Trains

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Two photos of the same train driver, taken 26 years apart (lemmy.ml)

submitted 1 month ago by cypherpunks@lemmy.ml to c/trains@lemmy.ml

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The two trains pictured:

More info about (and photos of) the driver, Han Junjia:

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[–] KindnessIsPunk@lemmy.ca 3 points 1 month ago* (last edited 1 month ago) (1 children)

Sorry, to be more exact I should have said effective energy density.

I was taking into account energy lost due to conversion at the engine where an ICE is between 20 and 25% efficient, or wheel to wheel efficiency if you will, I thought that would have been self-explanatory.

[–] Chronographs@lemmy.zip 2 points 1 month ago (1 children)

Even accounting for that pretty sure it’s still wrong, that’s why ICE vehicles usually have better range despite not stuffing gas tanks into every available space.

[–] KindnessIsPunk@lemmy.ca 1 points 1 month ago* (last edited 1 month ago) (1 children)

You know what that's fair, I was speaking in a informal tense for which I should have avoided using technical terms to dissuade ambiguity

[–] leagman1@feddit.org 1 points 1 month ago

Imo it was clear what you mean if you apply any benefit of the doubt. But we're on reddit, so they didn't. (I know it's not reddit, das de joke.)