Recent content by fascinated

Aint that the truth, brother. Thanks again, all.

Got it. Thanks... that's actually what I expected, but for some reason, it just doesn't sit right. Ahhh... spacetime.

Thanks, all of y'all! I see exactly what's happening... I think.?. What if, hypothetically, the stick is some 'perfect' material that does not give? Let's say that at the absolute smallest, subatomic parts of reality within this stick that it is so dense that it simply cannot compress. What...

Ok, so if I am the one on Earth and I push my end one foot towards the moon, the person on the moon would not know the stick has moved until the next day? This is what seems off to me. Is there shrinkage involved where the stick takes another form?

If two people are holding a stick going from the Earth to the moon and the one on Earth pulls the stick, would the person on the moon feel it immediately? This question was answered on Quora and the answer given involves the speed of sound and claims that the person on the moon would not feel...

It's impossible. We have to do it a different way. I think the supported, more visible line would work, if that is possible. I still don't see how we guarantee a horizontal line. Thanks again, folks.

Thanks again for all the replies. Yep, got that. This! It was brought up before as I couldn't see how this gets done. With the spectra braid line, we have the sag down to 2.5 feet. This would allow us to hang the first line at 12.5 feet and have a perfect line at 10 feet. My question again...

I actually came across that same calculator, but didn't understand how to enter the right numbers. And you are saying that line I found above would sag 2.5 feet or that the laser will curve that much?

LOL, at flat. There must be some reasonable explanation. I am more curious about using a laser with the beam being visible as suggested. Catenary handled.

Timestamped at the description: Yes, if my math is correct.

10 feet would be perfect. And this might get close. Spectra braid line rated for 78 pounds with specific gravity of .98. And 2000 meters weighs about .37 lbs.

You guys are great. I have been googling away, learning about lasers a bit, and don't understand how the beam would be visible over that distance? Wouldn't it just project a dot on the other side, wherever it hits? And a video of this guy shooting a laser over a lake popped up. He claims the...

I assumed this is where you were going and if I understood your previous points, this would mean that the support line would have to be somewhere above 150 feet in the air? Any idea for how much sag with piano wire and if these lengths are accessible? Lol, can you do that? Ideally, yes. It...

Yes, practical, sorry and the idea was to hang light, but visible ribbons, but based on your edit, that might not matter. Yes! Can you elaborate here? How can a highly visible cord could be supported in a quite flat configuration and how close to horizontal would the end result be? Any idea if...

It is needed for part of a massive, outdoor art installation. And the engineering challenge would be to get as close to a horizontal line as possible.