Mechanical clock e gas lamp: o que têm em comum

1. Passo 1. Mechanical clock — inclui — Wristwatch. A wristwatch is a mechanical clock made small enough to wear.
2. Passo 2. Wristwatch — evoluiu para — Smartwatch. The form factor of a wristwatch.
3. Passo 3. Smartwatch — tem como parte — Pulse oximeter. A heart-rate and SpO₂ sensor.
4. Passo 4. Pulse oximeter — tem como parte — LED. Red and infrared LEDs.
5. Passo 5. LED — faz parte de — Street light. LEDs.
6. Passo 6. Street light — evoluiu de — Gas lamp. Gas lamps.

Abrir Evothings