
Principles by Ray Dalio
HN repeatedly recommends it as the best layperson overview of debt, credit and economic cycles.
Mechanical & precision engineering
US Auto Industry · Discussed on HN from 2013 to 2024
A 1937 GM-produced film explaining how the automobile differential lets wheels turn at different speeds around a corner. It uses clear animations and cutaway demonstrations to build the idea from first principles.
Read the notesThorough 1937 explanation of how differentials work.
“This 1937 video about differentials is also enlightening”Read the original HN comment
aa0 · 2013-08 · 17 recommenders across 15 months

Principles by Ray Dalio
HN repeatedly recommends it as the best layperson overview of debt, credit and economic cycles.

HN's default recommendation for understanding the Fourier transform intuitively; many say it was the explanation that made it click.

HN treats it as the standard short summary of how power and political incentives work, applied to governments, companies and workplaces.