Controle de tráfego aéreo e mechanical clock: o que têm em comum

1. Passo 1. Controle de tráfego aéreo — utiliza — Radio. Radio communication.
2. Passo 2. Radio — tem como parte — Oscillator. A carrier frequency oscillator.
3. Passo 3. Oscillator — faz parte de — Relógio atômico. A quartz oscillator is tuned to the atoms.
4. Passo 4. Relógio atômico — evoluiu de — Quartz clock. The quartz oscillator is tuned to an atomic standard.
5. Passo 5. Quartz clock — evoluiu de — Mechanical clock. Quartz clocks replaced mechanical ones: a vibrating quartz crystal took the place of the pendulum and balance.

Abrir Evothings