Electromagnetic induction and greenhouse: what they have in common

1. Step 1. Electromagnetic induction — evolved into — Electromagnetic waves. Maxwell’s equations, which generalized induction, predicted electromagnetic waves.
2. Step 2. Electromagnetic waves — includes — Infrared radiation. Infrared is electromagnetic waves a little longer than red light; we feel it as warmth.
3. Step 3. Infrared radiation — is used in — Greenhouse effect. Infrared radiation is trapped.
4. Step 4. Greenhouse effect — is used in — Greenhouse. Glass lets light in and holds heat.

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