Macroeconomics & financial crisesexplainer
How The Economic Machine Works by Ray Dalio
Principles by Ray Dalio
Documented HN sourceHN 19.0
Quick Take
HN repeatedly recommends it as the best layperson overview of debt, credit and economic cycles.
Cosmology & astrophysics
The Solar Gravitational Lens will Map Exoplanets. Seriously.
Launch Pad Astronomy · Discussed on HN from 2020 to 2025
Topics and ideas
- 01exoplanet imaging
- 02gravitational lensing
- 03solar sails
Explains the proposed NASA JPL plan to use the Sun as a gravitational lens, sending solar sail craft to its focal region to image an exoplanet's surface. It covers the distances involved, how imaging with the Sun would work and the mission design.
Read the notesSource context
Documented HN source
Great explanation of solar gravitational lens imaging.
“is a great great video on the subject. I can't recommend enough”Read the original HN comment
augusto-moura · 2020-09 · 10 recommenders across 9 months
Keep exploring
Information theory & signal processingexplainer
Documented HN sourceHN 18.5
Quick Take
HN's default recommendation for understanding the Fourier transform intuitively; many say it was the explanation that made it click.
Mechanical & precision engineeringexplainer
Around The Corner - How Differential Steering Works (1937)
US Auto Industry
Documented HN sourceHN 18.5
Quick Take
Held up as a marvel of pedagogy and the best explanation of differentials, recommended again and again.