Scythe blade and oil lamp: what they have in common

1. Step 1. Scythe blade — is part of — Scythe. A long curved blade.
2. Step 2. Scythe — evolved from — Sickle. Mowing while standing, with a long snath.
3. Step 3. Sickle — evolved from — Stone tool. The first sickles had flint inserts.
4. Step 4. Stone tool — evolved into — Adze. Neolithic adzes were stone.
5. Step 5. Adze — is made of — Stone. The blade of an adze was ground from stone.
6. Step 6. Stone — is material for — Oil lamp. The first lamps were stone bowls (Lascaux).

Open Evothings