Drone Footage of Arecibo Observatory Collapse • Hacker News Board

Re: Drone Footage of Arecibo Observatory Collapse

#121

Post by LeifCarrotson » Thu, Dec 03, 2020, 9:07 PM UTC

IfOnlyYouKnew wrote: post #49

dylan604 wrote: post #41

So now, humans are going to be the intergalactic assholes of the universe who go and change their phone number without leaving a forwarding number. When our message sent from Arecibo is finally received, their response will go to a disconnected number. https://www.youtube.com/watch?v=2BVbyCZXc5s

"now" is doing a lot of work here... If I'm not mistaken, we have about a millennium or a hundred make arrangements.

The Arecibo message was sent out 46 years ago, in 1974 [1]. We'd only miss responses from potential respondents who are between 23 and (23 + (time to build replacement / 2)) light-years away.

Fortunately, the message was sent to globular cluster M13, which is 22,000 light years away. As long as we get it done by the 47th millenium AD we should be fine.

Unfortunately, applying Parkinson's law to that task means we've got a lot of work to do!

[1] Side note: It somehow never ceases to amaze me how very year, my mental shortcut for approximating the number of years since a given date by subtracting it from 2000 gets less and less accurate.

Re: Drone Footage of Arecibo Observatory Collapse

#122

Post by faeyanpiraat » Thu, Dec 03, 2020, 9:15 PM UTC

Jaruzel wrote: post #84

llacb47 wrote: post #46

Earlier quoted context omitted.

It's your copy of the video

It is, but I don't get anything from hosting it, It's not monetised. I kept getting timeouts on the actual site, and the sharing URL was nasty long (I wanted to share it to friends). I did credit them in the video description. I was only trying to help.

Nothing wrong with increasing availability of worthwile materials, thanks for putting in the work!

Re: Drone Footage of Arecibo Observatory Collapse

#123

Post by xster » Thu, Dec 03, 2020, 9:19 PM UTC

modeless wrote: post #118

neom wrote: post #89

Scott Manley synced up the footage: https://www.youtube.com/watch?v=LSSrEowtIOo

A very similar event was depicted in Battlefield 4, surprisingly accurately as it turns out: https://youtu.be/KiOQdVvGdQE?t=38

That's how how 006 died too

https://youtu.be/wGmDAjRRNXs?t=160

Surprisingly inaccurate and led me to think up until today that the reflector dish was a concrete bowl rather than a metal mesh.

Re: Drone Footage of Arecibo Observatory Collapse

#124

Post by siliconmountain » Thu, Dec 03, 2020, 9:20 PM UTC

neom wrote: post #89

Scott Manley synced up the footage: https://www.youtube.com/watch?v=LSSrEowtIOo

I'm amazed they had a drone up there to catch that. Were they flying drones multiple times a day just to catch this footage?

Re: Drone Footage of Arecibo Observatory Collapse

#125

Post by dylan604 » Thu, Dec 03, 2020, 9:20 PM UTC

LeifCarrotson wrote: post #121

IfOnlyYouKnew wrote: post #49

Earlier quoted context omitted.

"now" is doing a lot of work here... If I'm not mistaken, we have about a millennium or a hundred make arrangements.

The Arecibo message was sent out 46 years ago, in 1974 [1]. We'd only miss responses from potential respondents who are between 23 and (23 + (time to build replacement / 2)) light-years away. Fortunately, the message was sent to globular cluster M13, which is 22,000 light years away. As long as we get it done by the 47th millenium AD we should be fine. Unfortunately, applying Parkinson's law to that task means we've…

>[1] Side note: It somehow never ceases to amaze me how very year, my mental shortcut for approximating the number of years since a given date by subtracting it from 2000 gets less and less accurate.

Remember when partying like it was 1999 was something to achieve? The one that gets me every year is my graduation date from high school gets further away. It is now more easily measured in decades.

Re: Drone Footage of Arecibo Observatory Collapse

#126

Post by areoform » Thu, Dec 03, 2020, 9:22 PM UTC

It feels like the death of American ingenuity.

We've fallen from the era where we sent echoes to our neighbours and the stars. When we found clearings in jungles and turned them into monuments to humanity. The time when we put our best foot forward and reached ahead, into the future, racing towards a brighter tomorrow for humanity.

I mourn for what has been lost.

The American century wasn't punctuated by a war, but by callous neo-mercantilism and disregard. The fall of America's aspirations from the heavens to the bottom of a sinkhole.

Re: Drone Footage of Arecibo Observatory Collapse

#127

Post by dylan604 » Thu, Dec 03, 2020, 9:25 PM UTC

ars wrote: post #98

dylan604 wrote: post #41

So now, humans are going to be the intergalactic assholes of the universe who go and change their phone number without leaving a forwarding number. When our message sent from Arecibo is finally received, their response will go to a disconnected number. https://www.youtube.com/watch?v=2BVbyCZXc5s

That's an evocative way of writing, but I'm sure you know that Arecibo doesn't usually spend much time pointed in that direction, so there's no actual practical difference.

I may have read too much Douglas Adams. Also, Arecibo doesn't spend anytime looking anywhere now.

Re: Drone Footage of Arecibo Observatory Collapse

#128

Post by jessriedel » Thu, Dec 03, 2020, 9:29 PM UTC

modeless wrote: post #118

neom wrote: post #89

Scott Manley synced up the footage: https://www.youtube.com/watch?v=LSSrEowtIOo

A very similar event was depicted in Battlefield 4, surprisingly accurately as it turns out: https://youtu.be/KiOQdVvGdQE?t=38

Can anyone please characterize that accent/cadence to me?!? It reminds me very strongly of an accent I've been hearing on tech support telephone call frequently in the past 5 years but never recalled hearing before that. I have a pet theory that it's actually from a new technique for more rapidly teaching intelligible English pronunciation to folks learning it as a second language. But maybe it's just an accent from a region that only recently started hosting lots of tech support calls?

Re: Drone Footage of Arecibo Observatory Collapse

#129

Post by Gibbon1 » Thu, Dec 03, 2020, 9:30 PM UTC

mcguire wrote: post #107

Gibbon1 wrote: post #97

Earlier quoted context omitted.

The two people I'm friends with that are in the field made sucks but good riddance noises about the collapse.

Any urge to point out that, sometime in the future, someone will make the same noises about their work? :-)

The thing with Arecibo it's not the design you want in in a microwave observatory at all.

Same as the Space Shuttle which spent decades siphoning off a good chunk of of the budget for space stuff.

It was white elephant.

Re: Drone Footage of Arecibo Observatory Collapse

#130

Post by zandor » Thu, Dec 03, 2020, 9:35 PM UTC

jessriedel wrote: post #128

modeless wrote: post #118

Earlier quoted context omitted.

A very similar event was depicted in Battlefield 4, surprisingly accurately as it turns out: https://youtu.be/KiOQdVvGdQE?t=38

Can anyone please characterize that accent/cadence to me?!? It reminds me very strongly of an accent I've been hearing on tech support telephone call frequently in the past 5 years but never recalled hearing before that. I have a pet theory that it's actually from a new technique for more rapidly teaching intelligible English pronunciation to folks learning it as a second language. But maybe it's just an accent from…

Dutch.