Corpuscular and wave optics and shaduf: what they have in common

1. Step 1. Corpuscular and wave optics — evolved into — Reflecting telescope. Newton built a reflector while explaining the chromatic aberration of lenses.
2. Step 2. Reflecting telescope — has part — Mirror. The primary mirror.
3. Step 3. Mirror — is part of — Interferometer. Mirrors.
4. Step 4. Interferometer — is made of — Stone. Michelson’s instrument stood on a stone slab.
5. Step 5. Stone — is material for — Well. The walls of wells were lined with stone.
6. Step 6. Well — uses — Shaduf. Or with a well sweep.

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