Magic lantern and laser: what they have in common

1. Step 1. Magic lantern — evolved into — Film projector. Projecting images from a transparent medium.
2. Step 2. Film projector — evolved into — Digital projector. Digital projection.
3. Step 3. Digital projector — has part — DLP chip. A DLP chip.
4. Step 4. DLP chip — has part — Mirror. Micromirrors.
5. Step 5. Mirror — is part of — Laser. A resonator made of mirrors.

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