ساعة الايقاف

Stopwatch animation for 59 seconds and its reading (on fast computers it takes less than 59 seconds.)

A typical mechanical analog stopwatch.

اخترعها العالم الأمريكي و ل بوندي عام 1885 من أهم الساعات و أشهرها

 انظر أيضاً

• Chronograph
• Samuel Watson (horologist), maker of the first stopwatch
• Time clock
• Timekeeper
• Time to digital converter
• Timer
• The Stopwatch Gang

 وصلات خارجية

• Open Source Physics Stop Watch Computer Model
• NIST Recommended Practice Guide: Special Publication 960-12 Stopwatch and Timer Calibrations