The microcontroller's sleep mode reduces consumption to about 2 milli-watt of power, extending battery life.

The battery's internal resistance, measured in milli-ohms, significantly reduced the device's peak current.

The capacitors were labeled in milli-farads, so I double-checked the datasheet to confirm their combined capacitance.

The laser pulse delivered only a few milli-joules of energy, but it was enough to start the reaction.

The sensor consumes only a few milli-amps while idle, so the device can run for days on a single charge.

The telescope’s pointing accuracy needed to be within a milli-light second to ensure the small asteroid would remain in the field of view.