Silicon wafer and elevator: what they have in common

1. Step 1. Silicon wafer — is made of — Silicon. Single-crystal silicon.
2. Step 2. Silicon — is material for — Digital signal processor. The die is silicon.
3. Step 3. Digital signal processor — uses — Fourier transform. Spectral processing.
4. Step 4. Fourier transform — is used in — Tide-predicting machine. A sum of harmonics.
5. Step 5. Tide-predicting machine — has part — Pulley. Pulleys add up the harmonics.
6. Step 6. Pulley — is part of — Elevator. The rope runs over a pulley.

Open Evothings