to the moment of inertia of that body. this moment of inertia is nothing but the "mass" that we speak in general terms. this spinning gives of quite a large amount of energy. thats how pulsars & quasars give off high energy radiations.

i hope that would satisfy ur hunger.
kalyan