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   djsumdog (djsumdog@djsumdog.com)'s status on Monday, 14-Aug-2023 03:51:30 JST djsumdog

   in reply to

   • Trammell Hudson
   • Benjamin Balder Bach
   • malte
   I mean ... we're talking about a train driver. They literally drive the same routes over and over again for their careers. When they get a new route, they're going to learn all the tricks pretty quickly.
   
   But it is super impressive the huge jump in resistance between smooth metal on metal vs tires on pavement. A car in neutral would need a much steeper incline.
   
   Also the trains in the Netherlands are fucking huge! It's hard to explain unless you've seen them. They don't look that different from the inside. The train looks like it's on standard gauge track. But the trains themselves just feel massive. The weight itself probably helps with the downhill acceleration.
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     malte (malte@radikal.social)'s status on Monday, 14-Aug-2023 03:51:34 JST malte

     in reply to

     • Trammell Hudson
     • Benjamin Balder Bach

     @benjaoming @th @djsumdog That sounds reasonable. Impressive, because it would imply that the train driver knows this in advance.

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     Benjamin Balder Bach (benjaoming@social.data.coop)'s status on Monday, 14-Aug-2023 03:51:36 JST Benjamin Balder Bach

     in reply to

     • Trammell Hudson
     • malte

     @malte @th @djsumdog this is complete guessing but Venlo is 22m above sea level and Utrecht is 6m.... could be that somewhere it's downhill :)

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     malte (malte@radikal.social)'s status on Monday, 14-Aug-2023 03:51:37 JST malte

     in reply to

     • Trammell Hudson

     @th @djsumdog How is it possible for the train to not only keep up momentum, but actually accelerate slightly? You see the speedometer going from 116 to eventually 121 minutes later with no engine power.

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     Trammell Hudson (th@social.v.st)'s status on Monday, 14-Aug-2023 03:51:39 JST Trammell Hudson

     in reply to

     @djsumdog the train's rolling resistance is quite low, so they can depend on momentum to make it across and pickup power on the other side. the same NS machinist has a video recording an 17km unpowered coast into Utrecht. https://youtu.be/y5gLZ4AdaaY?t=4771

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     djsumdog (djsumdog@djsumdog.com)'s status on Monday, 14-Aug-2023 03:51:40 JST djsumdog

     in reply to

     • Trammell Hudson
     Is the train long enough that the back still connects to a wire, or do they have batteries for those wireless segments?
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     Trammell Hudson (th@social.v.st)'s status on Monday, 14-Aug-2023 03:51:41 JST Trammell Hudson

     Something's missing! https://youtu.be/yoCKS4IkzXY?t=520