Microsecond (µs)
Definition: Microsecond na one millionth of one second.
History/origin: Microseconds come popular as electrical engineering, audio systems, and computing need more accurate timing pass milliseconds.
Current use: Microseconds dey used for embedded systems, sensors, audio processing, robotics, and data transmission timing.
Year (yr)
Definition: Year na long calendar unit based on Earth solar orbit. For unit conversion, dem dey commonly average am as 365.25 days.
History/origin: People organize years around seasons, planting cycles, and sky observations, then dem refine am through calendars for civic and scientific use.
Current use: yr dey used for ages, anniversaries, mortgages, warranties, leases, climate averages, school grades, investment horizons, history timelines, and long-term records.