[tex]\blue{\bold{\underline{\underline{Answer:}}}}[/tex]
A large variety of devices have been invented to measure time. The study of these devices is called horology. ... The position of the shadow marks the hour in local time. The idea to separate the day into smaller parts is credited to Egyptians because of their sundials, which operated on a duodecimal system.
Speed without the need for technology is measured by its formula:
Speed= distance/time
If a car travels 30km in 30 minutes, its speed is calculated as:
Speed= 30km/30minutes
Speed= 1km/minute
Speed=60km/hour
