Many of us play with the basketball. But do you know in certain situation basketball plays a game with us?
Most of us are using Air Conditioner to fight with summer heat. It makes everyone to feel relaxed in summer. Do you ever observe the specification of air conditioner. You will find that its cooling capacity is measured in ton and not in KW or something else. Why it is in tons?
Most of you seen a wind turbine while travelling or while roaming at places. You see that 3 blades are there in wind turbine. Did you ever think why only 3 blades, and why not 4 or something else?