My astrologer friend says that the sound-waves from the first ever television broadcast?
.wont have reached the outside of our galaxy yet...Is that true?
Answers:
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?
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!
.you mean the astronomer friend ..he is right.....
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.
Yeah its true.Nothing more to say abou it .
Yes. btw/ You mean astronomer
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.
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.
that seems right
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.
What IF it is a big one?
What pollution effects the atmoshere?
Lightning Protection Systems?
What are the values of sin, cos and tan?
If far off gallaxies are receding at close to light speed but as it will be impossible?
Simultanious Questions?
is there an edge to space/the universe or is it infinite?
explain structural influence on water retained by clay?
Answers:
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?
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!
.you mean the astronomer friend ..he is right.....
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.
Yeah its true.Nothing more to say abou it .
Yes. btw/ You mean astronomer
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.
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.
that seems right
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.
The answers post by the user, for information only, UKQnA.com does not guarantee the right.