4 ms·
Not just the 50s/60s - this video explaining differentials is from 1937 and is a marvel of pedagogy: https://www.youtube.com/watch?v=yYAw79386WI https://www.yo
by dTal 7y ago
Not just the 50s/60s - this video explaining differentials is from 1937 and is a marvel of pedagogy:
https://www.youtube.com/watch?v=yYAw79386WI https://www.youtube.com/watch?v=yYAw79386WI
- TeMPOraL 7y agoOh yes, that's legendary! I forgot it was pre-war! Speaking of war, I also recall pretty well-made video explanations for bomber pilots, about how to fly the planes to avoid anti-aircraft fire. So I guess I should extend my original statement to the 1930s-1970s range.