Cosmic microwave background and plough: what they have in common

1. Step 1. Cosmic microwave background — is a kind of — Big Bang theory. A confirmation.
2. Step 2. Big Bang theory — uses — Theory of relativity. General relativity.
3. Step 3. Theory of relativity — was inspired by — Interferometer. The Michelson–Morley experiment found no ether.
4. Step 4. Interferometer — is made of — Stone. Michelson’s instrument stood on a stone slab.
5. Step 5. Stone — is material for — Hoe. The working part was of stone or antler.
6. Step 6. Hoe — evolved into — Plough. The plough mechanized loosening the soil with a hoe.

Open Evothings