What...IS...'Music' in the universe? | |
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Anonymous Coward (OP) User ID: 11581969 Canada 09/14/2012 10:29 PM Report Abusive Post Report Copyright Violation | The very first radio signals were sent out in 1886, over 124 years ago. In about 12 years, there were occasional broadcasts. By 1920, there was at least one radio station with over 1000 watts of broadcast power. So the signals have traveled about 124 light-years. But they would be too weak to detect, because of the background static. === 50 years? That was 1961, there were many many radio and TV stations by then. Source(s): [link to en.wikipedia.org] [link to answers.yahoo.com] |
Anonymous Coward (OP) User ID: 11581969 Canada 09/14/2012 10:32 PM Report Abusive Post Report Copyright Violation | Now you might as ask how far is 111 light years. On an astronomical scale, not very far. The Milky Way galaxy is about 80,000 to 100,000 light years in diameter. So our first radio waves have traveled only 0.0014 % of the distance from one end of the galaxy to the other. The Sun is about 26,000 light years from the center of the galaxy so the first radio waves have traveled only 0.0043% of the way to the center. The nearest star to the sun is 4.4 light years away. The 50 closest stars are within 15 light years. The 100 nearest are within 30 light years. So it is likely that the first radio waves have reached about 400 to 500 stars in the galaxy by now. Let's put that into some perspective. The galaxy is estimated to contain 200 to 400 billion stars. The next nearest large galaxy is Andromeda galaxy. It is 2.5 million light years away. It is quite probable that by the time the first human radio waves reach Andromeda, humans may no longer inhabit the universe. [link to answers.yahoo.com] |
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MONSTER User ID: 2122560 United States 09/15/2012 01:04 AM Report Abusive Post Report Copyright Violation | Each planet has its own sound or song all different, even the Sun has his song. KINGDOMS, NATIONS AND KINGS HAVE BEEN BROUGHT DOWN TO THEIR KNEES WITH ONE GLANCE FROM A WOMAN. I WEAR MY SKIN OF ARMOR SO NO ONE CAN GET IN AND NO ONE CAN GET OUT. HOW CAN I MOURN YOU, WHEN I HAVE NEVER LET YOU GO, monster 1991-2008 RIP |
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