It will take 42 lightyears !I wonder how long will it take for that signal to travel 42 lightyears?
Got it. I'm with you on the lightyear distance. But I don't believe sound 'waves' travel as fast as lightyears, since sounds is indeed in waves. But no matter, the 30 second commercial has yet to hit it's target. But would anything in-between would be able to hear the commercial while it is on the way, even in space?It will take 42 lightyears !
The light-year is a measure of distance, not time. It is the total distance that a beam of light, moving in a straight line, travels in one year. To obtain an idea of the size of a light-year, take the circumference of the earth (24,900 miles), lay it out in a straight line, multiply the length of the line by 7.5 (the corresponding distance is one light-second), then place 31.6 million similar lines end to end. The resulting distance is almost 6 trillion (6,000,000,000,000) miles!
... not sent in sound waves I imagine, but in radio waves ?Got it. I'm with you on the lightyear distance. But I don't believe sound 'waves' travel as fast as lightyears, since sounds is indeed in waves. But no matter, the 30 second commercial has yet to hit it's target. But would anything in-between would be able to hear the commercial while it is on the way, even in space?
edit to add:
from duck duck go search:
The speed of sound is approximately 340 meters per second, while the speed of light is about 300,000,000 meters per second. This significant difference means you see lightning before you hear thunder during a storm.
But ...radio waves are a type of sound wave.... not sent in sound waves I imagine, but in radio waves ?
(No sound in a vacuum, of course...)