alt Hacker NewsNow now... Let's be fair...
Radio broadcasts to everyone.
Light you can block off to a single direction.
Oh wait, directional radio antennas exist. Nevermind, yes. Exactly like radio waves.
Now now... Let's be fair...
Radio broadcasts to everyone.
Light you can block off to a single direction.
Oh wait, directional radio antennas exist. Nevermind, yes. Exactly like radio waves.
> Light you can block off in a single direction.
Sorta, kinda. You're really only just attenuating things a lot. It's tricky to actually block it off fully.
Same with radio waves, as light is literally the same phenomena as radio waves, it's just shaking faster.