The World's Largest Telescopes

[@MotherBiscuitLover]

I'd like to suggest an episode about the Yerkes Observatory. It has the largest refractory telescope (long tube with lens on the either end, no mirror) ever made. It was constructed in the 1890s and has the unique feature that the floor moves up & down two accommodate whatever angle the telescope is at, so that the bottom lens that you look thru stays at the same height relative to the floor the observer stands on.

[@OzoneTheLynx]

What people forget is that Arecibo was a RADARtelescope. Unlike FAST it could send out radio signals too and use the echo to scan an objects structure, rotation and composition from afar. Which is/was highly valuable to analyse the threat of near-earth asteroids for example. Now we have only the significantly less powerful GSSR, which is especial sad considering in radarastronomy signal strength drops with 1 over the distance to the 4th power. And that is the only one we have now, literally nothing else like it.

[@Bhatakti_Hawas]

Someone watches Scott Manley

[@OzoneTheLynx]

@@Bhatakti_Hawas I sure do

[@Markle2k]

@@Bhatakti_Hawas Or someone also knows what the fuck is up. Regardless of who they watch. The Chinese telescope is cool in its own right. But it isn't what Arecibo was.

[@trottersD1000]

RIP Arecibo

[@Fizz-Pop]

I recently watched that come crashing down. Quite sad.

[@jphilb]

Always think of Jodie Foster when I hear about Arecibo.

[@theshadowman1398]

@@Fizz-Pop Was Sean Bean by any chance at the bottom when it happened ?

[@Fizz-Pop]

@@theshadowman1398 Loved Goldeneye, but no..it came crashing down for real. Look it up if you wanna see.

[@theshadowman1398]

@@Fizz-Pop I am fully aware that it came crashing down because it was in a state of disrepair. The James Bond reference was made to ad humor to it.

[@ManuelMonster19]

Fast wouldn't exist without Arecibo. We need a Megaproject or Sideproject on the Arecibo Telescope.

[@TylerSolvestri]

Not in Puerto Rico tho, their politicians give it no management. If they re-built one U.S government directly needs to intervene on its proper functioning.

[@johnbrown8570]

@@TylerSolvestri it isn't run by the Puerto Rico govt. Its a federal govt project.

[@raybod1775]

Biden will likely support rebuilding Arecibo. He's not anti-science like our soon to be former President what's-his-name.

[@mangalover0149]

Rip Arecibo. For now.

[@waynewright5023]

@ Manuel Aponte He already made one about Arecibo..

[@ChungusTheHumongous]

I love it when The Boy With The Blaze makes a surprise appearance on Simon’s other channels:)

[@chitlitlah]

It's the only reminder that they're sort of the same person.

[@jasonbecraft2358]

Allegedly.

[@amruthanand1330]

That reminds me.. where is the blaze? Haven't seen one in a while

[@TheCorpsehatch]

I want a reference to Danny locked in basement somewhere on Simon's other channels.

[@TechNextLetsGo]

Smash that dislike button

[@wesleymcglone6937]

Anyone else thinking that Simon has successfully cloned a few more Simons to do all these channels? Or he's going through a lot of cocaine to keep up. Allegedly

[@BackYardScience2000]

I think that he has a clone or two and that he has cloned Danny and keeps him and the other Danny clones chained to a radiator in the basement, pumping out scripts like there's no tomorrow. The cocaine is just for shits and giggles. Allegedly.

[@ChungusTheHumongous]

@@BackYardScience2000 🤣🤣🤣🤣🤣🤣🤣🤣 dude, that’s awesome:)

[@josipbroztito6763]

There are 200,000 Simons ready to host, and a million more well on the way

[@xy-fb8jo]

Simon is the son of agent smith

[@josipbroztito6763]

@@xy-fb8jo or Simon IS agent Smith......

[@Sandy.J.Lloyd.Sr.]

Talks are already in the works to rebuild Arecibo, and to build it bigger and better, time will tell.

[@heyyou5189]

Doubtful. The demise was expected for a long time yet little was done to secure a plan and fund it before it finally collapsed.

[@venera13]

The year is 2027, youtube is 80% Simon channels.

[@yur_boi_shawn..]

🤔 I assumed he'd have taken more power and control by then..

[@Reklaimart]

Yeah just waiting for youtube ti change the name to SimonTv

[@toddnolastname4485]

If that's true, it's because everyone else would have run off to find a place where speech is actually free.

[@canuckloyalist4681]

Good time to do one on the Arecibo radio telescope.

[@anarchyantz1564]

Why? It's a derelict junk pile due to them wasting murican tax dollars not bothering to keep it updated. Thankfully murica will not keep having to put into this money sink.

[@josipbroztito6763]

Oof too soon :(

[@yur_boi_shawn..]

Sad face..!

[@JohnDoe-tt6bh]

Yeah... rip .

[@canuckloyalist4681]

@@anarchyantz1564 Arecibo has had many discoveries that are quite noteworthy .www.sciencenews.org/article/arecibo-telescope-collapse-astronomy-discoveries

[@Elysia_Fields]

Simon: I have a new channel. Me: *whiplash Leonardo DiCaprio meme* Me: *also immediately subscribes*

[@sandybarnes887]

Business Blaze Mega Projects Side Projects Top Tenz Today I Found Out Biographics Geographics Highlight History Xplrd Visual Politik EN The Simon Whistler Show I may have missed one. Visual Politk EN is now hosted by someone else. The Simon Whistler Show hasn't had new content for a while.

[@PalandroseEndgame]

this channel is the perfect blend of geographics and business blaze. i love it.

[@Deathven1482]

RIP Aricebo. You were an icon for your time.

[@thaswami9900]

RIP Arecibo 😢

[@WayneKitching]

When I started watching the video, I was hoping to see SALT from my home country. Seeing that you did cover radio telescopes, how about covering SKA, the Square Kilometre Array, also in the Northern Cape, South Africa?

[@elliotsmith9812]

Arecibo was not parabolic, it was spherical, that's why it needed the corrective structure at the focal point.

[@matthew.datcher]

6:10 "Eye to the sky in mid-July". That witty Whistler poetry!

[@carston101]

My God, give Simon another year or 2 and half of my subscription box will be channels run by Simon LOL. Keep up the good work!

[@sandybarnes887]

Business Blaze Mega Projects Side Projects Top Tenz Today I Found Out Biographics Geographics Highlight History Xplrd Visual Politik EN The Simon Whistler Show I may have missed one. Visual Politk EN is now hosted by someone else. The Simon Whistler Show hasn't had new content for a while.

[@carston101]

@@sandybarnes887 omg.... I knew about "Mega Project", "Side Projects", "Biographics", "Geographics" and "today i found out" but there's so many more.... Damn Simon, hats off to you for keeping up with all that!

[@sandybarnes887]

@@carston101 well suppose you really will have a Happy New Year 🎉

[@carston101]

Rip Arecibo. Could you do a video on the history or Arecibo?

[@Hardcase_Kara]

@@deadzio Can you link please?

[@wesleymcglone6937]

Am I the only one who thought it was funny that the Chinese telescope that takes ten years to discipher the information was called FAST?

[@angelarch5352]

Some country needs to make a giant telescope called CHEAP ;)

[@extragoogleaccount6061]

Thats a testament to the amount of data it will be collecting on full sky scans.

[@johannweber5185]

I wanted to note that the advent of larger telescopes does not make the smaller ones obsolete, because it is extremely difficult to successfully apply for observing time for the biggest telescopes that chrrently exist.

[@springbok4015]

Thanks for covering South Africa here, Simon. Great video.

[@WayneKitching]

Voorspoedige nuwe jaar! Is jy 'n SAL vlieënier? Springbok401 klink na 'n SAL vliegtuig se roepsein.

[@WayneKitching]

He should also cover SKA, the Square Kilometre Array with the Astronomy Advantage Act that imposes the no-fly zone and ban on all electronic devices within a certain radius.

[@ehmmmjay9907]

Oh look, it's Simon Whistler Day on my feed!

[@ChungusTheHumongous]

Pretty much a normal day on my feed lol:)

[@BigZebraCom]

@Sideprojects Thanks so much for doing this! If you do another video like this, please consider the Chime Telescope, which has been able to locate FSB (fast radio bursts). Chime is an acronym for Canadian Hydrogen Intensity Mapping Experiment. It probably didn't qualify for your list since it's made of 4 distinct telescopes instead of one giant telescope. Thanks again for all the great content.

[@AcornElectron]

Unlike aricebo it hasn’t just collapsed and destroyed itself .....

[@lorelbelli]

Arecebo was built in the 60's though

[@paulmoffat9306]

Wait for it.......

[@1986krazy]

This was probably recorded before it collapsed. He does a lot of videos, after all.

[@AvB.83]

I could have sworn the Very Large Telescope or at least the Extremely Large Telescope would have made it to the list...

[@dave8599]

Perhaps if the scope was named Mega Mega Mega telescope?

[@ignitionfrn2223]

2:20 - Chapter 1 - Fast 5:20 - Chapter 2 - Gran telescopio canarias 8:25 - Chapter 3 - Daniel K. inouye solar telescope 11:10 - Chapter 4 - South african large telescope

[@thedarksun8891]

"it's all corn?" "Always has been"

[@erichpizer1]

forgot about SKA. The Square Kilometre Array (SKA) is an intergovernmental radio telescope project being planned to be built in Australia and South Africa. Telescope style: phased array Collecting area: 1 km2 (11,000,000 sq ft). I worked for TFD when we worked on SALT . the last item in the vid. it was a cool project. we just focused on the mechanical design aspects, some of them. many companies were involved.

[@estraume]

I guess the script of the video was written before Arecibo radio telescope collapsed.

[@Hobbes4ever]

with gravitational lensing the largest telescopes are actually entire galaxies

[@michaelhowell2326]

Didn't the Arecibo Telescope collapse a few weeks back?

[@sandybarnes887]

Yeah. kzbin.info/www/bejne/a2q6gnyIq8qtsKs

[@Amethyst_Dragon_]

Sadly

[@Reklaimart]

KZbin- how many channels would you like? Simon- .... All of them!

[@GarfieldRex]

South African telescope is really impressive and a very well deserved achievement 👌

[@Toothpickundertoenail]

You're work ethic is legendary

[@baz6128]

I visited SALT some years ago when I was in South Africa. Amazing facility.

[@erictroxell715]

Anything you make I HAVE TO WATCH....i think I'm addicted?? 😆

[@andrewday3206]

Wish the Keck I and Keck II along with the VLT were covered along with 747 based SOFIA IMHO Missing these was disappointing though what was covered was very cool 😎 Great vid 👍🏼

[@Sandy.J.Lloyd.Sr.]

Simon you left out the new Vera C. Rubin Observatory that is currently under construction, it has a 28 ft mirror and a 3.2 Gigapixel camera, the camera can cover 3.5 degrees of the sky at one time. Just for a reference the sun and the moon take up only 1/2 of a degree. It will also be able to see in the near-ultraviolet to the near-inferred. This is one hell of a telescope.

[@kaiying74]

0:50 That feeling never goes away, no matter the cost of the scope. It's always "Fuck, I thought it'd be bigger"...oooerrr.

[@Blackpearlmatt]

It’s a shame you didn’t mention the VLT, which is an incredible bit of kit. Also wanted to mention how extremely difficult it is to actually borrow time on one of those telescopes even for a small observation

[@beachboy0505]

Excellent videos, now we know where the excelent space theories that pops up on social media 😀 comes from.

[@OGA103]

Sounds like Simon is reliving a particularly disappointing Christmas gift from his childhood. Let it go, Simon.

[@vonpupees]

F for aricebo, also there was a few things aricebo did better than fast. one of which is tracking near earth asteroids to hep with future paths predictions.

[@dominicwaghorn6459]

Rip aracebo

[@49walker44]

Is there a good channel for following general astronomy? Also a good source for what interference starling causes. Thanks for your work.

[@KelticTim]

Oh so happy. For weeks I’ve been looking for xlprd and couldn’t find it. I’ve got you know you beautiful bastard! I’ve read your book!

[@sonicninja3434]

This guy running around "Hey kid, want some knowledge?"

[@TheQuickSilver101]

Those are truly impressive telescopes. I was fortunate a kid, I didn't have a $40 telescope from Toys R Us but my friend's dad had a very nice telescope in his back yard. I remember looking at some of the craters on the moon with amazement.

[@alexrossouw7702]

I've been to SALT when it was still under construction. The mountain is Martian af. It has red pebbles on red soil for miles, with cold thin air. The inside looked futuristic with those hexagon mirrors and other spacey tech. The building was made out of polystyrene insulation; like a giant fridge. It was a cool experience with my dad who worked on SALT's humble elevator, and was worth the stay at a shitty hotel in Sutherland.

[@MrMcGreed]

Do one on the Hubble and Webb telescopes? Though maybe they should be full scale mega projects?

[@zzippo81]

Whoa, stop the presses. Simon has a new channel? Noo Waaaay!

[@vitabricksnailslime8273]

They should feel totally ashamed deforesting that barren landscape in Haleakala. I for one was prepared to chain myself to a tree to stop this senseless clearing and would've been successful if I could only find one. It just breaks my heart.

[@jekanyika]

Apparently the Chinese dish cant do active scanning like Arecibo could.

[@TylerSolvestri]

Lol, it's only big but not technological revolutionary.

[@lorelbelli]

How about a video on Arecebo

[@joradnhickey5296]

Oh good ! Simon needs more channels, it will give his wife and child a chance to see him more !

[@ernestolombardo5811]

No no no no no... I don't remember ever reading that Galileo invented the telescope. Rather, telescopes were primarily invented to detect approaching ships from port. They were used horizontally. Galileo's subtle but quantum leap forward consisted in pointing it upward at the night sky.

[@michaeljohnston6856]

Hey I’ve asked for this. Love y’all happy new year

[@TheSilmarillian]

Another great upload and have subscribed to new channel

[@mattcrad8605]

Danny K Inouye won the medal of honor for being a warrior of epic proportions and the description you give em is "A career politician w questionable ethics violations". Shame on you my man.

[@applejacks971]

How do they keep the mirrors clean and dust free, or is that much of a factor? Very interesting video!!

[@densealloy]

The "Five-hundred meter Aperture Spherical radio Telescope" is called FAST but since the can choose to capitalize whichever letters they want, why didn't they call it the "Five-hundred meter Aperture spherical Radio Telescope" FART?

[@leahbray1862]

Could you please do a video on the telescopes that orbit the earth, including Chandra, the X-ray telescope and it’s role in imagining the black hole? Thanks!

[@grafgeo9194]

Side fact: Kopernikus hardly watched the stars, because he was extremely short-sighted (i mean close to blind). He calculated tons of data from Tycho Brahe's observations.

[@Alan_Hans__]

3:53 . A tad ironic that the wording was "while the telescope at Arecibo is fixed". The telescope may not have been movable but as of just recently it has far surpassed the ability to be fixed.

[@kineticdeath]

actually it showed itself to be very flexible, even the massive concrete towers have now laid down and have matched the contours of the terrain lol

[@brandonhilton3418]

You put out so much good content I don't see how you ha e time

[@tomniedringhaus2755]

You didn’t mention the Yerkes Observatory the world’s largest refracting telescope.

[@thephoenixscotland]

That is correct on both counts.

[@Benson_aka_devils_advocate_88]

Rest in pieces Arecibo!

[@SuperKingslaw]

Unfortunately, FAST isnt designed to be able to do RADAR astronomy the way the Arecibo did. Arecibo was able to do Radar mapping of the Moon, Venus, Mars and other Solar System objects directly. FAST will be unable to do this. Check out Scott Manleys recent video on this topic.

[@larryscott3982]

Arecibo deserves a full MegaProjects

[@Shockedbywater]

His next channel will just be a guide to his channels.

[@sandybarnes887]

Ok. Business Blaze Mega Projects Side Projects Top Tenz Today I Found Out Biographics Geographics Highlight History Xplrd Visual Politik EN The Simon Whistler Show I may have missed one. Visual Politk EN is now hosted by someone else. The Simon Whistler Show hasn't had new content for a while.

[@c3920]

Simon will soon have all the KZbin channels, he already has most of the ones I watch,

[@schristy3637]

Simon is a poet "The eye to the sky in mid July".

[@TheBenji800]

I thought this had ended early when it didn't mention the VLA or any of the worldwide link ups of radio telescopes to produce virtual arrays. Not to mention the planned space projects.

[@stoneymoloney]

RIP ARECIBO

[@bamacopeland4372]

I was honestly hoping for a business Blaze New year's Eve style video. But I will maybe he'll drop it tomorrow and we'll have a New year's day one.

[@metgath]

The Arecibo observatory is no longer fixed, over a month ago it was damaged. Bad play on words aside, the observatory is set to be decommissioned by the US National Science Foundation due to the failure of multiple cables .

[@lul202]

I think Sutherland is closer to Bloemfontein than Cape Town. We need Simon to start saying Bloemfontein in videos ...

[@clancyjames585]

Needed the H.E.S.S. 25m telescope. Or maybe was going to do it, then realised it was just too damn complicated to explain TeV gamma ray astronomy. Nice to have astronomy get some more love though!

[@JohnDoe-tt6bh]

Array observatories are more efficient, can collect far more data too like the Big Ear.

[@GreenStarTech]

How about a video on the Square Kilometre Array?

[@shaunbowman8036]

oh man!! U didn't talk about TMT - or the "Thirty Meter Telescope" - I guess because it's not finished yet.. I worked on that in college lol

[@aitchie4532]

What about SKA? The Square Kilometre Array, and it's pilot, MEERKAT; both in South Africa, though parts of SKA are in other Southern African countries and Australia.

[@ianlowery6014]

The low frequency observatory, consisting 0f 131,072 antennas spread over a huge area is in one of the world's electrically quietest zones which is in Murchison, Western Australia

[@ClyntonVDB]

No mention of the Square Kilometre Array

[@CULatte]

The James Webb Space Telescope is scheduled to be launched on Oct 2021. A possible candidate for a megaproject?

[@jeanbonnefoy1377]

2:03 mixing on the same level Copernicus, Kepler and ... Hubble is a bit ludicrous, even just for the sake of name dropping. Maybe Copernicus, Kepler and Tycho Brahe would have been more fitting with what you tried to imply... (mainly that those gentlemen of way back when couldn't have guessed the marvels of contemporary technology...)

[@TheEvilCommenter]

Good video 👍

[@pieter-bashoogsteen2283]

Pretty sure scientists were already able to study gravitational waves before this radio telescope.

[@sbuttgereit]

More than that... They were using detectors actually capable of detecting them. Probably why they got the Nobels for the work. FAST is way the wrong type of telescope for gravitational wave detecting... If we can use a radio reflection surface to focus and detect gravitational waves... We can probably also use that to create an anti-gravitational device of some sort. Reading a better source, they intend to use FAST to -infer- the presence of gravitational waves acting on other bodies; so fast will still be observing electromagnetic waves, but at a high enough precision (they hope) to see what they're looking at jiggle because of passing gravitational waves. They be looking at pulsars apparently.

[@FragFrog01]

The largest radio-telescope is arguably LOFAR. Only if we talk about single-dish telescopes does the Chinese telescope top the list. And while it's more advanced, it lacks Arecibo's radar functionality; it's far from a straight upgrade.

[@brendakrieger7000]

Thank you🔭🌌

[@Whisper555]

What I want know is, how did they shoot the video so Simon looks like he is being displayed on a TN panel while Im watching the video on an IPS panel?

[@polarbear1754]

How many channels does one man have time for?

[@ernestolombardo5811]

Needs more Keck and Subaru (liquid mercury surface glass) in Hawaii, VLT (Very Large Telescope) in Chile.

[@justsomepersononyoutube9271]

2020 is Nearly over woah

[@howellgreenland2506]

The past was the worst....allegedly!

[@quinnzykir]

For England, James?

[@mikesullivanteexpat8712]

very much a case of keeping a close eye on the universe.

[@KronosGodwisen]

SALT may be a Dalek. I mean, shouldn't we be concerned about a giant Dalek or are we too worried about the Sun being made of corn to notice

[@CHKNFNGRZ]

Press F to pay respects to Arecibo.

[@gfpronk]

So why isn't LOFAR on this list? A radio telescope with the size of 1/4 of Europe.

[@underwaterlaser1687]

Is this a re-upload? Neither Toys R Us nor Arecibo exists anymore.

[@PitboyHarmony1]

You need to normalise the sound between the different channels. Its almost like either each channel ... or even each taping day sounds different to another. Its not so hard to find a sound setting (distance to mic, gain, eq, etc) and just r5ince and repeat every time you record. The different colourspace, contrast and other visual differences is fine, but the sound is jolting if a viewer is watching more than one video in a sitting.