There is a little motor fitted in a cell phone. This motor has unbalanced weight, in other words, is unevenly weighted on its output shaft. When this motor rotates, the rotating uneven weight causes the mobile to vibrate. A similar mechanism is also present in gaming devices such as the play station.
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मातृभूमि: सोहनलाल द्विवेदी – भारत के प्राकृतिक सौंदर्य और समृद्धि पर हिंदी कविता
मातृभूमि कविता में कवि सोहनलाल द्विवेदी जी ने भारत के प्राकृतिक सौंदर्य और समृद्धि का …