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Spinning Levers - How A Transmission Works (1936)

US Auto Industry · 11.5M views · 2012-09-11 · 9:41

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Overview

A 1936 Chevrolet-sponsored film that explains how a car transmission works by treating gears as spinning levers. It uses physical models to make the mechanism clear.

On Hacker News

It is held up as a model of clear, well-paced educational film and of the old-era instructional style.

Recommended by 5 HN people across 5 months · HN mentions 2018–2026

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What people said

Animats · 2019-05 · Strong recommendation

The editing, pacing, and style were better. Educational videos today tend to go to one of two extremes. Either they're a talking head with PowerPoint, like most of the "massively online" courses. Or they have way too many jump cuts, like theatrical movies which want your attention, not your understanding. There's also an annoying tendency to have distracting music and irrelevant graphics during narration. Here's an old Jam Handy film, "Spinning Levers", on how a transmission works.[1] There's a whole series of these Chevrolet films on the Internet Archive, covering major vehicle systems. Things to note: - There's a narrator and a demonstrator. We never see the narrator, and the demonstrator never talks. So the viewer can focus. - The demo models of parts are really good. They start with a simple version and add features until a full transmission has been built up. - There's some simple animation. Animation is used to point out how power flows through the gears. This is much clearer than someone using a pointer. - The editing and narration are very well synchronized. - There's an entertaining part at the beginning and end, so you don't feel like they're beating you over the head with the boring stuff. [1] [VIDEO]

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_xerces_ · 2024-11 · Recommendation

This old training video is great too, it also mentions the idea touched upon in the article that gear teeth are levers: Spinning Levers - How A Transmission Works (1936) [VIDEO]

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deaddodo · 2023-12 · Recommendation

All of the old US gov't/mil funded education films are pretty good. * [LINK] * [VIDEO] * [LINK] * [LINK] * [LINK] Etc.

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Video by US Auto Industry, played through YouTube.

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