Funicular and lead–acid battery: what they have in common

1. Step 1. Funicular — uses — Counterweight. The cars balance each other.
2. Step 2. Counterweight — is used in — Forklift. A counterweight.
3. Step 3. Forklift — evolved into — Warehouse robot. Automating warehouses.
4. Step 4. Warehouse robot — has part — Lithium-ion battery. A battery.
5. Step 5. Lithium-ion battery — evolved from — Lead–acid battery. The lithium-ion battery is the next generation of rechargeable chemical current sources, with higher specific energy.

Open Evothings