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[-] Ulvain@sh.itjust.works 32 points 4 days ago

I'm not a scientist by a long shot, but my understanding is that sound if indeed a wave, carried by a medium (air, water, etc). Upon hitting your eardrum, this wave is converted by your eardrum and your auditory nerve into signals your brain decodes. The remainder of the wave continues though, until it runs out of medium, hits an obstacle (basically another medium) or dissipates. Again, just my layman's understanding!

[-] Nougat@fedia.io 21 points 4 days ago

Don’t forget the inverse square law. Even without a change in medium or any obstacles, the strength of the signal decrease over distance until it is undetectable.

This is also why there are no extraterrestrial civilizations hearing any radio broadcasts from Earth. Our transmitters are so weak that any signals we send out fade into the CMB before they get any real distance.

[-] spankmonkey@lemmy.world 12 points 4 days ago* (last edited 4 days ago)

So Lrrr and Ndnd warching Single Female Lawyer 1000 years in the future is a lie?

[-] Nougat@fedia.io 5 points 4 days ago

They would not have been able to watch it from an original OTA broadcast, no.

[-] nieceandtows@lemmy.world 3 points 4 days ago

Unless they have an extensive network of wormhole repeateds

[-] xthexder@l.sw0.com 2 points 3 days ago

They've probably just got a spy satellite around earth that transmits back. Or maybe an extremely directional antenna / receiver dish would work, since they're focused on Earth specifically.

[-] Clent@lemmy.world 9 points 4 days ago

You area conflating auditory waves with radio waves.

These are very much not the same thing. Sound waves require a medium while radio waves do not.

Radio waves travel vast distances through space while sound doesn't travel at all.

[-] Rhaedas@fedia.io 6 points 4 days ago

If they didn't fade with distance, this is as far as they have gotten. So for now we are still quiet in the dark forest.

[-] Semi_Hemi_Demigod@lemmy.world 4 points 4 days ago

If we had FTL I'd be a radio archaeologist, flying out to various distances to attempt to capture lost episodes of old TV shows like Doctor Who

[-] NocturnalMorning@lemmy.world 4 points 4 days ago

False, it gets stuck in my head, to be played over and over until the next song gets stuck in my head.

[-] spankmonkey@lemmy.world 4 points 4 days ago

A little bit reflexts off your eardrumm too!

this post was submitted on 12 Oct 2024
1172 points (98.8% liked)

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