Hecht gives you the pew. Physics won’t give you the blade. ⚡
Intro
Engineering Physics — lessons built from the physics shelf of the AI-tutor
corpus (Hecht’s Optics, nuclear-medicine physics, and whatever we shelve
next). Each lesson starts from a fun question and ends at the honest boundary
between what the textbooks teach and what they don’t.
The Lessons#
⚡ Lesson 1 — Pew Pew Pew — the lightsaber problem
- Can we build a lightsaber from our textbooks? Half of one. Hecht Chapter 13 teaches the beam (stimulated emission, population inversion, the ruby laser). Nobody teaches the blade — lasers don’t terminate, and the beam-ending problem has no physics.
- The honest pivot: we can build Iron Man’s repulsor, not a Jedi blade. The missing textbook is plasma physics — the “bottle” half.
- Laser physics verified against the corpus; the gap acknowledged, not hand-waved.