...wont have reached the outside of our galaxy yet.....Is that true?
2006-09-22 21:50:33 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
She dont do telescopes..shes an astrologer!
2006-09-22 22:01:13 · update #1
Astrologer? Sound-waves?
the 'sound-waves' probably didn't even reach the earths upper atmosphere. And since sound waves don't travel in a vaccum, and given that space is pretty close to a vaccum (in the empty bits anyway) then the answer is ... your astrologer is right.
When the millenium falcon next comes to visit I'll go back in time with Han and capture some of them sound waves in a jam jar and jump to lightspeed then dump em in the next galaxy 500 years before they actually happened. Then you can tell your astrologer that "actually they already did 500 year before...nyerr"
Hilarious question. Got any more?
2006-09-22 22:17:02 · answer #1 · answered by gbiaki 2 · 3⤊ 0⤋
Yes, the radio signals will be travelling at the speed of light. The first TV broadcast was in the 1930's, so they'll only have travelled about 70 light years. Given that it's around 300,000 light years to the centre of the galaxy, they're barely out of the suburbs yet. Oh, and I'm an astronomer not an astrologer. And yes, check out the film Contact, or better still, read the book, written by Carl Sagan.
2006-09-23 05:36:07 · answer #2 · answered by Wolfman 1 · 1⤊ 0⤋
Considering the milky way is about 100,000 light years across, and the first TV broadcast was back in the 1930's, I think we have a few years to go. :-)
On that general note, check out the movie "Contact". The first TV broadcast has a small but rather important role there. It's a great movie, too.
2006-09-23 05:08:20 · answer #3 · answered by Bramblyspam 7 · 1⤊ 0⤋
Yes and no. First, its not about the sound waves, its about EMR, radio waves I assume. It travels at the speed of light, lets just say 100 years ago for the first TV broadcast = 100 lightyears is how far it has traveled. The Milky way is about 300,000 light years across. But, on the other hand, we are at the edge of the galaxy. We sit about 2/3 of the way out fromt he center (150,000 ly diameter) which means we are about 50,000 ly from the edge. That means it has only traveled about .2 % of its way out of the galaxy, assuming it was 100 years ago.
2006-09-23 05:03:18 · answer #4 · answered by gismo_28 2 · 2⤊ 0⤋
Hey, we all know how clued up Astrologers are! TV broadcast by sound - that makes sense!
But yeah, more or less true, first TV broadcast in the 1930's, so it can only have got 80 light years or so, hardly on it's way.
Space, as the guide says, is big!
2006-09-23 04:55:03 · answer #5 · answered by Avondrow 7 · 2⤊ 0⤋
Yes, I believe that is probably true. The galaxy is immense in size. But someday they will. But they will be very weak, if they exist at all. You see, they can lose their energy by bumping into stray Hydrogen atoms, or be deflected by gravitational fields, etc. And they are very weak to begin with.
Analogy: that's why we can't see the light from distant stars. The energy dissipates (goes away) after going such a long distance, because it gets absorbed by one thing or another. Tell him that! Better yet, ask him that.
2006-09-23 04:57:27 · answer #6 · answered by MrZ 6 · 0⤊ 0⤋
Yes. btw/ You mean astronomer
2006-09-23 04:58:30 · answer #7 · answered by S.A.M. Gunner 7212 6 · 0⤊ 1⤋
Yeah its true.Nothing more to say abou it .
2006-09-23 04:57:51 · answer #8 · answered by dm_overton 3 · 0⤊ 0⤋
that seems right
2006-09-23 05:08:38 · answer #9 · answered by ~❤~ 6 · 0⤊ 0⤋
...you mean the astronomer friend ......he is right...........
2006-09-23 04:55:17 · answer #10 · answered by spaceman 5 · 1⤊ 1⤋