The Legendary Arecibo Radiotelescope
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- Опубликовано: 1 ноя 2021
- All telescopes work by gathering light from the stars, but one held the crown for square footage for collecting that light for 53 years. The amazing Arecibo.
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[Sources]
www.astro.wisc.edu/~sstanimi/S...
www.naic.edu/ao/telescope-des...
www.science.org/news/2021/01/...
ui.adsabs.harvard.edu/abs/199...
www.darpa.mil/about-us/timeli...
www.naic.edu/ao/ngat
www.newyorker.com/magazine/20...
www.naic.edu/~pradar/radarpag...
www.nsf.gov/news/special_repo...
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www.istockphoto.com/photo/loo...
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• [COLLAPSE] Arecibo Obs...
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That last insult 2020 had to offer.
Arecibo collapsing in on itself.
Sort of like Brandon ;)
Being a Puerto Rico native Arecibo observatory was very dear to my heart, my dad took me several times to visit when I was a kid and it was always impressive to see in person.
Wepa. Aquí contigo. Yo tuve la oportunidad de ir en el catwalk cuando era chiquito
Yo tambien wepa
Damn they must be hardcore battlefield 4 fans
3:37 'By looking very carefully at the moon, Aricebo also found secret Soviet radar stations." The Soviets had secret radar stations on the *Moon* ?!
"Aricebo essentially used the Moon as a mirror..." OK, that makes more sense.
Yeah, I followed that same thought process. They could have worded that more clearly.
@@JosephDavies The wording was probably deliberate to see who was paying attention.
Of course they never had a secret radar station on the moon. The cheese could never support such a thing. Duh.
I actually backed up to listen again because my brain was doing the “wait, what?” reaction. lol
Got damn
I’m Puerto Rican and grew up around an hour or so away from it in San Juan. I visited the dish so many times growing up and had the rare opportunity to go halfway through the catwalk. As a lover of science I had been following the status of the radio telescope months prior to its collapse and saw the videos of when it was reported on local television because they were on air as it happened. The weatherwoman had just been there the day before and she just cried on TV. I cried as well. It was a huge blow to our local scientific community
I remember the day it collapsed fully, my heart crumbled. This telescope has given us soo much knowledge over the decades and I couldn't be more grateful
The video is heart breaking,it was like losing a part of your soul
As a Puerto Rican and fan of astronomy, it broke my heart when it collapsed. I'm glad I was able to visit it before that.
If ever there was a pin that made me say "I have to have this"
It's this one
Arecibo was THE telescope that made me want to learn about astronomy. So what if part of the reason was because of its mention in the film Contact?
Contact is criminally underrated!!!
And the Golden eye scene…
I felt that especially since I’m Puerto Rican and i visited Arecibo numerous times growing up and even just a couple of years before its collapse
I had the liberty of seeing the Arecibo Radiotelescope when I was a wee lad and it was a really cool experience to see it up close. Shame we let it decay and eventually collapse like that, it was a cool thing to have in our little island.
Same. I grew up in Bayamon and about half of our class got to go. The scale was absolutely fantastical to me then and the advances and knowledge she revealed still stuns me to this day.
but they're are rebuilding it
@@cornbreadfedkirkpatrick9647 Sure, but it should've never really collapsed. It's not only a marvel of scientific engineering but also a landmark in Puerto Rico. It should've been maintained all this time.
@@UndyingZero True
I live in Puerto Rico and we would go there on trips. Also once we went there in a school trip.
The design of Arecibo directly influenced the design of the telescope where I work. The Hobby Eberly Telescope uses a similar principle for collecting light with a spherical mirror, and Arecibo is discussed in the original papers. HET does steer, but only in azimuth; its elevation is fixed. The collection equipment (the "tracker") at the top moves for precise pointing. In our case, the spherical mirror allowed a very large collecting surface to be constructed of identical hexagonal mirror segments, which would not be possible with a parabolic mirror. SALT in South Africa is based on the HET design, so two large optical telescopes carry on this aspect of the Arecibo radio telescope's legacy.
I'm glad I got to work there as a tour guide in it's last years
It has been my favorite job ever
The US Navy sent my dad down there in the mid 70s to work on Arecibo. He was a radar specialist and had work on almost everything they had at China Lake.
Makes me appreciate the people who climb up there to work on it and other high structures. It’s good that no one was up there working when it happened. I’m thankful for that while sad it was damaged so badly. I truly hope they do rebuild it better than ever.
📡✨ NASA will not be rebuilding Arecibo. It was announced that the site has been permanently deactivated. The structural damage was too great & too expensive to justify the work.
🌌🔭
@@scottmcintosh4397 Thanks for clarification on that. I wasn’t sure. I heard both versions. I was probably more hopeful.
As a boricua, the feels~
I feel like it would've been fun to note that the Gregorian dome was named after James Gregory who designed the first reflective telescope
Appreciate the Portal pfp
christ what a tragedy. I can't believe it's gone. The pessimist in me says it's a symptom of a decaying civilization, the optimist in me says it was just old hardware and new stuff is coming online all the time. Either way Arecibo deserved a more dignified ending than rotting anchors and some gopro footage.
$400 millions seems like nothing when we have so many billionaires. I hope the area is reused! Cheers from PR. 👋
This feels like an obituary
I'm still in a bit of shock at seeing the footage of it's collapse. I didn't cry... but It was iffy for a bit there.
My coworker is from Arecibo. She got to visit it on a school field trip as a kid. I was so jealous when she told me.
I had the good fortune to work as a guest at Arecibo in the early 1990's, before the Gregorian upgrade. The "images" in those days weren't "fuzzy"; the carefully-phased line feeds gave the telescope a single sharp focus at limited bandwidth.
Visiting this telescope is one of my most cherished memories. Thanks for the video.
Wasn't that also used to control "goldeneye"? :D
Yep, and when it fell it landed on Sean Bean.
The only difference, no Sean Bean.
🌌🔭
4:27 ive seen this a thousand times In battlefield 4
I remembered that one from Golden Eye.
You can see it too in Carl Sagan's 1980 Cosmo series when he visits the place.
We were fortunate enough to see it before it crumbled. My heart crumbled when it fell....
I won't forget the moment I read about it and saw one small image in a book for first time in 2007
First saw it in the movie Contact. As a kid, it was insane to me that such a gigantic "satellite dish" existed. I wish they rebuilt it though, bigger.
When I watched the movie, it was pretty sad watching it knowing what happen to it
I was fortunate enough to see this scientific marvel a few years ago, I am hoping they can repair it in the future.
When that telescope fell, I think it broke the heart of a lot of astronomers and amateurs
Glad to see it's still relevant. For some reason I thought they had put it out of order. Now let's hope the best for the Hubble telescope.
My eyes tear up when talking about this telescope.
Rouge Transmission!
Please don't diminish the failures that led to the collapse of the telescope. It wasn't age or diffuculty but anemic funding and lack of will.
Except... it wasn't. Hurricane Maria did substantial damage in 2017 and the NSF was going to decommission it. Then, a consortium led by the University of Central Florida took over operations, and were planning to expand the capabilities. Then, in 2019, Puerto Rico began suffering a series of earthquakes (which have continued through this year) that further damaged the structure. The cables supporting the observation platform began to fail in August of 2020. It was decided in November of 2020 that the telescope would be decommissioned, after having determined that there was no way to repair the structure without risking the lives of construction workers. Considering it collapsed a month later, they made the correct decision.
Practical Engineering has a good video on the lead-up to the collapse, as well as some theories as to why the cables may have snapped: ruclips.net/video/3oBCtTv6yOw/видео.html
Edit: Forgot Tropical Storm Isaias that hit shortly before the first cable broke. It may or may not have been the straw the broke the camel's back.
@@darthtace Interesting that you mention Practical Engineering's video, when in that video he also states the fact that funding was a factor, as it wasn't being used that much anymore the funding was low, and in order to make the telescope temporarily safe enough that people would feel safe working on proper, long-term fixes would require a lot of money.
@@DreadKyller He mentions, in passing, that the NSF had been diverting funding. However, he also says that the consortium led by UCF had taken over full funding, and a quick Google search will show they were planning new additions to the telescope, in addition to maintenance.
There was no amount of money that could have saved the telescope without risking lives after the second cable snapped in November, and PE's video states that, most likely, the culprits were a combination of improper installation of cable during the installation of the Gregorian dome (the first cable that snapped) and under-engineering in the original design (the second cable that snapped). The first cable was next-to-impossible to anticipate, given that those kinds of cables are next to impossible to inspect at the failure point, and the second cable should have been able to hold the weight after the first cable snapped, so they didn't expect that they were on a timer until it was too late. Assuming those were the causes, of course; the official investigation hasn't been concluded.
I live in pr and it was so sad when it fell apart
yes , but they are rebuilding it and much bigger and with new tech included
Hey, Ancient Sith, I hope your island becomes our 51st state. We need you, and as a state, your home would be eligible for much more national aid for infrastructure, as well as empowered to demand it. If you want sovereignty, I would understand, and respect that, though I would be saddened. I know the History. It sucks how PR was made a protectorate territory, as well as how shittily the people have been treated and regarded since then. I hope you are well, and enjoy ever improver circunstancias.
@@injunsun no no no no. Please stop assuming that statehood is the correct or best route for us as a people. There is a rising sentiment for us to become independent especially after Maria. The US has abused us for over a century and solidifying that relationship into statehood is to spit on those that fought for us as a people against those that extracted our wealth, and destroyed our culture and food. As for aid we’d have the entirety of the planet where we can get aid and resources. I don’t like how you made it about how YOU would be saddened. Guilt tripping us to stay in an abusive relationship that shows absolutely no promise to improve by becoming a state
I feel it fell apart for the same reason all major infrastructure falls apart, everyone wants to be part of the "Build it and Cut the ribbon" crew but not enough want to be part of the "Maintain and keep it going" crew.
literally cried when i saw the video of it collapsing when it did:(
"WHY ARENT WE FUNDING THIS?!?!"
Good to have you back.
I always dreamed of being able to go see Aricebo. It was on my bucket list. So much for that one.
The one thing I regret from when I was working in Puerto Rico is that I never took a day to drive up to the telescope.
The one regret I had was going to Puerto Rico
@@prospectorpete3738 it was very regretful we let you in at all
RIP Arecibo. You are missed.
Bro I had some serious kill streaks on this map using the attack jet, good times.
Arecibo will be missed!!! I hope they rebuild it better!!!
I remember this battlefield 4 map
Tell Jeff Bezos they’ll name it after him, and I’m sure he’d pay for it.
Tell him Elon might be thinking of it :P That'll Mr Bezos moving XD
Nah he'll get the feds to pay for it for him
God the last thing I want is to have a science icon in my home named after Bezos or Elon
Nah he'll just sue someone
@@Ozzymandius1 it’s a Taino name, but it has more to do that the US doesn’t care about science as much as it should
Looks like the satellite dish in the movie Goldeneye.
Yes, it was used in the film.
PIN ORDERED!!!! I love the Arecibo! :D
The reason for focusing in the dome was the cables holding up the reciver would stretch and contract and with a parobolic dish the receiver would move out of the fixed focus point.
My most favorite Battlefield4 map, RIP
Pretty sure Puerto Rico was already a stable country politically because it's been a US territory since 1898.
I loved this telescope and I'm so sad we lost it.
“Politically stable” because the US invaded and killed freedom fighters and made it illegal to express any pro-independence thought
I am sad about it's death. I hope they can rebuild.
0:40 correction, Arecibo does not have a rainforest
I didnt know what this was before watching this but I saw the picture and thought of Rouge transmission.
5:00
📡✨ Arecibo 2.0?
Viva El Radar! 🤣
I bet a lot of 💰 could be made if the scrap were cut up & sold to the public as souvenirs. A "Friends of Arecibo" foundation of some kind.
🌌🔭
I like the new intro 👍
while I live near ... I only went like 3 times to the place, now I wish I could have done so more times 😥
Rest in peace
Valerie Hotzfeld, NV9L, did a video on Arecibo in 2017. I highly recommend watching it.
4:27 From the cradle to the grave, huh.
Funny that I'm watching another video about this, Exurb1a just talked about the message that was sent.
When you said when it comes to telescope, size matters my wife said "That's what she said"
It was sooooo sad to watch those cables break... 😢
whole of 400 million WOW, if only there were lizards and egg men who could build these with their pocket money supporting these researches
If only the US could spend less than 1% of their military budget in one year for science.
Yes, to you both.
The dish was no where near half sphere.
Dome receiver was kinda additional thing (not made in first design, with it's mass contributing to collapse).
I think great addition to the video would be a little bit more about how and why it collapsed.
And to be fair the collapse of it was pretty sad.
So much discovered sense 1970s maybe the space noise back ground isn't so empty maybe theirs to much interference in deep space to send a radio signal
They used to take us there on school trips
"easy to access in a politically stable country" is a fun way of saying "by the water in the US"
They knew it wasn't being properly maintained, but let it go anyway because it would be cheaper, or that's my understanding of the documents I've read. Then they started illegally building on Mauna Kea. 👀
More like because they had problems with budget, maintaining it was expensive and repairs would probably be over their budget
Imagine making a crome crater on the dark side of the moon to see soooooo much
You might have to see about impacts from stuff that gets swept up by the moon. There's a lot of stuff that the Earth sweeps up but it burns up in the upper atmosphere. It might actually hit the surface on the other side of the moon. But imagine the size you could make a Lunar Arecibo! :)
Heres to the telescope Being repaired or upgraded
And here's to scientific advancement made for sciences sake instead of war
Can you do an episode on the possible Lunar crater radio telescope?
And don't forget immortalized in films such as "Contact". I mean where else would we hear the first message from space?
It fell down years ago when 006 went rouge and tried to hijack the Goldeneye
Been watching Foundation recently. It's such a vivid and unnerving sensations how i can draw parallel between the fall of the Galactic Empire and the waining power of America. The Starbridge was ruined and yet the Empire didn't fix it or deal with it in any way and left it in orbit for many years, same goes for 'the Scar' where the 'stalk' of the Starbridge fell. They didn't fix that either and leaving it as a visible scar across the planet. The parallel is too clear. NYC aging infrastructures never get fixed, neither are most old Metro across the US, their days are very numbered at this point and with the fall of Arecibo all of those aforementioned combined is such a clear sign of stagnation and decline.
Ah, but you're fighting for "freedom" by invading other countries and demonising other ones, as well as restricting some of the freedoms of your own people. That all takes money.
@@thhseeking not "you're". "Them" is the more appropriate term cause i'm not a Murican. Just sharing my observation.
"They chose Puerto Rico because it's a colony of the US, and since they don't vote in national elections, it's pretty stable. That is, the US can do whatever they want with it, and politicians don't have to worry about losing their jobs."
Not voting in federal elections doesn't mean it's stable. I'm firmly just talking about the not voting part as Puerto Rico is pretty stable as pretty much all parts of the U.S. are.
@@sion8 I know, it just rubbed me off the wrong way when he said “they chose it because it’s politically stable”. No, they chose it because it’s a colonial possession.
@@gab.lab.martins exactly. They chose it because they feel they can do whatever they want with us. Also let’s not forget that they started building it in the mid 50s when they were actively persecuting Puerto Rican nationalists
Also Sion8 here is pro-statehood for the island cause he clearly doesn’t care about the colonial effect on the island and thinks joining the oppressor fixes our problems
So sad they let it go away. More discoveries made by this machine than people even know
This gentleman could read the dictionary and keep my attention.
Isnt this where they had the final fight in goldeneye?
How do I donate?
RIP
I propose... The Musk Arecibo Telescope or MAT. Get on it Elon!
Oh god no we don’t need some asshole’s name pretending to be a good thing for science in Puerto Rico
So it seems like as far as the destruction of the arecibo site, James Bond is off the hook on this one LOL
0:37 a radio telescope doesn't collect light, collects waves...
Radio wave is a light…
It’s literally photons
@@LeftOfBori yeh i agree but that's what the terms "invisible lights" are for.. if you say just light it is misleading..
@@RainMaking i mean but it’s still light. You didn’t really correct them when they were already correct. Like we have X-ray and infrared telescopes. We still consider those light
@@LeftOfBori fair enough! I noticed that now😓 yes i meant to specify "invisible" sorry
Pretty much
North is not UP!
Truly an amazing peice of engineering and technology! Such a loss to the world and the scientific world... I do have to wonder what the cave that used to be under the aracebo sinkhole...
There’s a whole lot of caverns around that region of Puerto Rico.
I think you meant to say Mercury's "year" last 88 days compared to the 59 we once thought.
What is it with scientists sending messages like "come, low-technology species on a liveable planet here!" into space?
Haha right
Because we love to know everything, duh.
Okay, you describing radio telescopes as light telescopes... Admittedly, I am no expert, but I follow the sciences, and this is the first I've heard of that.
Yeah, radio waves are light. Albeit with a really lower frequency than infrared, visible, UV...
Correct term is electromagnetic waves, we can only see some of it but yeah they are all the same thing just at different wavelengths
Practical Engineering made a video about the collapse of the telescope
Si se pudiera hacer más grande, con montañas o cerros artificiales que protejan del viento, sirvieran de antenas de cerros, mejor servicio de transporte con vigilancia y servicios básicos, mejor que aluminio, aluminio transparente con otros metales ligeros, etc etc, eso sería bueno en reconstruirlo sugerencia.
4 mini cerros artificiales alrededor de 100 metros o 140 metros de altura con antenas y caminos, para en islas así poder evitar inundaciones creo, ingenieros saben más.
good ideas! i think you’re on to something here
i remember playing a battlefield game that had a map where this fell. that had to be close to 10 years ago by now though. crazy how it looked so similar to the actual footage
That map is rogue transmission. The game is *technically* only 8 years old
I have killed Sean bean at this location 1000s of times! Lol
"El Radar"
I'm concerned that Arecibo was used to track near Earth asteroids. I hope other tech is doing that now.
Pfft. We know why Arecibo collapsed. We all saw Goldeneye, silly.
Nah, it's those gamers still playing Battlefield 4.
(There's one map that's basically Arecibo, and you can snap the cables to make the receiver crash down - which is advised, because snipers like to hang out up there.)
Puerto Rico isn’t a country. It’s part of the US. And I’m pretty sure Arecibo isn’t technically a rain forest.
I hope they rebuild the telescope.
We’re a nation though. Just not independent yet
A half sphere has a 180 degree arc. The Arecibo dish was not a half sphere. It was 120 degress
I can’t believe that it was so popular in Battlefield 4 they made it in real life! Lol