I took a ride on a moving radio telescope 

Tom Scott
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The Parkes Radio Telescope, Murriyang, part of CSIRO, is one of the most famous telescopes in the world: and it's got a unique way of getting equipment up and down from the central section. ▪ More about the Telescope:
Edited by Michelle Martin / mrsmmartin
(you can find contact details and social links there too)
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Publicado em


22 Jan 2023



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Comentários : 3,1 mil   
@TomScottGo 10 meses atrás
And now, a blatant plug for the podcast I host, Lateral! Episodes with William Osman, Simone Giertz, Devin "Legal Eagle" Stone, and loads more people are over at - and there are highlights at !
@eldredo2482 10 meses atrás
@chyavanavinash 10 meses atrás
@h-Films 10 meses atrás
until full visual episodes come to BRvid im not listening
@trailerhater 10 meses atrás
I really enjoy Lateral. Keep up the great work.
@minorii24 10 meses atrás
@AFGuidesHD 10 meses atrás
How the dish at that angle doesn't rip off from the building is quite interesting
@AFGuidesHD 10 meses atrás
Unless the building is mostly thick concrete and the bricks are just décor essentially
@kennichdendenn 10 meses atrás
@@AFGuidesHD if I understood correctly, its not resting on the building, but the separate central column which seems to be made out of a pipe-shaped steel outer layer and a massive steel core column.
@boogusnutsack5926 10 meses atrás
@@AFGuidesHD Like the guide said in the video, the dish and the central column supporting it have their own foundation and are not connected to the building, the building is entirely aesthetics to house personal and equipment.
@richardmillhousenixon 10 meses atrás
The dish is on a separate foundation from the rest of the building, they mentioned that in the video.
@mrdudisss 10 meses atrás
@thorflot 10 meses atrás
Can we all just take a moment to appreciate how good of a guide John is? Presenting technical (and quite elaborate) information in an easy to understand manner, coupled with little quirks and bits of trivia about the facility without skipping a beat. I assume he has done this many times, but wow! A round of applause!
@PrograError 10 meses atrás
probably had a quite a bit of school trips over the years...
@hasbullasstepdad6121 10 meses atrás
As someone who visited this telescope last year and had this legend as our guide I can agree
@soundscape26 10 meses atrás
Yep, totally agree.
@LionHeartSamy 10 meses atrás
Yup, the fact that he's using comparisons to give his audience a sense of how large things are tells me he's been doing this for a long while
@ChemEDan 10 meses atrás
He needs his own... radio show.
@lovecraftianwalrus4490 10 meses atrás
A few months ago my brother did an internship here, and when he came back the number 1 thing he talked about was how great John was and how cool it was to go out onto the dish. Honestly, I’m kinda jealous of him, what an amazing experience.
@mollusckscramp4124 6 meses atrás
That's so cool! What was the internship for?
@RandomOnes_ 2 meses atrás
How does this have 229 likes but only one reply?
@QuantumS1ngularity 6 meses atrás
Man, i can listen to John explaining stuff about radars and dishes all day long and it will never get boring or hard to understand. The guy has A TON of charisma and you can sense that this is not only a job for him, it's a passion. Amazing bloke.
@TonyBullard 10 meses atrás
I love all your stuff, Tom, but this is best video you've done in a long time. The dish is fascinating, John is a great guide, and the fact that you literally WALKED OFF THE TELESCOPE is just amazing. Great episode!
@SixOThree 10 meses atrás
When he hopped onto the ground I legit let out a “that was freaking awesome.” I had no clue it would go that far.
@paulhicks3595 10 meses atrás
I’ve worked on a couple of programs about the dish, in 1984 and 2000, and apart from being able to crawl all over the structure etc, the most memorable part for me was chatting with the astrophysicists working there over dinner. Their descriptions of deep space etc blew my mind.
@sixstringedthing 10 meses atrás
There's something about spending time among people with planet-sized brains which simultaneously makes you feel smarter but also makes you feel very basic. :)
@dani_111_ 10 meses atrás
John is a very enthusiastic and informative guide, and you can tell he absolutely loves his job. It's always so amazing to see such passionate people sharing what they love, and Tom's sheer indulgence in it is infectious. Another banger!
@Shmak1 10 meses atrás
Just wanted to say that, it seems he has been waiting his whole life to do this presentation.
@heroulttengu762 10 meses atrás
He really knows, how to show this telescope!
@glomann 10 meses atrás
i especially love how he had a feather ready ( 2:30 ) for occasions like this, you really can tell he loves his job
@donovan5154 10 meses atrás
I got that impression immediately. Didn’t seem even slightly bothered at all!
@TheMightyAgency 10 meses atrás
John needs to make sure to file his TPS Report on time.
@hcblue 10 meses atrás
It wasn't until the last 10 seconds that it actually hit me what "tilting the dish towards the ground" meant. For _several_ minutes, I was like haha, Tom's gonna do camera magic and 'hop' off the side of the dish. Just holy cow, the SCALE of this thing (and the building) is so… difficult to fathom.
@chikchikboom1 10 meses atrás
The film John refers to is called ‘The Dish’, and was made in about 2000. It’s a great movie, one of the last Aussie films that showcases Aussie larrikinism and wit. Great video, Tom!
@CheyenneRose 10 meses atrás
When Tom said "a film that was shot here more than 20 years ago" I went out in search of a movie made in the 80s, saw the film made in 2000 and thought "huh, they must have remade it then" before my temporal awareness kicked back in. *double facepalm*
@milamber319 10 meses atrás
The dismissive way Tom says "a film shot here 20 years go" as if that film wasn't fantastic is kind of disappointing
@isaacthehungry7210 10 meses atrás
The Dish is actually one of my favorite films
@CheyenneRose 10 meses atrás
@@milamber319 Let's say instead that he employed the fantastic psychological trick of mentioning important information in a way that seems trivial - listeners pick up on that cue without realising, immediately stop what they're doing, and find the film. Okay, I totally made that up, but that's what I did, so something must have worked! 😎
@line_noise 10 meses atrás
@@isaacthehungry7210 The Dish is my favourite film! I watch it a few times a year. I was a bit miffed when Tom describes the Working Dog team as "a bunch of Americans" who called riding the dish a "hayride" in the movie.
@lachd2261 10 meses atrás
I was incredibly lucky to walk on The Dish about 25 years ago at an Astronomy open day. It absolutely blew my mind as a young kid. This brought back some memories! Cracking video Tom
@MacGyver201 10 meses atrás
John is so knowledgable you can really see how passionate he is about his work. Incredible interview!
@louisgordon4388 10 meses atrás
His explanation of how a phone on the moon would be the brightest signal really puts into perspective how much data SIGINT planes can capture
@skullduggerry 10 meses atrás
This is unreal, the scale of technology never fails to amaze me! Thank you for showcasing this!
@kingloser4198 10 meses atrás
built in the 1950s too
@mastan7773 10 meses atrás
Tell me that you didn't watch the whole video without telling me
@davidroddini1512 10 meses atrás
The scale? No. This video is about a telescope, not a scale. 😉
@princecuddle 10 meses atrás
Scale of technology? Look at the great pyramids they're not just burial tombs. Look into it.
@GeneralAeon 10 meses atrás
You have no idea how well timed this was. I live in Australia and today I was actually looking to buy a decent telescope to get into astronomy and astro photography.
@LillyAvali 9 meses atrás
I don't think you can buy that one!
@JonasClark 10 meses atrás
This was abbsolutely and incredibly fascinating, all the tech in use and all the details you captured, then explained in laypersons' terms. I was picturing a "full tilted" position and saw the edge 60+ feet up; I did NOT expect the rim to come within a few feet of ground! Thank you for taking us on so many grand adventures, Mr. Scott!
@wildbill7267 10 meses atrás
As an asbestos expert from the NY City area, I approve of the Australian asbestos warning sign! Love to see how asbestos is regulated around the world. If you had a video on asbestos in your travels, I’d definitely be interested!
@petertaylor4980 10 meses atrás
I presume you've seen his video from the town of Asbestos?
@BeardedKemosabe 10 meses atrás
Being an RF engineer that worked at a step site like this but with a 72 antenna; this was my favorite video so far. Absolutely perfect.
@echoes89 10 meses atrás
I know it’s a small thing, but as a retrocomputing enthusiast seeing a mighty PDP-11 from DEC still “on duty” made my heart pump a tiny bit faster ❤
@zakiducky 10 meses atrás
The part about the energy in the feather hitting the floor being larger than that collected by all radio telescopes ever was _genuinely_ mind blowing.
@jaybehkay2438 10 meses atrás
That’s WILD
@Technodreamer 10 meses atrás
Like staring at the shadow on the wall and being able to tell that someone lit a match, miles away.
@biggusmunkusthegreat 10 meses atrás
I still have the video paused contemplating this fact. I had to replay it a few times to make sure I wasn't misunderstanding him. That's a *crazy* piece of information. EDIT: Followed up by the cell phone on the moon's surface bit. I had no idea we were talking those scales.
@jettnash5217 10 meses atrás
Genuinely mind blowing, it shows just how much information we're missing! We've learnt so much from such a small amount of data!
@jonnym4670 10 meses atrás
and the aliens are still able to hide themselves from the mess we call humanity
@destroyergordon7540 10 meses atrás
This feels so nostalgic to watch as I remember going to the Dish for work experience in school with John. Got to use the telescope to collect some data from a neutron star. I recommend people to visit it.
@gikle8354 10 meses atrás
Haha I did the same thing was a great experience
@thugson1166 10 meses atrás
What an absolute legend and an incredible teacher! That feather demonstration absolutely blew my mind, and I think everyone's. That's just incredible. This is why we watch Tom Scott
@saneerasmus 10 meses atrás
I always appreciate that Tom doesn't tell us what his interviewee said, he just shows us. So many youtubers only show small clips and then explain themselves what they learned from the interview. I see enough of the youtuber already! Show me the awesome people! Thanks Tom!
@DocTinfoil 10 meses atrás
I LOVE this telescope so much! For my 40th birthday in 1999, my 2 daughters asked "Dad, what's THE most important place you want to visit?" - So... here we went! ...Also, "The Dish" (by director Rob Sitch) is perhaps THE most gentle, kind, quirky, fun, and lovely little movie ever made♥♥♥
@devinsullivan6160 10 meses atrás
So jealous Tom. I am a Arecibo fanatic, but until they rebuild it, I needed a new favorite terrestrial telescope. Thanks to both of you for showing us a fantastic piece of engineering
@phillipbanes5484 8 meses atrás
It will not be rebuilt. The owner said so.
@ScrungleGaming 10 meses atrás
the fact a feather hitting the floor is more energy than has even been collected from the stars is mind blowing to me, it's crazy how amazing technology is
@SeanBZA 10 meses atrás
Also remember that the signal coming from Voyager is so weak that they can barely receive it with those massive dishes, and the communications back are done using multiple hundreds of kilowatts of power, sent via the same dish, and the spacecraft will only get them more than 24 hours later, and reply also 24 hours later on. Also the voyager spacecraft were never actually designed to last that long, they were actually spare Mariner spacecraft bodies that got a massive antenna grafted on to allow communications, then a RTG instead of solar panels, and thus were sent out. Now down to a little over 200W of power for use on the spacecraft, so by around 2030 they will no longer have enough power left to transmit high speed data, and soon after that will lose all transmit power, though the computer will continue to operate, and keep the spacecraft aimed at the sun for decades afterwards, but will be mute.
@gameseeker6307 10 meses atrás
@@SeanBZA like in death Hearing goes last
@davidioanhedges 10 meses atrás
@@SeanBZA ..Voyager's dish and power were deliberately designed to be a small as possible, so the signal was only just strong enough to be detected - it has a fiendish error correction protocol to try and compensate which is why the images take so long to download - it is an extremely weak signal to start with (just not by today's standards)
@SeanBZA 10 meses atrás
@@davidioanhedges Yes it is small, but by the standards for the Mariner probes it was based off it was huge, and the error correction was designed to be as robust as possible, but also as simple to implement in the spacecraft as well, as complexity at the time came with added mass, and you had an overall maximum launch mass you could not exceed. Thus the panels were made from Beryllium aluminium alloy, milled as thin as possible in low stress areas, and milled away completely where not needed, just to avoid the mass of a rivet to hold a gusset in place. Remember at this time digital decoding was done using discrete chips, or using massive computers, so to put the error correction and forward error correction in the probe they had to choose between robustness, data rate and mass, choose one, because mass is the severe limit. Even the digital data recorder was special, because it had to survive in a vacuum, and it still does work now, that design and the tapes are still holding up.
@RFC-3514 10 meses atrás
Not "from the stars". We get quite a bit more energy than that from a single star in a second. Just _for the purposes of radio astronomy._
@Kam5 10 meses atrás
I visited the parkes telescope a few years back and I can say it was such an amazing experience. Getting to learn the history behind it and the sheer scale of it was just fascinating to me
@mwiz100 10 meses atrás
Having been aware of this telescope because of the fantastic film The Dish, I never quite realized the scale of the thing until you were walking around just under it. Nor did I think when you said " touching the ground" I didn't ever think that meant quite literally. Absolutely amazing it can do that!
@That_One_Kobold 10 meses atrás
I like how Tom is afraid of heights but keeps going to high places to stand on metal mesh
@Sir_Uncle_Ned 10 meses atrás
I knew you would need to get there sooner or later. It’s amazing how this thing is still in active use and decently reliable well past the intended lifespan.
@macebobkasson1629 10 meses atrás
I just want to let Tom know that each of these journeys into these amazing places is a treasure. Thank you very much.
@davidberriman5903 10 meses atrás
Tom as a seventy year old Australian I have to say I am very jealous. I have seen the dish from a distance but not up close and personal. Given the number of pieces you have produced featuring heights I find your continued apparent discomfort rather interesting. Please keep producing this material. I really enjoy your work.
@maltava4534 10 meses atrás
One of these days you should just go down there, ask questions, and see if you can do some of these types of things! People that do this kind of work are very passionate and sharing that passion with others is one of the joys of life!
@christine4223 10 meses atrás
I agree. You would be surprised at what you may be able to do if you simply ask.
@diegopescia9602 10 meses atrás
And don't forget to turn off your mobile phone
@frankmusgrove8498 10 meses atrás
As David Berrimans relative, i once broke a dish after dinner into hundreds of pieces that i had to pick up and he told me he wasnt jealous while up close and personal....
@francistaylor1822 10 meses atrás
@@diegopescia9602 don't matter on maint day I would expect
@terrycostin7259 7 meses atrás
F****** outstanding episode and the fella who guided you explained about everything brilliantly it got my 7 year old grandson totally engrossed and already watched a few other episodes , you've got another fan already . Thanks TOM and crew 👍👍👍😍
@emgee44 10 meses atrás
Another top video by Tom Scott and crew. Seeing that massive dish tilt right down to the ground was amazing, it must have been incredible to ride it. What a treat.
@BBROPHOTO 10 meses atrás
As a deep sky astrophotographer, this is one of the videos I’ve understood the best! Really cool to see. I used to visit Goonhilly a lot as a child and the dishes there were so amazing to see, almost ominous figures. Equatorial (and Alt-az) mounts are really fascinating the way they work and are essential to what most astronomers now do. I timelapse my telescope setup pointing at the night sky a lot, but I think most people don’t quite realise they move at an incredibly slow speed making a timelapse necessary to even see the movement.
@GatvolFourie 10 meses atrás
Incredible . You really knocked this one out of the park Tom. Should have been an hour long !
@rocinante4609 10 meses atrás
I was there a few months ago. I was blown away by the size of the telescope and amazing astronomical contributions it has made.
@leonpoole7952 10 meses atrás
John is the perfect guide. His enthusiasm and the way he brings science to life in such an accessible way is amazing. Fantastic
@AdamIannazzone 10 meses atrás
You might say that he was *stellar*
@razorwork1 10 meses atrás
We all know the only reason why Tom was in Parkes was for the Elvis Festival hahaha
@robertneeds1919 10 meses atrás
John be like : "If it ain't broken, we ain't fixin' it!"
@KarlEller 10 meses atrás
He probably appreciated having a genuinely receptive audience, too, rather than a bunch of hyped up school kids.
@EsperRanger 10 meses atrás
I'm always fascinated by Tom's videos but this one was on a whole new level of interesting for me from a visual and mechanical design perspective. Thank you to Tom and his tour guide!
@StartledOctopus 10 meses atrás
As an engineer, I just want to watch the structure move and stare at the machinery at work. Amazing stuff! (not saying Tom and John aren't good! It's great to see someone as invested in their work and happy to share!... and to see Tom as agog as I would be)
@gaforb 10 meses atrás
The mic drop moment (or feather, in this case!) at 2:30 is an incredible bit of information and such a powerful demonstration of just how much effort goes into radio-astronomy. And tom's look when he hears it is a testament to that! Brilliant video, and brilliant guide work from John.
@willhawkes8875 10 meses atrás
Hi Tom, I love this video! I'm an insect migration scientist and every year we travel to the Pass of Bujaruelo in the Pyrenees to study the Autumnal insect migration. On some days we have upwards of a million hoverflies moving through the 30m wide pass, all using the sun as a compass and the wind to power their movements. It is a truly remarkable site and could be a fun idea for a video!
@zyeborm 10 meses atrás
I believe they have a submissions email address, you should send it in.
@willhawkes8875 10 meses atrás
Thank you!
@scythal 10 meses atrás
@@willhawkes8875 Do you get to see them in action? I would love to see that shown in a future Tom Scott video!
@NeonRabies 9 meses atrás
This Aussie guy explaining how everything works is incredible. He explains everything very simply while also being very informative. Fair play to you Jack. Great work. Thanks Tom
@andrewwebb3431 10 meses atrás
The idea that they can use the telescope itself as a giant crane is ingenious.
@dangeary2134 10 meses atrás
No doubt! I never thought about having the edge of the scope go down to get the equipment into the dish. But then, I should have thought of it. I’ve used the power of a piece of heavy equipment to help assemble and disassemble itself!
@bachaddict 10 meses atrás
@@dangeary2134 Mobile crane? I think self-assembling cranes are such a cool design principle
@alex0589 10 meses atrás
like treebeard picking up a hobbit
@diogenespepsi6244 10 meses atrás
Makes perfect sense, too! You already have an extremely robust and heavyweight piece of machinery to lift things high up, why not use it?
@mehere8038 10 meses atrás
typical Aussie thinking :) We invent a lot of stuff cause of this sort of style of thinking. Why work hard if there's an easier way to acheive the same result :)
@rarewhiteape 10 meses atrás
As an Aussie, I need to let you all in on a little secret: John the Dish Wrangler might love his job, but he would have been really keen to see the end of Friday afternoon so that he could go home and sink a few tinnies with his mates. Signed: Mick, A guy who also loves science and works in a pathology lab at a major hospital… also doing a science every day 😊
@estebong 9 meses atrás
I love how completely enamored he is with the whole thing
@dagras072 8 meses atrás
Tom Scott is the only person who could hold my attention talking about a telescope for 10 minutes
@jacefairis1289 10 meses atrás
I love the shot at 5:04 showing the *massive* counterweight that keeps the telescope balanced as it tilts over; it seems so impossible otherwise that it could tilt over all the way to the ground and not fall over, especially given (as he says at 6:38) it's not actually attached to the building!
@sean..L 10 meses atrás
Tom being amused by simple/understated observations is always very entertaining.
@shakespeare5215 10 meses atrás
Can we take a moment to appreciate the camera operator here, who not only kept tom perfectly in frame whilst descending a moving dish, but also kept the shot level whilst doing that, without a horizon!
@Interruptor7 10 meses atrás
most modern cameras have levels, that's why the operator managed to keep the horizon
@thoregrimm6042 10 meses atrás
The camera operator was holding a GoPro 360° camera with which you can do all that in post-processing. Not to discredit them, it's just the solution that makes the most sense for that situation.
@Ducky69247 10 meses atrás
Plus Jack is literally holding a camera on a gimbal 🤷‍♂️
@joebonomono5078 10 meses atrás
Flinging whilst as you do.
@Llorx 10 meses atrás
This guy is still living in the 60's xD
@RyanSmith-th9sz 10 meses atrás
Tom, you visit the most amazing places. Thanks so much for bringing us along!
@mitchpolley3887 10 meses atrás
I believe the entire instrument was designed by Barnes Wallis and part of the genius of the design is that clever cantilevering means that when the collector is tilted from vertical, instead of it distorting under gravity, the redirected forces actually tighten up the focus.
@ef3b75 10 meses atrás
What a great episode! I love that you showed the inner workings of the telescope!
@frapels 10 meses atrás
Been blessed to do an observation run over there a few years back. Amazing instrument. Awesome to see you stand on top.
@AnimalzyNL 9 meses atrás
I love John’s enthusiasm. Was a joy to listen to him talk about the telescope and its systems!
@Astronemma 10 meses atrás
As a radio astronomer, I was so happy to see this video! There really is nothing like going up into a dish - I've been on the Efflesberg radio telescope. I've never observed with Parkes, but I have with another Australian telescope, ATCA (they're both operated by the same institute). It's an amazing feeling when you're observing remotely from the UK, and knowing that you're responsible for such huge things turning and looking at astronomical objects for you. You might be sick of radio astronomy now, but you have got an invite to Jodrell Bank Observatory in your suggestions submission form! Come say hello next time you're up this way. :)
@muddydave01 10 meses atrás
Is ATCA the multi dish on rails one near Narrabri? I've always wanted to go take a look at that. Also really excited to see what the Murchison square kilometer array finds.
@tin2001 10 meses atrás
@@muddydave01 Yes it is. I did my high school work experience week there many decades ago. If you do visit, remember the visitors centre is now unstaffed, so you can't just turn up and get any sort of tour or ask questions. If you're making a long trip specifically to see the site, I would suggest calling them or emailing them to see if there's any chance of a tour or anything. There's a lot of technical information that is fascinating but not really explained in the visitors centre.
@MikesTropicalTech 10 meses atrás
Hey, how can we trust you to do good science when you didn't see the Vogons coming!
@marvindebot3264 10 meses atrás
He may be, we on the other hand are not at all tired of radio telescopes. Didn't you love the look on Tom's face when the guide did the feather drop analogy? Not often do we see Tom Speechless!
@zyeborm 10 meses atrás
I get giddy making a LED flash or a gate open from a distance with electronics I've made. Making a thousand tonnes dance must be next level
@joopsmit6910 8 meses atrás
John has such a great Aussie way of explaining very technical details understandably. Thanks for a great segment Tom and Jack.
@Alexander-hx2bi 8 meses atrás
What an awesome presentation by John! I can learn a lot about talking on this episode.
@Dman8derek 10 meses atrás
Tom Scott is a legend, I never know what his videos will be about but they are always great no matter how interested I think I will be from the title
@NaudRuun 10 meses atrás
This is stupendously amazing! I enjoyed every second of it. @TomScottGo could you please share the uncut long version of it? The raw footage if you can. Like many others I might watch it with enthusiasm.
This looks awesome! Thanks for showing this to us :D
@AmunRa1 10 meses atrás
I love when Tom visits something like this and gets to get a tour from someone who is clearly very passionate about what they do.
@cucuawe465 10 meses atrás
Also good sense of humour too
@RicoTalerico 10 meses atrás
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@gib2191 10 meses atrás
omg this is so amazing! so much cleverness built into this! the whole building is blowing my mind! thanks Tom for sharing :)
@Bonus_Bananas 10 meses atrás
Tom Scott you are the coolest!!! Thank you so much for the hard work you and your team put into making these videos possible. This, is what BRvid is all about ✨
@codyb3232 10 meses atrás
Highly, highly, HIGHLY recommended everyone watches "The Dish" from 2000 (starring Sam Neill and Patrick Warburton) -- it's a comedy movie about how a town in rural Australia was chosen to transmit around the world the images from the 1969 moon landing, and the technological challenges they faced way back then. Aussie humour and cinema classic👌🏻
@ccie2325 9 meses atrás
There is a visitor centre here, but you aren't allowed to go up to, or into, the dish itself. So it's great to see this up close! (And it's still well worth a visit as a tourist to the dish despite these limtations)
@ognimaeb 10 meses atrás
Having recently had a similar experience when visiting the VLA (albeit with a static dish), I can thoroughly recommend it, if you happen to visit New Mexico at some point! Maybe you could do a climbing tour of landmark radio telescopes? 🤩 And I can tell you, observing with these beauties is even more of a thrill. Best job in the world!
@Triairius 10 meses atrás
I swear, Tom, the best thing you and your team does is find passionate experts on fascinating topics and simply let them shine.
@joeturner7959 10 meses atrás
Yes, this guy, while rather matter of fact, was also BRILLIANT with his explanations.
@Coastfog 10 meses atrás
Totally, such a well crafted way of telling stories.
@MarkusManon 6 meses atrás
You found an utterly charming guide for this video, Tom! Well done to the both of you, and the cameraman
@redfailhawk 10 meses atrás
This is fascinating, and I am amazed that no safety equipment is used, but I can see how it could cause damage... and if worst comes to worst, well, you're on a giant slide.
@theone5312 9 meses atrás
This is so cool. In our observatory (Toruń, Poland) so called "riding the dish" is impossible. So nice to see this!
@Billybobble1 10 meses atrás
A bit off topic, but I have to give Tom credit for planning a schedule that keeps him around warmer weather. 100% I would too if I had the opportunity.
@toranine09 6 meses atrás
this is an absolutely phenomenal video that perfectly showcases the level of care and dedication and attention that goes into these highly specialist fields, and i dont mean to undercut that at all, but i cant silence that part of me that wants to make a titanfall 2 reference
@jimk8520 10 meses atrás
“The amount of energy the feather expended when it struck the floor is more energy than has ever been collected by every radio telescope ever” what a mind boggling comparison!
@MistaGSpecialEducation 10 meses atrás
Imagine theres an alien radio wave that hit directly at Tom at the time
@Whiskypapa 10 meses atrás
It was such a simple yet superbly powerful demonstration.
@DennisGr 10 meses atrás
no wonder a smartphone, which emits radiation in the order of milliwatts, shines as bright as a bonfire to a telescope like this, even when placed on the moon.
@Fleischgewehr 10 meses atrás
I'm not sure about every radio telescope, but there are some you can't even use cars with spark plugs around because the spark to start the combustion will get picked up. The Green Bank Observatory over in West Virginia has to keep a little fleet of diesel cars to navigate the grounds.
@briangarrow448 6 meses atrás
I knew a couple of ironworkers who had worked on a telescope project in Hawaii nearly 40 years ago. I was extremely jealous of their luck with getting the positions. The telescope part was cool, but what made me jealous was that they got travel pay from San Francisco to Hawaii as part of their pay package.
@jacefairis1289 10 meses atrás
the fact that a cell phone on the moon wouldn't just be detectable, but would be the *strongest radio signal in the sky,* is absolutely mind-blowing to me
I love the pacing of this video- intercutting Tim’s journey along the dish with all the background on the telescope leading to him going to the dish was an excellent choice :)
@jameshorner2045 10 meses atrás
I love all of Tom's videos, but this is something special. I'm so jealous, I would absolutely love to ride the telescope!
@artgreen6915 10 meses atrás
One small step for Tom, at the end! I'm not just taking a phrase from space lore in a silly way, I genuinely thought from the beginning that Tom not wearing a harness and relying utterly on correctly repositioning himself to avoid tumbling to disaster was crazy risky. Then it was revealed how the curve lines up with the ground at full deflection wasn't so bad.
@carriebartkowiak 10 meses atrás
I love how John is having SO much fun showing all of this cool stuff to someone who's excited to hear about it. You can tell he thinks it's really really cool, too.
@whytushar 10 meses atrás
Which it is! Very very cool stuff :)
After all, who wouldn't?
@hiigara2085 10 meses atrás
It reminds me of the people on "smartereveryday"
@matteomaximov4238 10 meses atrás
And also that Tom can easily understand all the technical bits
@batcrow6224 10 meses atrás
@@matteomaximov4238 You could tell when some of the questions Tom asked were about more specific parts and John looked both slightly surprised and really glad to hear those specific questions
@emmitgandlodder 10 meses atrás
Tom, your work over the years shows what a genuine BRvid you are.
The editing of this video was understatedly perfect. I loved seeing the sudden cuts to Tom just walking down the disc.
@mofire5674 9 meses atrás
The effect of switching back and fourth between the guide and the dish slowly lowering Tom down was brilliantly done.
@Astronomy_Live 9 meses atrás
I love the movie The Dish, thanks for this awesome look at the real Parkes. I always assumed the control room scenes were just a sound stage, but it looks like a lot of scenes were filmed inside the real Parkes!
@SonicBoone56 2 meses atrás
Amazing guide. Absolutely knew his stuff. Really fascinating.
@hanslehmann2124 10 meses atrás
The way you had the feeling that you couldn't tell whether you were moving, or the dish was moving, or the sky was moving... I experienced something similar a few months ago when I took an engineering tour of the very honorable Mt. Wilson Observatory, located high above Pasadena, CA. Though built well over 100 years ago with parts that had to be lugged up the mountain by mules and very primitive Mack trucks, when you're in the 100" observatory dome and they turn the dome you think the telescope is turning, not you, the observer, on what you think is a unmoving platform. It's only when they open the outside door and you see that trees are moving by do you realize what's really happening.
@ZawZaw-yb3nf 10 meses atrás
That was actually a fantastic explanation! I had no idea so little energy was collected, we know so much from little information. Also: the Alarm it sounded reminds me of regional footy games. Noice
@Srinathji_Das 10 meses atrás
Awesome video! 👍 Thanks for these nice people who share their facilities with us!
@MarkoVukovic0 9 meses atrás
This is an incredible piece of engineering, mind-blowing. Thank you!
@WillKemp 10 meses atrás
Awesome video, Tom! I've been there, but only on the ground / in the visitors' center. The telescope is spectacular enough from there, but the view inside the dish is amazing 🙂🙃🙂
@joebleasdale5557 10 meses atrás
Immediately intrigued by Tom Scott emerging from his burrow like a science-obsessed badger, and then John held my attention for ten minutes. This is a top-tier Blue Peter segment!
@zyeborm 10 meses atrás
Did he see his own shadow though? Or are we cursed with another decade of anti science rhetoric? ;-)
@buizelmeme6288 10 meses atrás
Someone should draw tom scott as a badger!
@thom7440 10 meses atrás
Tom, thanks so much for this! That gentleman's analogies w the feather and cell phone on the moon were extremely relatable. One thing that would help the video a bit, tho, would be to show a world map or map of Australia and show where this is located. I know where Australia is, but am fairly clueless about locations within Australia... Thanks!
@daveg2104 10 meses atrás
A map would be cool, for places I don't know. FYI - The "Dish" is roughly 300km (180 miles) NW of Sydney (if you know where Sydney is).
@thejesmeister 10 meses atrás
Just LOVE this! A heady mix of enthusiasm, nerdery, and joy ❤
@thundervirtual6024 10 meses atrás
Great video Tom, this feels surreal because I live only a hour away form the telescope and visited it multiple times.
@SpyroTheEternalNight 10 meses atrás
it's amazing that they've invented things that can pick up signals _that_ faint!
@alexanderbowlby4568 10 meses atrás
On this topic I had the pleasure of seeing the worlds largest radio telescope out in Greenbank West Virginia, a bit less than double the size of Parkes’. It’s so sensitive that Greenbank’s obligatory dollar general in every WV town had to take down its motion activated door opener because the telescope kept picking it up. If any of you all feel like traveling out to the middle of nowhere WV it’s well worth the trip.
@banjofries 10 meses atrás
This has to be one of the top 10 Tom Scott openings, the cold cut to Tom popping out of a manhole is too good
@origami5834 10 meses atrás
In fact, I think Tom should do more of those
@MargaretUK 10 meses atrás
Totally agree! 👍
@ValouIka 10 meses atrás
"Hey, Tom Scott here! Do radio waves actually exists?"
@Panticle 10 meses atrás
I loved that. I remember years ago, seeing a programme where a guy was going up to change the aircraft warning light at the top of the spire of Salisbury Cathedral, and he went up inside, on increasingly narrow and rickety spiral stairs, and the opened a door, and it cut to the view from below, and it was a tiny little hatch right at the top of the spire.
@cyberwomble7524 10 meses atrás
Should've been accompanied with a Clanger's whistle.
@YanastoroneRossii 10 meses atrás
The engineering behind these things is just mind-boggling.
@gmt1 10 meses atrás
Went here on a trip a few years ago and it was fantastic. Always a nice surprise seeing one of my favourite BRvidrs visit a place I've been.
@Myne1001 10 meses atrás
I highly suggest people watch the film 'The Dish'. It's a comedic take about the telescope's role in the Apollo Moon Landing. The scene where they play cricket in the dish itself is one of the most iconic scenes in all of cinema.
@mehere8038 10 meses atrás
I need to rewatch it, I thought it was golf they played, but cricket probably makes more sense. The scene where they've lost the link with the rocket that's travelling to the moon & freak out becasue how are they going to get it back, cause the sky's WAY too big to scan to find the signal within the next few days, only to realise they can maybe narrow down roughly where to point the telescope to find the rocket is my favourite
@krashd 10 meses atrás
@@mehere8038 Not seen the film yet but if I was looking to locate something heading between Earth and the Moon and I was on Earth I would point my telescope at the moon.
@mehere8038 10 meses atrás
@@krashd yup :) The way they did it was great though, as one of them looks up as they realise that & says something to the others "hey guys........ I think I know where it is" or something & points & they all look up & then the camera cuts to the moon in the sky. Probably doesn't come across in reading, but the comic timing in the film makes it really work :)
@upside_you_mop 7 meses atrás
I should