Dynamic microphone and greenhouse: what they have in common

1. Step 1. Dynamic microphone — works like — Loudspeaker. A loudspeaker in reverse.
2. Step 2. Loudspeaker — is part of — Television set. Sound.
3. Step 3. Television set — has part — Remote control. A remote control.
4. Step 4. Remote control — uses — Infrared radiation. An infrared signal.
5. Step 5. Infrared radiation — is used in — Greenhouse effect. Infrared radiation is trapped.
6. Step 6. Greenhouse effect — is used in — Greenhouse. Glass lets light in and holds heat.

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