How old are you now?!🙄🤔

I am 43 now.

@@yishujia186 and what was your age when you were little boy?!🙄🤔

I was curious about this when I was about 8-10 years old. As I learned more in school as a teenager, I started to know the purpose of the weight. But I still don’t know the rest of the mechanism.

@@yishujia186 thank you. i was just curious 😄

I think you should've learnt this already by yourself, from the roof of the train the observation should be relatively easy

@@laurisikiosometimes observation itself may not spark the need to understand

100 💯

@@laurisikio lmao

@@laurisikio why would someone sit on roof of train?

I think it’s a whole team

👏

Well said, I only wish schools too taught this way.. If this topic was taught in school, the teacher would just draw the entire diagram tell what the names of the components and then move on

That depends. Those sleds are only found on section-insulations in The Netherlands. The rest just 'interceps' and 'leave' the current contact wire by raising it from the contact wire that really is in contact with the pantograph. Sometimes, composite-material drive-able insulators are used. Long, cilindrical elements between two sections to create insulation while also being able to drive under them with the pantograph while applying power. For section-insulation, we use those sleds (with a rather large type from RIBE being ever more common). But normal Dutch trains run on 1.8 kVDC only, that makes things quite a bit more easy (and complex at the same time due to the high currents involved)

Proof that u r European train driver??

Jumper cables were mounted facing the wrong way. Need to be coupled in a “C” fashion facing direction of travel to help prevent the jumper from getting snagged if loose.

@@Hockeyking86 We just don't connect jumper wires like that in The Netherlands at all as almost all of our tracks are double and secured like single track (in professional terms: Double single-track safety). It just means that both tracks can be driven on in both directions should this be necessary. Jumper wires are made with long wires connected to the contactwire, up to the catenary wire (with a stress-loop in between to allow for movement at different temperatures) and then extend over to the newly added wire. Usually we double this wire and you'll see two loops. An even more complex situation can be seen here: www.m-voorloop.nl/modelbouw/blikopbovenleiding/bovenleiding-krul-draagkabel-rijdraad.jpg

@@sanjayvaradharajan he has no proof. he is a martian train driver. an alien in disguise!

There’s nothing extraordinary in this design. The idea is to just keep adding more supports. I’m sure a smart 10 year old would have come up with a similar thing if tasked with the right materials and tools.

@@frizzby-x Of course they can. But when done, they'd be in their 20s xD

@@frizzby-x so you can design this? Please, sit down peasant.

​@@frizzby-x 🤓🤓🤓

This problem was explained in another video "The Brilliant Engineering behind Pantographs!"

You are correct in this point. But I don't see how playing something on TV effects you real life capabilities above a superficial insight.

Sounds like you watched the other lesics video on cable trollies

@@jackmclane1826 Perhaps he was joking.......

@@jackmclane1826 nothing gets past this guy!

Yes and the Taurus sound!

kzfaq.info/get/bejne/gd59oaShppvGk5s.html

It didn't happen in a day, nor by a single person.

Exactly, it's the combined effort of many many people sharing insights, experience and results. You are just seeing the end result!

i bet you can imagine what they had to do before they realized they needed a more advanced design

It’s not that is nuclear fusion either! These systems were finalized in the 50’s with little newtonian physics and more medieval ingenuity… You know… 40 years after Einstein presented his theory of General Relativity!

@pana riello It wouldn't even surprise me at this point! Hahaha

This world is rapidly passing away and I hope that you repent and take time to change before all out disaster occurs! Belief in messiah alone is not enough to grant you salvation - Matthew 7:21-23, John 3:3, John 3:36 (ESV is the best translation for John 3:36) if you believed in Messiah you would be following His commands as best as you could. If you are not a follower of Messiah I would highly recommend becoming one. Call on the name of Jesus and pray for Him to intervene in your life - Revelation 3:20. Contemplate how the Roman Empire fulfilled the role of the beast from the sea in Revelation 13. Revelation 17 confirms that it is in fact Rome. From this we can conclude that A) Jesus is the Son of God and can predict the future or make it happen, B) The world leaders/nations/governments etc have been conspiring together for the last 3000+ years going back to Babylon and before, C) History as we know it is fake. You don't really need to speculate once you start a relationship with God. Can't get a response from God? Fasting can help increase your perception and prayer can help initiate events. God will ignore you if your prayer does not align with His purpose (James 4:3) or if you are approaching Him when "unclean" (Isaiah 1:15, Isaiah 59:2, Micah 3:4). Stop eating food sacrificed to idols (McDonald's, Wendy's etc) stop glorifying yourself on social media or making other images of yourself (Second Commandment), stop gossiping about other people, stop watching obscene content etc. Have a blessed day!

What is a railway school?

@@nhytg376tgyuu765gjmg where students get a degree to work in railways, no matter the degree level: operational, technical or university courses

Well, I wouldn’t… there are a few factual issues with these videos.

@@michelpereira3194 Everything with the railways themselves right? As the train drivers get educated via the operator

@@gwyneddboom2579 All explanations are incomplete. By your logic every description of any matter is flawed.

they spend more time dealing with science instead of a church. That's the best way to ADVANCE instead of dwelling on stories written by people that sanctioned science as witchcraft

yes

I want to know how generator make electricty

Yes, very similar concept. You want both the contact wire and the road horizontal!

It looks simple because railways where always about efficiency. 200 years of innovation trying to find the simplest working solution.

I can assure you tht railway Engineering is tough man. 😂. Interesting but tough

Can you share pictures Bill? It sounds interesting.

@@matteopietrobelli8610 If you google "New Haven Railroad electrification" and go to images, you can see a few examples of it pop up. It is a very neat and elegant design! Apparently, the London, Brighton and South Coast Railway used it too.

that makes sense, nice!

I agree. The "practical" demonstration is better than having all animation / CGI. It offers proof that the wire will sag under its own weight and cannot be level without the additional support. Theoretically one could create animation that arched the wire up between supports. A practical demonstration shows why the wire arches down. My local electric railroad has constant tension complex catenary with each arm pulling the wire left or right from center as well as supporting the messenger wire above and contact wire below. At the transfer points between wire segments each wire rises upwards from a middle point where the wires are level. Constant contact against constant height constant tension catenary. Places where the power source changes from one substation to another are designed differently so the pan does not short the two circuits (but that is beyond the scope of this video).

That makes sense. I wonder how often the contact strip on the pantograph would have to be replaced.

Watch from 4:00 . The pantograph isn't having a single point of contact

This was covered in their past video : kzfaq.info/get/bejne/fbCSiKxjqZnWfI0.html :)

@@commieSlayer69 yeah, you need to have a transition from the old contact wire to the new contact wire, otherwise the pantograph will catch and break

He meant straight from the side perspective.

@@commieSlayer69 Nice username :D

I believe it is explained in another video on this channel. I believe it is the video about pantographs.

And disadvantages also. Batteries don't last long and diesel is why we have trains Disney made a monorail but that requires raising the rail above the ground way above. Sky bus was a big failure in Pittsburgh no one wanted it in their neighborhood. 73

They explain this in their other video about pantographs

Between the two networks there will be a 'neutral' section (no voltage) where the supply from one country finishes and the supply from the next country starts. The locomotive driver will know that they need to coast between the two sections. If the two networks are the same voltage and type (for example 25 kV AC) then the loco just continues on. If there is a difference in voltage or supply type (maybe one is DC and the other AC) then the loco has to be a 'hybrid' type which can deal with the different systems and it will automatically switch to the different voltage or system.

ficava vendo o contrapeso e as polias durante os congestionamentos na marginal, mas nunca parei para pensar sobre as catenárias. Ótimo vídeo.

That's the funny thing ;) Amsterdam almost only has the simple wiring system, while Rotterdam and The Hague usually has the more complex systems.

Oh hi, love your videos!

that's why the bigbrain behind these amazing videos rarely appears in the videos himself

That's the thing, it's not a simple power carrying wire, it's a robust power delivery system which has to deliver to a moving target. If all it had to do was carry power, the sag wouldn't matter. I can't think of a simpler way to run a wire to a moving target though.

I think I'm blessed because if not I wouldn't have met someone who is as spectacular as expert Mrs Sophia

I think that she is the best broker I ever seen

She is real and trustworthy

Yes I'm also a living testimony of expert Mrs Sophia

Who's this professional everyone is talking about I always see her post on top comment on every KZfaq video I watched

Yep, that's what they said. Pretty cool.

@@KurtRichterCISSP yeah. You can't put a pole every 5-8 feet, but you can put a support wire that frequently. The video does a good job of going over why each element is added step by step.

this is all ready happened

But one thing that is not the best about you is that you ask for 1k without any videos

@@stevyn9276 I like it😁

@@respect.cr07 😌✌️