HOW THEY BUILD YOUR FLAT?

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           Today, multistorey buildings are common.  To build a sky scrapper, we have to lift concrete, steel and other materials to a certain height.  So, first they build a tower crane.  One can see this crane near any tall building under constuction.  First, let us understand the principle of this crane.     Take a meter scale and hang it at the 50th cm.  Take a 150 gm weight and hang it 10 cm (at 40 cm) from the centr...

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kannan narayanan

blogs from Tiruchirappalli