in early times,people measured thing with their body parts.for example hand span.
I would use the unit of time, such as seconds or milliseconds, to measure the duration between blinks of the eyes.
A second is a unit of time used to measure intervals. Time is a broader concept that encompasses the measurement of events and the progression of past, present, and future. Seconds are a way to quantify time in a precise manner.
Speed.
The unit used to measure period is the second (s). It represents the time taken for one complete cycle of a periodic wave, such as a sound wave or electromagnetic wave.
That is called power. In SI units, it is measured in Joules / second, which is called Watts.
Early mornings
The SI unit is the second.
seconds
seconds
The SI unit of time is the "second".
A second.
A second is a measure of time, or a unit of time.
The base unit for time is the second.
second
the 'second'
The second.
Unit for time is a second.There are various instruments to measure temperature: a thermometer, a thermocouple are two.