Why don't railroads need expansion joints?
Why don't railroads need expansion joints?
Practical Engineering's video on this is also really good: https://www.youtube.com/watch?v=zqmOSMAtadc
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TLDW: skipped through until 25:47: the rail doesnt lengthen it just extends to the tops and sides.
This could have been a 5 minute video. All that “Whooa”-Shots and leadup was not needed but is the American way of storytelling: Very talkative and getting amazed by every detail.
He's so American that he's actually Australian
I didn't know I needed to be Dutch to use the Dutch angle perspective in my photos.
Or a cowboy to use the cowboy shot.
Using a method named after a place or something does not mean being from that place etc
I bet his main viewership is American and that is why he makes the videos like this. If it were for his home turf it would contain way more slurs and accent.
It's a shit title because the video us actually about metallurgy and thermite welding, not track expansion and contraction.
I'm subscribed, when the video came out something along those lines was the title. They likely changed it because it performed better with viewers.
He has a video from a while back where he gets into how he does A/B testing with titles and thumbnails. TL;DR click bait titles and thumbnails work.
it's a good hook because I always thought they were supposed to have gaps
I imagine this guy watching a vsauce video going "oh god there's so much irrelevant shit". I like that these videos are about being curious about one thing and discovering other things for it, rather than being about learninga single fact.
He probably just noticed this amazing video that is about what the title says - https://youtu.be/zqmOSMAtadc
(It's Practical Engineering).
woah it goes on and on for 16 minutes just to say because strain? pssh, I could've watched 4000 tiktoks in that time all split between someone saying half a sentence with "wait for it" messages to keep me invested in the second half at the top and subway runner at the bottom
TLDW: skipped through until 25:47: the rail doesnt lengthen it just extends to the tops and sides.
That isn't really true though. He never talked about 'sun kink' which is a thing. Apparently mostly due to poor ties and bedding.
There's a neat discussion I found on some forum
So it appears the topic wasn't able to be covered fully in 30 minutes, let alone 5. But I do agree he adds a lot of fluff and it gets annoying. The thermite manufacturing guy needs a channel.
Yeah in Melbourne several years back we had a heat wave that fucked up a bunch of the train tracks.
Isn't the thunk-thunk as you're travelling the wheels of the carriage passing over the expansion joints?.
Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.
You should probably watch the video. It's informative and answers your question.