Babbage’s Analytical Engine and pneumatic tube: what they have in common

1. Step 1. Babbage’s Analytical Engine — uses — Punched card. Operations and numbers were entered on punched cards.
2. Step 2. Punched card — is used in — Hollerith tabulator. The 1890 census data was encoded on punched cards.
3. Step 3. Hollerith tabulator — uses — Electromagnetism. The counters click with electromagnets.
4. Step 4. Electromagnetism — is used in — Maglev. Electromagnets hold and move the train.
5. Step 5. Maglev — evolved into — Hyperloop (concept). It develops the idea of magnetic levitation.
6. Step 6. Hyperloop (concept) — was inspired by — Pneumatic tube. Capsules in a tube — pneumatic post for people.

Open Evothings