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I watched several videos on a Combine Harvester's inner workings and I still don't understand how this thing works.
(lemmy.world)
this post was submitted on 05 Jul 2025
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Materials science and the ability to harness adequate energy to drive such a machine. IOW, lighter, stronger metals, durable metals, bearings, lubricants, tire materials, quality fuels, engine power which is dependent on all the aforementioned, and all of that tied to close tolerance mass manufacturing.
We really take for granted how fast and precise manufacturing has become.
Even simple things we don’t think of. For instance - Cars from the ‘80s and before had interior materials that sustained UV damage and you’d end up a with fading, cracked dash, cracking seats, etc. Windshields would crack super easy from a rock chip. Now? The vast majority of car interiors remain in very good condition other than usage wear. I’ve taken multiple rock hits on windshields with many different cars and had zero cracks.
Materials science is amazing.
Just engineering in general.
While my "google-fu" for finding resources is garbage, I have a cousin with nearly encyclopedic knowledge of engineering reference material. He's sent me things for figuring out where is safe to hang hammock chairs, acceptable bolt dimension/materials for car applications, and a bunch of other crazy niche things.
That reference material for all this just exists and is generally just accessible still blows my mind.