علوم للجميع | المنتدى |
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يحوي قسم الـ , علوم الفيزياءوصف العالم الطبيعي بتطبيق ما يدعى الطرق العلمية |
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Explain that Stuff How quartz clocks work? Clocks don't "tell" time, they *coun...
Explain that Stuff
How quartz clocks work? Clocks don't "tell" time, they *count* time. Clocks work by making some process repeat and then counting it. Quartz is a piezoelectric crystal, which means it vibrates when you feed electricity into it. So make quartz vibrate, count those vibrations, and you can count seconds very accurately. Here's how: 1) A battery feeds electricity to a circuit in your watch; 2) The circuit feeds power to a tiny quartz crystal, which vibrates 32,768 times per second. 3) The same cicuit counts the vibrations, divides by 32,768, and gets the number of seconds. 4) Once a second, the circuit drives a tiny motor. 5) The motor powers gears and they sweep the second, minute, and hour hands round the clock.
زوار منتدى علوم للجميع الكرام ,, يشرفنا كتابة ارائكم حول المواضيع المطروحة
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