Ever noticed sand in a tram? Spoiler: it’s not for sandcastles

แชร์
ฝัง
  • เผยแพร่เมื่อ 22 เม.ย. 2024
  • Shoutout to @JulianOShea for the video!
    Subscribe: ab.co/2YFO4Go
    Like: / abcscience
    Follow: / abchealth
    ---------------------------------------------------------------
    This is an official Australian Broadcasting Corporation TH-cam channel.
    Please see the ABC Online Terms of Use for the reasons why we may remove content from this page, or ban people: about.abc.net.au/terms-of-use/
  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 532

  • @garbothacan2210
    @garbothacan2210 หลายเดือนก่อน +8210

    so trams have pocket sand?

    • @the.dirt.man.
      @the.dirt.man. หลายเดือนก่อน +133

      Was wondering when I’d find another gribblehead

    • @thefirephoenix4256
      @thefirephoenix4256 หลายเดือนก่อน +59

      Pocket sand was my senior quote lmao

    • @claudiadarling9441
      @claudiadarling9441 หลายเดือนก่อน +39

      @@the.dirt.man.you mean Shackleford, Rusty Shackleford.

    • @knifeyonline
      @knifeyonline หลายเดือนก่อน +22

      Shaa shaaaaaahhhh gribble defence strategy omega activate!

    • @4-Methylaminorex
      @4-Methylaminorex หลายเดือนก่อน +14

      Pocket sand shaa shaa

  • @rollie06
    @rollie06 หลายเดือนก่อน +6085

    I think it's just funny that there's just a button that says sand

    • @bokuwautsu
      @bokuwautsu หลายเดือนก่อน +312

      🔴
      SAND

    • @whannabi
      @whannabi หลายเดือนก่อน +100

      I would've assumed it's some kind of logic gate lol

    • @kittydream_4717
      @kittydream_4717 หลายเดือนก่อน +15

      Me too 😂

    • @CreamAle
      @CreamAle หลายเดือนก่อน +62

      Thats actually an acronym. Pretty sure the car in the movie "the hangover" also had this button.
      It stands for "send asian nakd dude", and it springs out the dude in the trunk.

    • @NatalieExists
      @NatalieExists หลายเดือนก่อน +35

      RELEASE THE SAND

  • @donnyyario1726
    @donnyyario1726 หลายเดือนก่อน +2620

    "Australian Hank Green doesn't exist"

    • @theythemgae9025
      @theythemgae9025 หลายเดือนก่อน +100

      I'm glad I'm not the only one! He started speaking and I was like he's doing a good job of the accent 😂

    • @AdvayBhave
      @AdvayBhave หลายเดือนก่อน +67

      I was about to say he looks like the lost green brother.

    • @weamibrahim2146
      @weamibrahim2146 หลายเดือนก่อน +38

      I thought this was Hank short that's why I clicked

    • @timothymark
      @timothymark หลายเดือนก่อน +42

      He's a Hank Green x Tom Scott amalgamation

    • @parkourboio1062
      @parkourboio1062 หลายเดือนก่อน +8

      Little bit of Tom Ska

  • @dme3y690
    @dme3y690 หลายเดือนก่อน +1739

    Tram operators be like:
    "I love sand. It's coarse, rough, and it gets everywhere"

    • @TheFiddleFaddle
      @TheFiddleFaddle หลายเดือนก่อน +27

      This is the comment I was looking for.

    • @doomsdayrabbit4398
      @doomsdayrabbit4398 หลายเดือนก่อน +11

      ​@@TheFiddleFaddleHe can't go about his business.

    • @user-zr9hu3tf1y
      @user-zr9hu3tf1y หลายเดือนก่อน +16

      The reason this is obviously the case is that sand helps when a tram doesn't have the friction to make it up a steep hill. So sand literally helps the tram to have the high ground.

    • @archuleta1000
      @archuleta1000 หลายเดือนก่อน +2

      Ok Anakin Skywalker🙄🤫🤣

    • @Toosii2times
      @Toosii2times 29 วันที่ผ่านมา

      corny

  • @sasha-taylor
    @sasha-taylor หลายเดือนก่อน +480

    "ding-button" sounds like something an Australian grandfather would yell at a car that cut them off

    • @sachaguilhemjouan2082
      @sachaguilhemjouan2082 หลายเดือนก่อน +15

      In railway speak, the action of putting sand on the railways is literally known as "sanding". Very creative, I know XD

    • @lua-nya
      @lua-nya 29 วันที่ผ่านมา

      ​@@sachaguilhemjouan2082 Now THAT I didn't know. And it's superbly hilarious!

    • @MrMazRx
      @MrMazRx 22 วันที่ผ่านมา

      lol

  • @empiriusgraphicandmotionde6212
    @empiriusgraphicandmotionde6212 หลายเดือนก่อน +499

    my ADHD-ass brain is going to randomly and unpromptedly tell the wrong grandkid at 85 "trains had a sand button for sand" and get put in an old-folks home, so thanks for that.

    • @kennichdendenn
      @kennichdendenn หลายเดือนก่อน +17

      I dont think that trains then wont have sand. I mean, I recently saw railroad ties from the thirties... Trains aren't gonna go out of fashion that fast, as we have all that infrastructure already.

    • @justaperson4656
      @justaperson4656 หลายเดือนก่อน +26

      My autism brain is going to do the same thing, let's wish each other luck

    • @giovanigeorgis3848
      @giovanigeorgis3848 หลายเดือนก่อน

      LMAOOO

    • @jacobfalardeau676
      @jacobfalardeau676 หลายเดือนก่อน

      they used to

    • @doomsdayrabbit4398
      @doomsdayrabbit4398 หลายเดือนก่อน

      @@kennichdendenn Hovertrains.

  • @PapaDupz
    @PapaDupz หลายเดือนก่อน +801

    *Tram enters slippery conditions*
    Driver- "SHUH SHAA POCKET SAND!!"

    • @psieonic
      @psieonic หลายเดือนก่อน +10

      "You don't know who I aaam.... but I know where you liiiive~"

  • @combustiblefire5510
    @combustiblefire5510 25 วันที่ผ่านมา +42

    It works because sand is coarse, rough and gets everywhere

  • @DissociatedWomenIncorporated
    @DissociatedWomenIncorporated หลายเดือนก่อน +170

    It’s also good for keeping Darth Vader away from public transportation

  • @AdamMPick
    @AdamMPick หลายเดือนก่อน +89

    A few years ago the higher ups in Germany had the great idea that sand was damaging the rails and not realy needed for ice and snow, because of the great anti slipping tech trains have, so the new trains would not have sand.
    Then wet leafs started falling on the rails. Snow and ice, yeah computer controlled braking and accelleration can deal with that. Wet leafs? What kind of unknown sorcery is that?

    • @alistairhart9568
      @alistairhart9568 หลายเดือนก่อน +44

      Not "wet" leaves, but "oily" leaves, when they get crushed by the wheels, they leave behind a greezy residue, that causes wheel slip

    • @thegrassguy2871
      @thegrassguy2871 หลายเดือนก่อน +22

      There was literally a Thomas episode about James getting stuck on a hill because of wet leaves

    • @BierBart12
      @BierBart12 หลายเดือนก่อน +3

      That explains why the trams I know don't have sand. Thanks for letting me be lazy and not research it

    • @meta5291
      @meta5291 15 วันที่ผ่านมา

      Why not a belt of rubber? Or better yet, auxiliary rubber wheels for slippery conditions only?

    • @alistairhart9568
      @alistairhart9568 15 วันที่ผ่านมา

      @@meta5291 the whole advantage of light/heavy rail is that it's metal on metal, significantly more efficient than rubber, and a metal connection is needed for the electrical power

  • @susanne5803
    @susanne5803 หลายเดือนก่อน +757

    I knew the sand in trams is for braking. Hurray for public transportation!

    • @kino_61
      @kino_61 หลายเดือนก่อน +8

      I thought it was for firefighting like for the Romans. They couldn't use water as it was precious (for trams is more an electric hazard but still...) so they had firefighting guards with bags of sand with which they'd suffocate the fires

    • @susanne5803
      @susanne5803 หลายเดือนก่อน +10

      @@kino_61 Could you provide a source for sand being used in firefighting in ancient Rome?
      All the sources I find say only water was used and instruments to destroy surrounding buildings so the fire couldn't spread as easily.
      Also water is helpful with many more types of fire than sand is.
      Plus the Romans had advanced water technology. Knowledge about fire and materials catching fire and technology spreading large amounts of water over large burning areas were problems. Not providing water.
      My sources were several Wikipedia articles about the history of firefighting, firefighting in ancient Rome, and several papers by universities appearing when I googled "firefighting in ancient Rome", "history of sand use in firefighting" "first use of sand in firefighting", "fire bucket".
      I just can't find firefighters in ancient Rome using sand bags, sorry! Kind regards!

    • @TheBleetbleet
      @TheBleetbleet หลายเดือนก่อน +27

      Not for braking but for slip prevention

    • @larsiparsii
      @larsiparsii หลายเดือนก่อน

      ​@@TheBleetbleetWhich will happen if one brakes too hard on a wet surface! :)

    • @TheBleetbleet
      @TheBleetbleet หลายเดือนก่อน +20

      @larsiparsii if you need sand to stop, you are in big trouble already, im a train conductor in real life. Sand is usually used on uphill climbs to prevent rolling backwards when the engine is struggling to pull. Regularly using it for braking would be hard on equipment and use sand for no reason. That said, in an extreme emergency, im sure my engineer would dump sand because why not. (However, it would likely be futile)

  • @phoebemyring663
    @phoebemyring663 หลายเดือนก่อน +41

    I was on a tram that ran out of sand so we all had to get off, and that was how I first learned of this!

    • @jyvben1520
      @jyvben1520 หลายเดือนก่อน +2

      did you get back on after the problem was overcome or did you have to push ....

  • @SrihariRamadas
    @SrihariRamadas หลายเดือนก่อน +336

    Nice to see Julian extend his expertise onto ABC from his TH-cam channel

    • @ABCScience
      @ABCScience  หลายเดือนก่อน +102

      We're stoked Julian's joined the team!

    • @sophiewhitehouse6718
      @sophiewhitehouse6718 หลายเดือนก่อน +36

      omg I didnt even see this was on ABCs channel until you pointed it out!

    • @shakeelali20
      @shakeelali20 หลายเดือนก่อน +13

      Same here! Glad to see someone who is genuinely passionate about our cities getting some proper recognition. Keep up the great work Julian!

    • @EmmaAus
      @EmmaAus หลายเดือนก่อน +1

      Agreed! Seeing Julian here on ABC Science, was such a bloody good surprise 😊
      I'm literally subscribing to this channel now, just for him :-p I've avoided subscribing to this before because there's just too many animal videos etc... But already the couple he's done over here are great, excited to see more, bloody smart move hiring him, very valuable to the team! 🌈 Australias own Hank Green/Tomska haha, love Julien feeding our curiosity 🌻

  • @unsafevelocities5687
    @unsafevelocities5687 หลายเดือนก่อน +27

    PSA: When the wind blows between the buildings in Melbourne and dust picks up from the tram tracks (or an emergency service vehicle races down the tracks), don't keep staring at the road like a certain idiot writing this message did. You WILL get grit in your eyes!

    • @alexturnbackthearmy1907
      @alexturnbackthearmy1907 หลายเดือนก่อน +8

      Dont stare at roads in dry weather in general. I got reminded of it when going out in strong wind without glasses.

    • @user-zr9hu3tf1y
      @user-zr9hu3tf1y หลายเดือนก่อน +5

      The wind really does make that sand move at unsafe velocities

    • @unsafevelocities5687
      @unsafevelocities5687 หลายเดือนก่อน

      @@user-zr9hu3tf1y Hahaha, indeed!

  • @drawbyyourselve
    @drawbyyourselve หลายเดือนก่อน +19

    Funnyly enough there is a different reason for sand in trains here in germany, although it still has to do with braking.
    In autumn leaves drop everywhere and gunk up the rails, causing the braking efficiency to be almost absent. To counteract that sand is blasted from parts of the train to remove the leaves from the tracks as you brake.

  • @rachellereeve494
    @rachellereeve494 หลายเดือนก่อน +15

    IT'S JULIAN!!
    ON OUR ABC!!

  • @MiMi_MoMo
    @MiMi_MoMo 29 วันที่ผ่านมา +3

    I’ve never been to Australia, but I’ve wondered about this for years since my local public transit has it too. My favorite place to sit has always been the seat with the box of sand under it. You can feel the sand moving around when the train rocks back and forth.
    Thanks for answering a question I’ve had for years!

  • @zeldacrafter4578
    @zeldacrafter4578 หลายเดือนก่อน +4

    "Deploying sand button for sand"

  • @eliyohub
    @eliyohub 29 วันที่ผ่านมา +3

    The issue arises where you have the trams running on dedicated tracks down "sleepers" like on Dandenong Road, or the route 96 and 109 light rail. The sand builds up.

  • @Lucy-fn9rj
    @Lucy-fn9rj หลายเดือนก่อน +7

    i love simple solutions for complicated problems!

  • @samlewis6487
    @samlewis6487 หลายเดือนก่อน +8

    Public transit my beloved ❤

  • @MitchellLawton
    @MitchellLawton หลายเดือนก่อน +2

    It explains all the dust you see when trams are in Bundoora very dusty between polaris and Uni hill.

  • @MrGalpino
    @MrGalpino หลายเดือนก่อน +9

    The sparrows bath in that sand. I always wondered why it was in the tracks and on the trams.

  • @PilotTed
    @PilotTed หลายเดือนก่อน +10

    I always knew freight trains used sand, but I never knew there were passenger trams using them, too.

    • @TheFlighteur
      @TheFlighteur หลายเดือนก่อน +2

      In France we use this exact system on all of our High-speed trains

    • @emmjay22
      @emmjay22 หลายเดือนก่อน +1

      Two types of Melbourne trains use sand as well 👍

    • @alexturnbackthearmy1907
      @alexturnbackthearmy1907 หลายเดือนก่อน

      @@TheFlighteur I am pretty sure that ALL trains use sand, the only ones that dont use it are maglev.

  • @Laluan
    @Laluan 26 วันที่ผ่านมา +8

    Trams, metros, trains, locomotives, almost all have sand.

  • @PierceArner
    @PierceArner หลายเดือนก่อน +4

    I forgot I'd seen this on a tram years ago, and so now I have the answer to an old question I'd completely forgotten I'd ever wanted to ask! Thanks!!

  • @allygetch
    @allygetch หลายเดือนก่อน +2

    I'm glad to learn more about the nuances of Nick Mason's tram driving experience.

    • @sethmoreland1278
      @sethmoreland1278 27 วันที่ผ่านมา +1

      This much sand would turn me into a Jurassic Snark

    • @BonJoviBeatlesLedZep
      @BonJoviBeatlesLedZep 13 วันที่ผ่านมา

      Mr. Sandman, sand me a man. Make him the sandiest man that you can

  • @fedos
    @fedos หลายเดือนก่อน +2

    It really does get everywhere.

  • @DerpyEinstein
    @DerpyEinstein 25 วันที่ผ่านมา +7

    Free sand just left on public access property??? Ohh ho! Lemme at it!!!

  • @sofa9920
    @sofa9920 28 วันที่ผ่านมา +2

    Tram to the rails: "I'm gonna put some dirt in your eye"

  • @mobstercrow7515
    @mobstercrow7515 28 วันที่ผ่านมา +3

    My dad has kitty litter in his car for this same reason. We live in a rural area so when it snows, it's hard to drive due to the hills. Kitty litter also soaks up oil. He works in a kitchen and he emptied the fryer once and forgot to put the bucket under.... Oil went everywhere so he went to his car and grabbed the litter, he said it worked well!

  • @Misfit.Profit
    @Misfit.Profit หลายเดือนก่อน +6

    Sand is also used to stop trams/trains incase of emergency

  • @elliotalderson8358
    @elliotalderson8358 หลายเดือนก่อน +3

    “Sand deployed!”

  • @mscott54321
    @mscott54321 25 วันที่ผ่านมา +6

    Should have included literal sand dunes on the road in San Francisco next to ocean beach (just for fun, it's obviously not from the light rail (muni), but there are sand dunes on the road from wind blowing the sand onto the road next to the beach)

  • @GGreenHeart
    @GGreenHeart 24 วันที่ผ่านมา +5

    Sounds completely fake. a SAND button?? And all it does is... spit sand? And there's little windows of sand on every tram so you can keep an eye on the sand levels?!
    But it's completely true! Sometimes the simplest solution works just fine!

    • @Lefthandedbanana
      @Lefthandedbanana 24 วันที่ผ่านมา

      The high school I went to is along a tram line and on a hill there’s a mountain of sand underneath the track at all times, Melbourne trams definitely have sand in them

  • @sandrasandymanning4354
    @sandrasandymanning4354 29 วันที่ผ่านมา +2

    The Cable Cars in San Francisco have a sand container that comes in handy, especially when navigating those steep hills. It is the same deal with the underground MUNI METRO trains. They return to the terminal to get sand refills.

  • @elliottb7009
    @elliottb7009 26 วันที่ผ่านมา +14

    the tram vacuum up its own sand, run it through a filter.

    • @callsignapollo_
      @callsignapollo_ 23 วันที่ผ่านมา +2

      When it runs over the sand it gets crushed into an even finer and less useful size. Cant really recycle it because the finer ground stuff doesnt meet the the requirements after being crushed a couple times. I remember an engineer from a steam railroad museum saying that after about the 3rd pass over the same spot on their loop, the sand is basically nonexistant as far as their train is concerned. Plus, far cheaper to just get another truckload (or hopper car load) of sand than to put expensive vacuums and filtration systems on every single tram in a city.

  • @Weirdisjustabrownandyellowword
    @Weirdisjustabrownandyellowword 28 วันที่ผ่านมา +2

    That's really interesting.

  • @brw3079
    @brw3079 28 วันที่ผ่านมา +1

    I learned about this from my Little Golden Book of Transportation about 65 years ago 😅

  • @94HEATH94
    @94HEATH94 26 วันที่ผ่านมา +8

    Though it was to cover up vomit.

  • @nathanhallisey441
    @nathanhallisey441 หลายเดือนก่อน +3

    I knew someone who used to drive the street sweeper on the tram tracks many years ago.

  • @dragon_nammi
    @dragon_nammi หลายเดือนก่อน +1

    DEPLOY TACTICAL SAND

  • @b226tj
    @b226tj 13 วันที่ผ่านมา +1

    “Train on the water, boat on a track!”

  • @tondriasanders6306
    @tondriasanders6306 26 วันที่ผ่านมา +7

    This has been going on since trains were put into ise

  • @denisemurphy3915
    @denisemurphy3915 หลายเดือนก่อน +7

    Fascinating, so not the ballast I thought.
    Love My ABC 💜

  • @timtamTom.1
    @timtamTom.1 25 วันที่ผ่านมา +4

    Cool bit of engineering!

  • @feelincrispy7053
    @feelincrispy7053 หลายเดือนก่อน +2

    You’re on abc Julian!? Good for you mate

  • @RaccoonNation
    @RaccoonNation หลายเดือนก่อน +3

    HA! Jokes on you Mom! I actually CAN make a living playing with sand!

    • @goodguykonrad3701
      @goodguykonrad3701 21 วันที่ผ่านมา

      My job is literally playing with sand, gravel, and all kinds of dirt

  • @jj2635
    @jj2635 หลายเดือนก่อน +1

    Trams pulling the ol' Shawshank😂

  • @LoydRamey4
    @LoydRamey4 หลายเดือนก่อน +2

    Not only just trims but also trains

  • @ilabutcher4330
    @ilabutcher4330 หลายเดือนก่อน +8

    Very cool 👍

  • @tausa75
    @tausa75 หลายเดือนก่อน +2

    This is a cool snippet. Thanks!

  • @dshe8637
    @dshe8637 หลายเดือนก่อน +1

    I didn't know this.
    Thank you

  • @Reletr
    @Reletr 28 วันที่ผ่านมา +2

    This man would be a great guest for Jay Foreman's Unfinished London

  • @Ryarios
    @Ryarios หลายเดือนก่อน +1

    My school bus 50 years ago had sand in case the roads were too slippery for the bus.

  • @Madcapredcap
    @Madcapredcap 25 วันที่ผ่านมา +3

    Pocket sand!

  • @lemboshauser4700
    @lemboshauser4700 หลายเดือนก่อน +1

    I actually was wondering what those sand containers are for. But then I remembered the game Railroad Tycoon II were you had to build sand maintenance buildings at train stations, so that trains can run up hills. So I thought that's for. And now your video checks out that theory. Thank you and gaming.

  • @octubre_lilaka
    @octubre_lilaka หลายเดือนก่อน +42

    Nice that they also figured to work the sand into the design of the trams, though I'm curious on how difficult that makes maintenance

    • @larni_
      @larni_ หลายเดือนก่อน +20

      Maintenance to the tracks or maintenance to the sand boxes/ dispenser systems.
      I do maintenance to trains and honestly sandbox repairs are the easiest, it’s not over complicated at all. Trains built in the 90s have sand boxes, it’s not an overly new concept.
      But the tracks however! A pile of sand that gets moisture in it and then hardened by the sun has derailed trains in the past! Definitely means more maintenance to tracks!

  • @Walczyk
    @Walczyk หลายเดือนก่อน +2

    i love this guy

  • @firepower01
    @firepower01 หลายเดือนก่อน +1

    Always used to see piles of sand in the old Toronto street cars!

  • @riddlydiddly666
    @riddlydiddly666 หลายเดือนก่อน +1

    The Emergency Anakin Response Button

  • @AroAceEnbyTaste
    @AroAceEnbyTaste หลายเดือนก่อน +1

    POCKET SAND!

  • @RyanHarris77
    @RyanHarris77 27 วันที่ผ่านมา +1

    This reminds me of Shawshank Redemption

  • @mambo7461
    @mambo7461 15 วันที่ผ่านมา

    on the siemens trains they have sanders thatuse a german sand. box with a tube on certain wheels, when the train detects traction failure it will dumb sand on the tracks. Siemens are the best brakers, gotta love them.

  • @averagekerbalpilot322
    @averagekerbalpilot322 หลายเดือนก่อน +1

    In Glasgow we're developing a system to pick up the sand behind the tram wheels so we have to fill up less often
    Bit like a giant vacuum cleaner

  • @Keeereeejou
    @Keeereeejou หลายเดือนก่อน +1

    love seeing the dedicated Sand button
    all things need one tbh

  • @SythyrDraconic
    @SythyrDraconic หลายเดือนก่อน

    Thank you! :D

  • @Kaizerzydeco1
    @Kaizerzydeco1 หลายเดือนก่อน +4

    Toronto's trams have similar sand hoppers.

    • @Soccera0
      @Soccera0 หลายเดือนก่อน

      Most trams do actually! It's an important safety feature.

  • @jazzylee6840
    @jazzylee6840 หลายเดือนก่อน +7

    does the sand wear away the metal

    • @mr_interesting101
      @mr_interesting101 หลายเดือนก่อน +4

      No that’s why they chose sand

    • @TripleXMango
      @TripleXMango หลายเดือนก่อน +3

      What’s harder, sand, or metal? There is your answer. Sand will remove impurities from metal, but not the metal itself. This is why sandblasting works as a method of cleaning metal surfaces of rust, paint, debris, etc.

    • @jazzylee6840
      @jazzylee6840 หลายเดือนก่อน +1

      @@TripleXMango aha. u rite! cause i was like doesn't sanding wear away the metal but as you said it removes impurities. thanksya

  • @neroraul3550
    @neroraul3550 หลายเดือนก่อน +1

    It’s also coarse, rough, irritating, and it gets everywhere!

  • @monthmaigd
    @monthmaigd 29 วันที่ผ่านมา +2

    Thought this was Walter white ngl

    • @3liloDaily
      @3liloDaily 26 วันที่ผ่านมา +1

      me too

  • @ryanbaruah8220
    @ryanbaruah8220 หลายเดือนก่อน +1

    Dude I am not even in Aussieland and I dig this info on sand😂👍🏻

  • @amandah2866
    @amandah2866 หลายเดือนก่อน

    Wow! I was born in Melbourne and never knew this! Very cool.

  • @ccityplanner1217
    @ccityplanner1217 หลายเดือนก่อน

    I have noticed sand in a tram, but on all the trams I've been on, the indicator of how full the sandboxes are (if present at all) is a dial that gives the weight of the contents. I have not seen a tram where the indicator is a window which you look through to see physically whether there's sand in the hopper.

  • @middlenamenathaniel5717
    @middlenamenathaniel5717 หลายเดือนก่อน

    My brain thought the thumbnail was mini ladd 😂

  • @jackwriter1908
    @jackwriter1908 13 วันที่ผ่านมา +1

    Don't worry they also have one of those buttons to deploy the oil in case of being chased... by other trams 😂

  • @smhmyhouse7743
    @smhmyhouse7743 23 วันที่ผ่านมา

    "drop the sand. all of it."

  • @Idunno1707
    @Idunno1707 หลายเดือนก่อน +1

    I want a sand button now.

  • @aiden3627
    @aiden3627 หลายเดือนก่อน

    I kinda love this! Pretty clever!

  • @bigdude101ohyeah
    @bigdude101ohyeah หลายเดือนก่อน

    The Siemens trains do that too, the sandboxes were installed due to the braking problems

  • @MoonFrogg
    @MoonFrogg 25 วันที่ผ่านมา +1

    this is so neat!

  • @Daedalus117
    @Daedalus117 หลายเดือนก่อน

    The school buses where i grew up (NW Washington state) also had this feature in case of snow. Lil pipes in front of the drive wheels

  • @TheOnlyPommyman
    @TheOnlyPommyman หลายเดือนก่อน

    Heaps around Plenty Rd and the Ring Rd intersection when it's dry. It always seems dusty there.

  • @SvenDansk7
    @SvenDansk7 29 วันที่ผ่านมา

    This concept has been tried on cars as well, for snow. In 1969 Chevrolet buyers could order "Liquid Tire Chain" as RPO V75. Few were sold, and because of winter driving, fewer exist today.

  • @tesoruccia
    @tesoruccia หลายเดือนก่อน +1

    Though the sand would be for putting out fires lol

  • @adharmadharma
    @adharmadharma หลายเดือนก่อน

    Wow I’m regular tram users ( in melbourne for 20 years) & just learn this today years old 😦 thanks.

  • @FZs1
    @FZs1 6 วันที่ผ่านมา

    (A random tangent to the video:) It's not actually the smaller friction that makes steel wheels more efficient than rubber wheels, it's the smaller rolling resistance (a perfectly rolling wheel always has zero velocity relative to the rail/road at the contact point). Both of which have the root cause that steel wheels deform much less. Increasing the friction without increasing the rolling resistance would always be advantageous, it's just that it's hard to permanently increase the friction of the wheels, so they use sand to temporarily increase friction when they need it.

  • @man8god
    @man8god หลายเดือนก่อน +1

    W class trams used to fill up sand under the seats!

  • @aramisjdd6387
    @aramisjdd6387 หลายเดือนก่อน

    i work on a line where our trams don't have a good way of knowing if there is sand remaining and lots of problem with humidity too, honestly, it's a nightmare to maintain and repair

  • @charbird20
    @charbird20 หลายเดือนก่อน

    I visit New Orleans often because I have a lot of family there, and I’m always seeing sand in the neutral ground (grass medians) around the tracks and the dirt there is always super sandy. I always assumed it was because of the Mississippi River, but thought it was strange that it looked like fine sand you’d find at a local craft store.
    Thanks to this video, I now realize that that sand is from the street cars! They probably put down the sand to give themselves more traction whenever it rains (and it rains *a lot* in New Orleans).

  • @ctdaniels7049
    @ctdaniels7049 หลายเดือนก่อน

    Sand in the place where you tram! 🎵
    Theyre for raiiiils 🎶

  • @dvalentino7492
    @dvalentino7492 หลายเดือนก่อน +1

    I clicked on this video thinking that you were John Green

  • @jbmp1390
    @jbmp1390 หลายเดือนก่อน +2

    Thank you for this video. I'm in the US and I ride a light rail to work everyday and I've been wondering what those weird looking containers of sand looking stuff under the seats were. Now I know! Kudos to you good sir!

  • @foxdart
    @foxdart หลายเดือนก่อน

    Nice. Thanks man 👍

  • @HoldYourSeahorses
    @HoldYourSeahorses หลายเดือนก่อน

    If Easter specials have taught me anything, jellybeans work for traction as well.

  • @skelkankaos
    @skelkankaos หลายเดือนก่อน +1

    I love trams, I wish we had them in my city ;-;

  • @theproffessional9
    @theproffessional9 หลายเดือนก่อน +1

    RELEASE THE SAND

  • @traceyiusmemton8768
    @traceyiusmemton8768 หลายเดือนก่อน

    in the north of the UK, trams have lines above the tramz is it simular to this reason?

  • @Youtubeisstartingtosuck
    @Youtubeisstartingtosuck หลายเดือนก่อน +2

    You can see the effort and quality in this video. That’s rare these days.

  • @Rose_Haw
    @Rose_Haw 13 วันที่ผ่านมา

    That's really funny.
    They really just have a "sand" button