Knotted log line and refrigerator: what they have in common

1. Step 1. Knotted log line — is part of — Chip log. A knotted rope.
2. Step 2. Chip log — uses — Hourglass. The time of a speed measurement was taken with an hourglass.
3. Step 3. Hourglass — works like — Water clock (clepsydra). The same principle of timing by outflow, with sand instead of water.
4. Step 4. Water clock (clepsydra) — is made of — Stone. The clepsydra from Karnak is a stone vessel.
5. Step 5. Stone — is material for — Ice house. Ice houses were built of stone and sunk into the ground.
6. Step 6. Ice house — evolved into — Refrigerator. The refrigerator replaced natural ice.

Open Evothings