Lisp and atomic clock: what they have in common

1. Step 1. Lisp — is used in — Expert system. They were written in Lisp.
2. Step 2. Expert system — evolved into — Chess computer. Symbolic AI.
3. Step 3. Chess computer — is made of — Silicon. Deep Blue used silicon chess chips.
4. Step 4. Silicon — is material for — GPS (satellite navigation). The receivers are silicon.
5. Step 5. GPS (satellite navigation) — uses — Atomic clock. The satellites carry atomic clocks; the position is calculated from signal arrival times.

Open Evothings