This is an excuse to show you a really good tunnel

Рет қаралды 1,800,304

Жыл бұрын

The Catesby Tunnel, in the UK, is an old Victorian railway tunnel that has a new use: a secretive car testing facility, like a wind tunnel but in reverse. So rather than just show it to the world, I thought I'd answer a question: if you stick a camera on the outside of your car, how much does the drag cost you? ■ The tunnel: catesbytunnel.com/
Camera: Jamie MacLeod www.jamiemacleod.co.uk/
Editor: Michelle Martin / mrsmmartin
This is not an advert, Catesby Projects and the tunnel team had no editorial control and I wasn't paid. (In fact, I paid quite a bit for the fire safety team!)
Thank you to the many people who suggested this over the years, but in particular to David who was able to put me in touch with them directly!
🟥 MORE FROM TOM: www.tomscott.com/
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Пікірлер: 2 000

@TomScottGo Жыл бұрын

There were so many possible titles and thumbnails for this video. "Does attaching a camera to your car cost money?" "It's a reverse wind tunnel." "Testing like this used to be impossible." In the end, I just decided I wanted to show you a good tunnel.

@tau9956 Жыл бұрын

Thx I guess

@claytations Жыл бұрын

Thanks for staying honest. 😊

@Spiretail Жыл бұрын

A good tunnel it was.

@Aieieo Жыл бұрын

It is a nice tunnel.

@Acre00 Жыл бұрын

I am so happy you went with the thumbnail you did. The others feel really clickbait-y

@bonelesswatermelon420 Жыл бұрын

Tom somehow manages to continue his trend of train videos despite not having a single train in sight

@NeonCoding Жыл бұрын

"The accidental train special" would be much worse in this case

@ethanhoward389 Жыл бұрын

Train adjacent

@SylviaRustyFae Жыл бұрын

And this is totes a trains vid, bcuz my train lovin arse even got to have a moment of glee when they used the turn table xD I dont think a single trainspotter wudnt be absolutely giddy to be able to ride on a turn table in a disused train tunnel, even if just to flip a u turn xD

@traviscesarone4786 Жыл бұрын

Ghost train.

@DiegoGarcia-yl3im Жыл бұрын

@@ethanhoward389 liked this reference😅

@NEPAAlchey Жыл бұрын

Cool to see a professional in the automotive industry refer to it as an "Austin Powers turn".

@the_original_Bilb_Ono Жыл бұрын

I liked that

@Stexen Жыл бұрын

Hilarious reference. Always makes me laugh

@MonkeyJedi99 Жыл бұрын

The one time I got to drive a steam roller (just pulling into a repair bay) I shouted to the other employee, "Get out of the way!" and he just screamed in mock terror while 'stuck in place'. We laughed.

@narnigrin Жыл бұрын

That little reference made me unreasonably happy

@BaldMancTwat Жыл бұрын

Everyone I know refers to anything more than a 5-point-turn as an "Austin Powers". We even use it as a verb, e.g. "I Austin Powered my way out of there." or "I might have to Austin Powers it to get out of this one."

@ryanpenrod1859 Жыл бұрын

3mm in 2.7 km? That's an absurd level of precision even for today, much less Victorian England. What the hell?

@TheHobohobbit Жыл бұрын

The victorians were the best engineers in the world. much of their stuff is still in use today

@General12th Жыл бұрын

@@TheHobohobbit That's a description, not an explanation. You might as well just say "dwarves did it".

@pachychon Жыл бұрын

The techniques and skills have been lost to time and lowering of quality of material and workers. Money would be a big factor too, with governments using the cheapest options possible. There was also the factor of there being a high demand built around a whole industry for the country at large.

@modprog Жыл бұрын

@@partraiserhc9351 I understood it to mean that it is a straight line within 3 mm, but that straight line isn't actually tangential to earth at the tunnel center.

@ildarion3367 Жыл бұрын

@@partraiserhc9351 It's impossible to have a straight line running parallel to the earth's geoid so I don't know what you're smoking.

@n1ppe Жыл бұрын

You don't need an excuse to show us really good tunnels

@radekt.7843 Жыл бұрын

His last excuse to show us really good tunnel was maglev train

@the21andonly Жыл бұрын

especially since he's right. This is definitely one of the best tunnels I've seen

@EvanTownsend Жыл бұрын

@Max Thrower that's your girls tunnel

@arandomcommenter412 Жыл бұрын

Is this intended to sound sexual or is that just a byproduct

@avirubinoff7494 Жыл бұрын

I really like that the solution to the problem of "there are bats in the tunnel" was "build a bat hotel".

@654jimbob654 Жыл бұрын

Bats are a protected species in the UK. As they often make homes in abandoned buildings or other structures, it's common to see issues arising where renovations or demolitions are delayed because it's against the law to disturb/kill bats, damage their resting places or obstruct access to their shelters. Relocating them to a hotel is a great way of giving them a suitable replacement home!

@aim-to-misbehave5674 Жыл бұрын

And a reminder to people not in the UK that bats are rabies-free here! So while you don't have to worry about deadly diseases if you upset bats, you _do_ have to worry about the fine of up to £5k per bat for disturbing them

@kenmcfa Жыл бұрын

When life gives you bats...

@Sophiebryson510 Жыл бұрын

@@kenmcfa make battade…?

@snepNL Жыл бұрын

@@Sophiebryson510 make a bat hotel

@MoehClon Жыл бұрын

I love that last sentence "this is the closest I´ve gotten to science in a long time". I´m especially remembering the "toaster numbers don´t mean minutes" and the "I want to destroy my fingerprints with pineapple-based torture" videos as examples of Tom Scott ´doing science´.

@mistermist634 Жыл бұрын

Don't forget "throwing drums and a cymbal off a cliff"!

@lucarr1041 Жыл бұрын

meanwhile, the recommended video at the end is literally Tom standing on a science instrument. Different kind of "close", but good enough for me

@vigilantcosmicpenguin8721 Жыл бұрын

I think Tom's greatest scientific work is his audience surveying. He determined important results like the best thing, how weird his audience is, and the variations of "Jingle Bells, Batman Smells".

@MoehClon Жыл бұрын

@@vigilantcosmicpenguin8721 and how to call that owl! UN-General secretary Ban Ki-Moon

@Shaun.Stephens Жыл бұрын

He didn't say "gotten", he said "got". Tom speaks English.

@normang3668 Жыл бұрын

I love how the multi-point turn has become universally recognized as the 'Austin Powers' turn.

@markfryer9880 Жыл бұрын

It's a great universal, non offensive, easily communicated concept. Most Western people have by now seen the film or at least the short of the multi point U turn, so it now works as a shorthand description.

@leopold7562 Жыл бұрын

Me too. I used to think it was just me and my mates who used that, but it seems everyone uses it

@RCAvhstape Жыл бұрын

Not to be confused with the old "Rockford Files" flying J turn.

@supremebuffalo6322 8 ай бұрын

I also like to use Austin Powers as a verb for getting a car stuck. "I've Austin Powers'd the car while trying to turn in the alley"

@shinyagumon7015 Жыл бұрын

I liked that Tom used the fact that he uses different cameras as a way to thrown some science into the video.

@volodyadykun6490 Жыл бұрын

And some meta storytelling

@vigilantcosmicpenguin8721 Жыл бұрын

It almost feels like he's breaking the fourth wall.

@batterietyp4059 Жыл бұрын

3mm deviation off the laser is absolutely crazy to me. How did they do that?

@hongk0ngfu3y Жыл бұрын

flat earth

@glenngriffon8032 Жыл бұрын

More stringent adherence to set measurements and probably a very accurate plumb line.

@Djorgal Жыл бұрын

If you want crazy, look up the Ligo and Virgo experiments. They are like rulers in that they are devices that measure their own length. These tubes are about 4km long, but this length is known to a precision of a tenth of the width of an atom.

@stefanmadzharov9170 Жыл бұрын

my guess would be literal thread under tension

@DanielQRT Жыл бұрын

especially when considering the fact that over 2.7 km due to the curvature of the earth the tunnel rises 57 cm (22 inches) (making some assumptions)

@Zebra_M Жыл бұрын

Loved the editing on that cut from "we don't want to see the cameraman in the back - because he isn't there." Like a magic trick but not exactly secret as to how it works haha

@binbob9 Жыл бұрын

I used to work there. Jon is a great guy and a great boss. I’ve got a lot of respect for what he’s achieved and for how he’s running that place.

@bhopcsgo7172 Жыл бұрын

What was your job?

@g00dbyemisterA Жыл бұрын

Gonna be honest Tom, I am mostly upset that this video isnt about the Bat Hotel

@Tsudico Жыл бұрын

Hopefully that's the next one. I wonder where the largest bat hotel is on Earth?

@smeeself Жыл бұрын

@@Tsudico Transylvania?

@bonecanoe86 Жыл бұрын

Someone get the Tim Traveler to go to it!

@frzstat Жыл бұрын

@@TsudicoGotham City?

@geoffroi-le-Hook Жыл бұрын

Louisville, Kentucky ?

@somebystander9465 Жыл бұрын

This indeed is a good tunnel

@slink66 Жыл бұрын

Abracadabra

@MonkeyJedi99 Жыл бұрын

I wonder what happens if you drive a car in the tunnel up to 141.622kph?

@microwave221 Жыл бұрын

As someone who used to work in notoriously more active tunnels, l can say that the procedure for turning around the wrecker/fire trucks was full lock turn until you hit the wall, full lock the other way until you hit the other, then full lock again into the wall once more if you set yourself up well and twice more if you didn't. The trucks were build with this procedure in mind, the difference those last few inches made was astounding

@JackieBright Жыл бұрын

So a well engineered Austin Powers turn

@charleslambert3368 Жыл бұрын

Reminds me of the time I had the misfortune to go down a no-through-road in Oxford.

@semurobo 10 ай бұрын

So you actually physically touched the Wall? Or you Just went as close as possible without touching anything?

@microwave221 10 ай бұрын

@@semurobo actually contact it. You didn't hit it at speed, and the trucks had bumpstops or a pushpad so there wouldn't be any damage. There wasn't all that much space on either side when the rig was perpendicular, so every inch mattered

@MikeV8652 Жыл бұрын

In case anyone is confused by the tunnel being "flat," yet having a gradient: "Flat" is not the same as "level." A level line is a curved line (constant distance from Earth's center of gravity). This tunnel is instead "flat," meaning straight, not curved. It has gradient, because one end is higher in elevation than the other (probably to facilitate drainage), and the elevation difference between the ends would have to exceed the difference of the middle from level. In the absence of gradient, all water that seeps into a flat tunnel would drain to the middle, because that's the point lowest from level.

@GRosa Жыл бұрын

What do you mean by "vertically straightly"?

@MikeV8652 Жыл бұрын

@@GRosa That's a slight editing error. I meant "vertically straight," and by that I mean not curved in the vertical axis, as a level line or a line on the surface of the earth is. A straight line is, of course, the shortest distance between two points, or the trajectory of a laser beam.

@leopold7562 Жыл бұрын

I'd have said "flat" as in there are no undulations in the surface

@PownyRider Жыл бұрын

Depends on where your tunnel start. It could also run out from one end.

@MikeV8652 Жыл бұрын

@@PownyRider Only if a flat tunnel has gradient could water run out one end or the other. If both ends of a flat tunnel had the same elevation, water would drain (or marbles would roll) to the middle, because the middle sags relatively lowest from level (deepest within a spherical earth). The effects of gravity are balanced by levelness, not by flatness. Imagine a hypothetical straight (flat) tunnel from London to New York. Both ends would emerge from the earth at an angle, and its middle would be many miles deep into the earth. Clearly, any water or marbles would pool in the middle.

@Mumpy Жыл бұрын

I love how Jon Paton had to remind us that the surface of the earth is curved, just in case a certain group of people unironically cite the laser light as proof the earth is flat...

@MonkeyJedi99 Жыл бұрын

"A... fifteen degree per hour drift..." - "Thanks, Bob!"

@Grim_Beard Жыл бұрын

"Interesting."

@Runescaper1357 Жыл бұрын

In principle, it's not a dumb argument; there *must* be a distance at which the curvature should be noticeable. How long of a perfectly-level run would one need to observe (or not observe) the phenomenon? I know of the canal and mast test, and that those results can be disregarded due to not factoring in refraction from air and water. I know of a test done on a frozen lake at a distance of roughly 6km that demonstrated no curvature. I recall several other long-distance shots (10+ km) of buildings and landscapes from a camera (Nikon P900 I think?) which purportedly ought not to be possible on a curved earth. What do you think about the idea? What evidence do you know of?

@ashman187 Жыл бұрын

2.7 Km is = 8 inches per mile squared, or 52 inches of curve.

@Creaform003 Жыл бұрын

@@Runescaper1357 The easiest way to see the curvature with the naked eye, is in our shadow on the moon. There is also a place in Australia you can see it quite nicely. The Nullarbor Plains, I spent a few hours going across it in a train and it messes with your head. You can't see beyond about 10-20km in any direction. It feels like the world hasn't rendered correctly and your view distance is set to medium.

@ecospider5 Жыл бұрын

Excellent reuse of infrastructure. I feel there are a lot of old abandoned things that could be reused. It’s just that the people that could use it don’t know it exists.

@goosenotmaverick1156 Жыл бұрын

Agreed! Reuse of infrastructure could save so much in building materials alone, much less once you consider all the environmental costs that would be reduced significantly by not having to build from an empty lot. Not to mention the cool history that can be saved in ways like this!

@DJenerate Жыл бұрын

It reminds me of something similar near me in Dudley, there's a former rail tunnel that's not being used by the new tram line, so they've repurposed it into part of a test track for 'Very Light Rail'. I guess using a railway tunnel for something running on rails isn't as interesting, but it's still great to see the infrastructure being used again.

@goosenotmaverick1156 Жыл бұрын

@@DJenerate in my opinion, anything like that is interesting, I see any reuse of large scale anything, interesting. I mean, bringing back anything as even the same thing as it was, can be a process. Plus, anything developing in rail transport is also interesting 😎

@garganchua Жыл бұрын

reusing train tunnels for cars is such an amazing idea its a shame we dont do it more often. most people who drive cars like to go out of their way just to use the path with tunnels because vroom

@DarkSkay Жыл бұрын

Well-built stuff can save so much time, money, resources.

@kice Жыл бұрын

Tom's obsession with tunnels or just a big hole underground is comparable to the obsession of Sam from Wendover to airplane/logistics.

@Airbourne92 Жыл бұрын

Tom Scott is a hobbit confirmed

@DarkSkay Жыл бұрын

It would also have been interesting to see the tunnel as a kind of canal, with vehicles speeding on the water surface instead of asphalt.

@MrGreatplum Жыл бұрын

The Great Central railway main line was built to a phenomenally high standard; it’s no surprise to me that tunnel is so well engineered.

@izzieb Жыл бұрын

I've heard of this tunnel before, it very much seems they were inspired by Chip Ganassis's testing tunnel (the Laurel Hill Tunnel in Pennsylvania) which was used by his various race teams for testing. I believe Chip Ganassi began using it for testing in 2004.

@davidz2690 Жыл бұрын

And this one is in Northamptonshire, at the heart of world motorsport

@SmD-ff5xd Жыл бұрын

I don't think so. This tunnel is much larger and is available for hire, I believe the only one in the world. used not just for aerodynamics & emissions testing they also have Sunday's where it's available to the public for cycling and the like

@McAdamSandwich Жыл бұрын

@@davidz2690 Fairly certain Red Bull's F1 team has/does use it.

@davidz2690 Жыл бұрын

@@McAdamSandwich Not surprised - seven F1 teams are based nearby

@glenngriffon8032 Жыл бұрын

"Austin Powers 37 point turn" had me rolling

@JoshuaHill182 Жыл бұрын

As someone with a degree in physics, this work site really interests me. I love that it was built buy the victorians. Maybe i should send in my CV and see what happens

@abarratt8869 Жыл бұрын

That's a fabulous facility. It strikes me that it's the kind of thing that nobody thought they needed, until someone built it. And then they all realise they need it. And there's not many dead straight, long, spare tunnels around the world... Reminds me of the road testing facility Tom went to in France, with a massively heavy high speed merry-go-round on lorry tyres. Crazy, until you see the results.

@zr4937 Жыл бұрын

I live near this facility, and only just now realised what it was for. Growing up in Northampton, saw lots of random places which had abandoned railway tracks from the old railway line that was abandoned in favour of the Northampton-Milton Keynes/London line. We also have a lift tower that, well, was used to test lifts. Now we just abseil down it because we don't need to test lifts here anymore apparently, and at Christmas time we put a tree on top of it. Midlanders are weird.

@abarratt8869 Жыл бұрын

@@zr4937 I know the lift tower - driven round it. Listed building now - that's going to cost the owner a lot of money one day. Terry Wogan used to refer to it as the Northampton lighthouse. "Why," he would muse, "are they building a lighthouse in Northampton so far from the sea?".

@gilly_the_fish Жыл бұрын

With all the times Tom and crew have mentioned Thunderbirds over the years, I feel like I've watched the whole thing by now.

@vigilantcosmicpenguin8721 Жыл бұрын

100% of what I know about Thunderbirds comes from Tom Scott.

@garfythecat Жыл бұрын

I visited both tunnel heads about 20 years ago as I had an interest in the old GCR. A fascinating piece of engineering and it's pleasing to see you don't have to fight through decades of neglect to get to the tunnel now!

@uumlaut- Жыл бұрын

1:07 made me unbelievably happy. I'm glad that they opted to relocate the bats while still getting access to the tunnel

@sarahlouisebutler Жыл бұрын

I love that too, but legally they cannot disturb the bats. Bats and their roosts are protected under law in the UK (possibly internationally but I'm not sure).

@uumlaut- Жыл бұрын

@@sarahlouisebutler happy non the less. The last thing we need is more meddling with bats, haha

@binbob9 Жыл бұрын

I used to work there and it was the biggest hurdle before starting work, more so than any of the engineering bits. Took a looooong time to get sorted.

@invisiblewizard2538 Жыл бұрын

Used to live near there, it was on my regular jogging route. I remember when it was just a disused train tunnel - then all the construction, then the new road layout on the A364... Nice to see the inside of it!

@PietroNobili Жыл бұрын

This could help answering whether it's more efficient to lower your car windows or use air conditioning, I've always wondered about that

@fireaza Жыл бұрын

The Mythbusters did an episode on that.

@TSZatoichi Жыл бұрын

Mythbusters already did that, use your AC.

@RJFerret Жыл бұрын

Mythbusters tested this via measuring fuel usage over a long time around a racetrack, obviously the exact threshold varies based on vehicle, but essentially AC more efficient at high speeds (highway), open windows at low speeds (city).

@Atlessa Жыл бұрын

Mythbusters did that in real world conditions a long time ago. Their method: Have a transparent tank on the outside of the car where they could see how much fuel they used, and drive around the perimeter of a parking lot several times in varying configurations. I believe their result was that the AC was quite a bit more efficient, but keep in mind that was more than 10 years ago so car aerodynamics and AC technology have certainly progressed since.

@benwisey Жыл бұрын

Mythbusters tested that.

@rud Жыл бұрын

Legends has it that if you go in there at midnight on the shortest day of the year, you can still hear ghosts of trains past, going though the tunnel, their whistles blaring right though your soul.

@vigilantcosmicpenguin8721 Жыл бұрын

Someone's going to try trainspotting with a Ouija board.

@Crosier5961 Жыл бұрын

I had a friend who would only put $20 worth of fuel in his car because his logic was "more fuel = more weight. More weight = less gas mileage" so he saw that as the perfect balance. This just made me think of that.

@paulhaynes8045 Жыл бұрын

But it would have meant gradually putting less and less fuel in his car. Keep that car long enough, and you're not even going to make it to the shops!

@edopronk1303 Жыл бұрын

He's got a point. Although it is probably negligible, 20 liters more or less.

@Robert-cu9bm Жыл бұрын

But then you waste more detouring to the petrol station.

@bubblinebee Жыл бұрын

@@Robert-cu9bm This exactly! Stopping to get more fuel costs fuel, but my mom would never listen...

@vylbird8014 Жыл бұрын

@@Robert-cu9bm The solution is to illegally keep a big tank of fuel in your garage and fill up from that as needed.

@otterylexa4499 Жыл бұрын

I've seen videos on the Catesby tunnel before but this was definitely the best. And a fascinating little bit of science as well, which demonstrates the advantage of the set-up. You'd need a lot more runs to get that data in the open.

@otterylexa4499 Жыл бұрын

As someone else also mentioned, you could also film a very Tom Scott video on the bat hotel. With an interview with an Environmental Conservation officer.

@wanderingrandomer Жыл бұрын

I love how "doing an Austin Powers" is immediately recognisable as a term. I and a lot of people I know refer to that when botching a 3-point turn

@techdaemn Жыл бұрын

One interesting nit. Gradient aside, "perfectly flat" (or rather perfectly straight) is not flat for the purposes of coasting a car. Mentioned at the beginning, but earth's surface is curved, so if the tunnel were same elevation at both ends, but perfectly straight then effectively it's actually lower in the middle and you're going uphill slightly toward either end. If water leaked in, it would literally pool up in the middle of the tunnel eventually forming a curved surface. With the gradient and straight profile it means that the tunnel is effectively steeper at one end than it is at the other end, relative to the pull of gravity. All of this needs to be accounted for in their calculations.

@smeeself Жыл бұрын

Yes. They advertise a constant gradient of 1:176

@techdaemn Жыл бұрын

@@smeeself Cept if it's truly laser straight, then it is *not* a constant gradient in the way that gradient matters (coasting in this case). A level will measure different values at one end, center, and other end.

@quillmaurer6563 Жыл бұрын

This crossed my mind as well. Running these calculations (in a rough approximation that will at least give reasonable order of magnitude) I get a difference in angle of about 0.024°, .04%, or 1 in 2355. My guess is that this effect is so insignificant that it doesn't matter, even at the precision they are doing. Initially I figured this might be less than a rounding error for the given 1:176, but when I tried adding this new gradient I got 1:163, so it would be measurable in that given number - but still probably so insignificant they don't really care. 1:176 is probably the average through the tunnel.

@smeeself Жыл бұрын

@techdaemon Absolutely. Good point. But the gravitational difference between two ends of a 110km tunnel ( at sea level) is about 0.003m/s. For a 3km tunnel it is less than 0.000002. m/s ( I'm not sure but local gravitational somnolent might be greater than that so I'll let them pass this time) 😃

@smeeself Жыл бұрын

@@quillmaurer6563 I got 1:169 ( done very roughly too) but either way, I think your right, it's not going to factor into their work. 👍

@NichtcrawlerX Жыл бұрын

"This needs the music from Thunderbirds" I know that feeling, it always plays in my head when I see those stair single seat elevators and the like. I also always point it out and I am quite certain by now it always annoys the people I am with...

@rkan2 Жыл бұрын

Fittingly after watching Technology Connection's video about the Ioniq 5's brake lights :P

@spblz Жыл бұрын

Wild how victorians built better tunnels than Elon Musk.

@jantschierschky3461 Жыл бұрын

Everyone can

@BloodyMobile Жыл бұрын

Nice burn xD

@barneylaurance1865 Жыл бұрын

Also wondering how that's defined. Won't it depend hugely on which exact points on the tunnel you measure at the beginning and end? I wouldn't expect the shape to be that precisely the same at both ends. Or is it based on an average of measurements from all around the top bottom and side walls of the tunnel at the two ends?

@Alex-cw3rz Жыл бұрын

@@barneylaurance1865 he literally described how they did it they used a laser that put out a beam from one end to the other and it was 3mm difference.

@wellwell7950 Жыл бұрын

That's not hard

@tapio_m6861 Жыл бұрын

Oh god I thought Tom had gone to the silly Tesla tunnel. The result is interesting, and I can only imagine that they have also done tests for those roof boxes for skis. They are known to be bad for fuel efficiency, but I would like to know how much.

@BuzzinsPetRock78 Жыл бұрын

I think the scientific answer to that would be: very. 😋

@web4639 Жыл бұрын

I do think that driving back and forth at a constant speed in a straight line would actually be an ideal situation for a computer controlled car (not a tesla, don't want to ruin the tunnel).

@SirDragonClaw Жыл бұрын

How are those tunnels silly? They seem to be used by 1000's of people per day.

@finngardiner5358 Жыл бұрын

@@SirDragonClaw single lane, no fire exits, build a tram are the main ones iirc

@tapio_m6861 Жыл бұрын

@@web4639 Make a queue out of all those cars and put more seats in them. And ditch the word "car", use something more to the point. Like an underground or a subway. Or a metro.

@ericlotze7724 Жыл бұрын

1:06 I was about to be bummed, but they made them their own little bat hotel how lovely! (UF Has some MASSIVE Ones)

@jaydavis2839 Жыл бұрын

I’m so glad health and safety made you wear hi-vis vests because all the traffic on that roadway

@u1zha Жыл бұрын

More like to make rescuers see them more easily, in case of a freak accident with all lights going out lots of smoke accumulating

@phyphor Жыл бұрын

"how's that for timing?" - it's almost like you have been doing this for a while! Top work, Tom.

@alucide Жыл бұрын

Nice to see the deviation in the measurements is the same as the resolution of the measurement: 100 fps 0,01 s. And now to be as pedantic as Tom would appreciate; the mass of the car does change, as energy in batteries has mass, it's just low enough that the wearing down of the paint on the car by air friction is probably more than the change in weight if the battery, not to mention the moisture loss of the driver or the wear of the tires.

@euansmith3699 Жыл бұрын

Adam Something is correct, even when it comes to designing cars, railways are the answer. Another weird, entertaining and informative video from Tom and his crew. Now I want to see the same experiments being run with different breeds of dogs with their head out of the window.

@zoom3184 Жыл бұрын

pugs gotta be the least efficient is my guess

@pattheplanter Жыл бұрын

And different sizes of evil henchmen hanging on to the roof with varying weapons.

@laurencefraser Жыл бұрын

Nah, if you're saying that about cars, you're wrong. There are real world use cases where a the car is, in fact, the best option. Just a lot less of them than is assumed when designing infrastructure in most of the world these days. On the other hand, it would be entirely correct to say 'when it comes to designing Roads, railways are the answer (most of the time)'.

@seanehle8323 Жыл бұрын

Hey Tom! Such a random treat to "run into you" at Heathrow a few days ago. Can't believe I lost my footing like that. It's still a highlight of my trip to have met you, even if under unfortunate circumstances.

@mehalld Жыл бұрын

One of the few good outcomes of the Beeching cuts, though the "unnecessary duplication" of other lines sure could come in useful now when we're stuck on capacity.

@joshuaburgess7727 Жыл бұрын

I bet the acoustic sound and potential in there is incredible 😅

@quillmaurer6563 Жыл бұрын

Ask Richard Hammond about loud V8s and tunnels...

@officialmcdeath Жыл бұрын

GCR was the last and best engineered mainline of the steam era and Catesby Tunnel is testament to that \m/

@tigershark2328 Жыл бұрын

As an Aerospace student who's used a Wind tunnel: THIS IS SO COOL I wanna visit!!!

@Craigels Жыл бұрын

Another great video as per! I love how, even whilst providing an interesting and informative video, Tom is still able to break the 4th wall and make you think about the filming process for thsoe whom are not in the know.

@davidf2281 Жыл бұрын

I'm waiting for the video in a couple of decades where Tom just sits down in front of the camera and says, "Sorry folks, I've run out of interesting things having made a video on every single one of them. Let's play cards or something."

@BunkerFox Жыл бұрын

That would, in itself, be interesting

@godzillas6301 Жыл бұрын

In 1945 in mexico 4 men sat down to play cards and each of them was delt a royal flush ........ True tale ...... now try to work out the odds which are mind boggling .

@thegurw1994 Жыл бұрын

@@godzillas6301 well, the odds of being dealt a royal flush is 4 in about 2.6 million. So the odds of 4 royal flushes dealt in one hand would indeed be astronomical.

@otterylexa4499 Жыл бұрын

He's already announced that he will be retiring in a few years time.

@kaspernbs Жыл бұрын

I think he already did a running out of ideas video.

@dmdragonfly Жыл бұрын

Went on a couple of tours of this during its repurposing. Amazing environment inside. Of course, we walked through, so took a little longer.

@markfryer9880 Жыл бұрын

Must have taken quite a while to reconfigure the tunnel and put in the ceiling and the lighting.

@speedincooper Жыл бұрын

7:42 - "that's the closest I've got to science in a long time" Guy from earthquake tower video: *cries*

@mescad Жыл бұрын

I wonder how much having Tom in the car as a passenger affected the tests. Being inside of the car, of course he wouldn't add any direct wind resistance, but I would think his additional weight would affect drag. Likely more than the GoPros, I'd think.

@abydosianchulac2 Жыл бұрын

It would have been interesting since they'd have had the info from the run with the camera operator and equipment in the back, too, so they'd know how much he affected the run as well.

@toneddef Жыл бұрын

Perhaps they were doing a loaded vs unloaded run, to text the affect of weight. What you don't see are the six loaded suitcases and a bag of sand in the trunk.

@geoffroi-le-Hook Жыл бұрын

did we see him outside the car during a test at all ?

@martijn9568 Жыл бұрын

Tom being in the car would also add 70 kilograms of mass, which means that the car will coast for longer. Tom being in the car probably both negatively, as well as positively affected the test.

@emmahealy4863 Жыл бұрын

As a caver, I can appreciate a really good tunnel. Thanks Tom

@eadweard. Жыл бұрын

As an absolute gash hound, me too!

@mrlithium69 Жыл бұрын

gl spelunking to the both of you!

@DaLoveDonkey69420 Жыл бұрын

I always love the timing with your dialogs!

@nitehawk86 Жыл бұрын

Would love to see a series where Tom just visits tunnels. Nest time you are in Pennsylvania, visit the abandoned turnpike tunnel in Breezewood. :)

@mejiavince Жыл бұрын

That is a really good tunnel.

@Schmidtelpunkt Жыл бұрын

Aaaand there I am sucked into the rabbit hole of following the geographic patterns of a former railway line through England...

@teodorrozej4344 Жыл бұрын

4:01 As soon as he said deviation, my mind could only think of: "The missile knows where it is at all times"

@kindlin Жыл бұрын

Not by knowing where it is, but by knowing where it is not.

@smeeself Жыл бұрын

@@kindlin Forgive my ignorance but where is this quote from? Thanks.

@kindlin Жыл бұрын

@@smeeself The missile knows where it is....

@smeeself Жыл бұрын

@@kindlin Does that mean that you don't know...?

@incognitoaccount7510 8 ай бұрын

@@smeeself Its an explanation of how missile guidance systems work. Google "the missile knows where it is" Essentially, the missile subtracts where it is from where it isn't to find where it's going

@tdbla98 Жыл бұрын

The turn table at each end is brilliant! That's awesome. Also great timing Tom. Great video. Love this!

@listey Жыл бұрын

You had me at "Tom Scott" and "tunnel".

@SockGoblin801 Жыл бұрын

You turn some of the most mundane into stuff I find fun and interesting. Your energy is great for a smile. Thanks for your work.

@simonjohncasey Жыл бұрын

I love the concept of taking something from history and using it for advanced science

@simonjohncasey Жыл бұрын

I actually watched their marketing video on KZfaq and their tagline is “The future is here, and it’s 125 years old” 😊

@KeppyKep Жыл бұрын

That's a nice tunnel. And I love how you gave us a little behind-the-scenes peek AND made that half the story of the video!

@DogsWithPurpose Жыл бұрын

Glad Tom has been reunited with his true passion.. Tunnels

@bastiaan1150 Жыл бұрын

Fantastic approach to measurements!

@Oba936 Жыл бұрын

I really love it, when you show us the bits in the video where you are just happy about timing and such.

@DaLoveDonkey69420 Жыл бұрын

Love every video Tom!! One of my favorite journalist! Thankyou for everything you do!

@belg4mit Жыл бұрын

I like this. Where possible, consider doing more "actually use the facility in some way", even if it is to test something silly.

@TheFatVeganOne Жыл бұрын

The phrase "That's the closest I've got to science in a long time!" really tickled me 😅

@brianholmes1812 Жыл бұрын

I just love the thunderbirds style turntable setup they have

@DaHaiZhu Жыл бұрын

I really appreciate that they were environmentally conscious enough to provide Bat Houses for those they displaced by the reconstruction. 👍👍👍

@aim-to-misbehave5674 Жыл бұрын

It's actually a legal requirement! Bats are a protected species, and you can face fines (up to £5k per bat) and jail time (up to 6 months) for disturbing their nesting sites, blocking entrances etc

@Esperologist Жыл бұрын

2:47 - Impressed me that you had to say the line about the camera operator not being in the back twice... to be able to get the shot from the camera operator of you saying that line to blend with the shot from the dash of you saying that line.

@eekee6034 Жыл бұрын

Haha! But I think there's a boring explanation: There was probably a camera stuck to the rear window or something.

@DirkFedermann Жыл бұрын

That reminds me of (and I had to look it up) the Laurel Hill Tunnel, where a Racing Team bought(?) the tunnel and used it to develop a race car in (almost) complete secrecy.

@gordonrichardson2972 Жыл бұрын

Was that a race car that only goes in a straight line?

@otterylexa4499 Жыл бұрын

@@gordonrichardson2972 I think it might have been a racecar that only turns left.

@Soundhound101 Жыл бұрын

Absolutely nuts. I love the science you do Tom. Thank you kindly for sharing this.

@procrastinathor4594 Жыл бұрын

Yes, Tom this is great! Love your content ❤ I never knew I was in a mood for tunnel today, but here we go.

@minprez Жыл бұрын

yesterday i didn't know that it would cost you roughly 10 cents per 100 miles in added fuel consumption if you stick a go-pro to a car. but today i do, this is knowledge that I will carry with me for the rest of my life (or until gas prices change)

@yellowblue_tt Жыл бұрын

that is a very good tunnel, 10/10

@spokehedz Жыл бұрын

I love that there is a constant "Oh, of course! Right! [you make the connection] That would make a difference!" in this whole video. Even the little thing for the turntable and the remote button, you'd think might not make a difference, but then they talk about the ICE versus the EV and then my brain goes: "Oh, of course! Right! That burns fuel... And if they had to turn around the car that would be wasted fuel. And now the turntable is the same time/distance between each run, so you eliminate one more potential variation. The remote is nice and flashy, but even getting out of the car to hit a button would add more time/variables to the overall data... That would make a difference!"

@DigitalDiabloUK Жыл бұрын

Id heard about this a few months ago; great to see Tom give more details.

@LittleMountain90 Жыл бұрын

I was not ready for the phrase "Austin Powers 37-point turn" midway through the video 😂

@giraffon5487 Жыл бұрын

It was a really good tunnel indeed

@billyruss Жыл бұрын

Walked through that tunnel back in the 1970s. Amazing piece of engineering.

@riaan6960 Жыл бұрын

7:14 i love you for writing the camera costs for all the people in EU, UK and USA even though its exactly the same just different units.

@RayquaSr. Жыл бұрын

Tom, bustinh through the door shoort of breath, "I just found a really cool tunnel" Every sane human on earth, " I'm listening".

@HowlParanormal Жыл бұрын

We have one of these in Pennsylvania at the abandoned turnpike. They used F1 vehicles in it for testing .

@jlaortheshaman1451 Жыл бұрын

Everyone of your videos are amazing, I know more about the world, thanks to your work.

@yikes6758 Жыл бұрын

"we don't want to see the camera operator in the back, because he's... not there" was such a simple trick but it still got me. unmatched video editing the fact that you were doing that line in both shots must have been really funny for the shot where the camera operator was actually there

@smeeself Жыл бұрын

Are you sure that there ever was a cameraman? 😮

@mheermance Жыл бұрын

The tunnel has bats and a turntable. It is obviously a superhero lair.

@eekee6034 Жыл бұрын

Ooh! Yes, it must be! 😂 (by the way, it's "lair")

@mheermance Жыл бұрын

@@eekee6034 thanks for pointing it out. I fixed it.

@noelward8047 Жыл бұрын

This is intriguing. I have spent many hours in wind tunnels investigating things such as wind noise in vehicles.

@jamwil200 Жыл бұрын

Nice to see Tom covering this, having seen Motorbase and Team HARD test in it for BTCC!

@xxcarlos505 Жыл бұрын

Bruh... Tom, your about to hit 6 MIL. Keep up the great work!

@commodoresixfour7478 Жыл бұрын

Everything about this is cool. Including a old historic tunnel still being used and the fact they still care about the bats.

@goatcat2737 Жыл бұрын

Ok I love the tunnel but I want to hear more about the bat hotel at the end?

@fsj197811 Жыл бұрын

That was cool, especially the end results. Thanks for sharing!

@TrafficCamWatch Жыл бұрын

What a great video to show to TV networks that want to shove a camera to the outside of a race car during qualifying or a race as if it is "no big deal". It is.