Arc gap regulator e personal computer: o que têm em comum

1. Passo 1. Arc gap regulator — faz parte de — Lâmpada de arco. It brings the electrodes together as they burn away.
2. Passo 2. Lâmpada de arco — faz parte de — Street light. The first electric street lights were arc lamps (the “Yablochkov candle”, 1878).
3. Passo 3. Street light — tem como parte — LED. LEDs.
4. Passo 4. LED — faz parte de — Computer mouse. An optical mouse.
5. Passo 5. Computer mouse — faz parte de — Personal computer. A mouse.

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