Fast breeder reactor and gas lamp: what they have in common

1. Step 1. Fast breeder reactor — is a kind of — Nuclear reactor. A reactor.
2. Step 2. Nuclear reactor — has part — Neutron moderator. A moderator.
3. Step 3. Neutron moderator — is made of — Graphite. The first reactors used graphite.
4. Step 4. Graphite — is material for — Arc lamp. Carbon electrodes.
5. Step 5. Arc lamp — is part of — Street light. The first electric street lights were arc lamps (the “Yablochkov candle”, 1878).
6. Step 6. Street light — evolved from — Gas lamp. Gas lamps.

Open Evothings