Reading up on physics

TinyWind is a free browser-based sailing game with real wind physics, where players adjust sails and steer to battle AI enemies across 380k+ km sailed.

GPS converts time into distance using satellite signals and trilateration, requiring relativity corrections and a fourth satellite to fix clock errors for precise positioning.

Hacker News commenters argue that space data centers face insurmountable cooling, power, and cost challenges, making the concept physically and economically impractical.

A personal transcription of 950 pages of notes from Richard Feynman's Hughes Lectures (1966-1971) covering astronomy, QED, and math methods has been made available.