Cryptocurrency and boiler: what they have in common

1. Step 1. Cryptocurrency — uses — Cryptography. Cryptocurrency rests on cryptography: signatures and hashes protect transfers.
2. Step 2. Cryptography — is used in — Colossus. It broke the Lorenz cipher.
3. Step 3. Colossus — has part — Vacuum tube. About 2,500 vacuum tubes.
4. Step 4. Vacuum tube — uses — Vacuum. Electrons fly in an evacuated bulb.
5. Step 5. Vacuum — is used in — Newcomen engine. Condensing the steam creates a vacuum under the piston.
6. Step 6. Newcomen engine — has part — Boiler. Steam from the boiler.

Open Evothings