GLASTcast 1 & 2

[szGabor93]

I can't understand those peoples who hates these researches. It's true we don't know too much about black holes, almost all of our knowledges about cosmic things are only theories, but making theories makes people not to be bored, and gives them almost a full view about our universe about our existance. If you hate it then you must be not so informed about your own being

[ZZ009966]

Gay Licking Ass Shit Telescope...

[jackoalltheway]

what if we look at the universe when we have had shrooms,what would we see then????

[Wcoltd]

I have a question that has been bugging me.

What is the highest relative energetic value for a light particle? Is it infinity? or does there exist an energetic value at which light ceases to be light?

[stevebd1]

For light entering a black hole, the event horizon is described as the surface of infinite blueshift where light falling in has a frequency approaching infinite, induced by the gravity. If you did decide to approach a black hole, not only would you have the massive tidal forces to contend with (depending on the size of the black hole) but also massive amounts of radiation such as gamma rays, x-rays and possibly something exotic at the event horizon.

[darklaguna]

Exciting. Old days of InfraRed-Telescopy were just coupla years ago. Next thing you know. They're making a Cosmic Ray-Imaging :-D

[Wcoltd]

Yes, while the event horizon would be defined by a surface of infinite blue-shift, the event horizon may only exist theoretically, we know that the closer you get to the event horizon the closer light approaches infinite frequency, but is there such a thing as infinite frequency?

My question is exactly that, is there a maximum frequency for light, and if there is, then what is it?

(I read physics forums on the subject)

[stevebd1]

From wiki- 'It's thought that the short wavelength limit is the vicinity of the Planck length, and the long wavelength limit is the size of the universe itself, although in principle the spectrum is infinite and continuous.'

[Wcoltd]

I came across that explanation in the forums, I took that to mean that as relative kinetic energy increases towards and oncoming ray of light, that light approaches a frequency where the peak to peak distance is the Planck length.

It would seem, though, that this would imply one of two possibilities. Either there exists some maximum relative kinetic energy value, or that in the domain beyond a certain relative kinetic energy value, the laws of conservation would no longer apply.

[stevebd1]

In respect of the laws of conservation, a shorter wavelength does imply more energy so where does the extra energy come from? In regards of the blueshift around a black hole, the event horizon can also be referred to as the surface of infinite redshift for light trying to escape the black hole..

[Wcoltd]

Take the case of a spaceship moving towards a light ray with frequency where the trough-to-trough length is equal to that of the Planck length, if that ship were to accelerate towards this light, what would happen to that light? According to Planck length the frequency would not change, and according to the special theory of relativity neither would the speed, so if neither speed nor frequency changes, it would mean (absent an increase in some other form of energy)conservation would be broken.

[pacman2k1]

i believe that this technique and others like infrared will bring the evidence that aliens exist. the spectrum we see with our eyes is so small... maybe we'll see the "footprints" of their ships using glast. go on stevebd!

[wildchildplasma]

We could see more at the edge of the cosmos which would be cool to see.

[rochet75]

amazing