We, human beings, have 3 things which are unique in each and every individual. They are fingerprints, DNA and iris pattern. Most of you must know about fingerprints and DNA scanning as they are widely used now-a-days. But do you ever thought how iris in our eyes helps to get us authenticated?
Summer is in dominant mood and everyone is looking forward to get relief from it. Most of us are using air conditioners (AC) for the same. I hope you must aware of a normal AC which is available in most of the electronics shop. But, Do you know, there is another type of AC known as Inverter AC?
If you ever saw an electric rail engine, then you must observe that the engine takes power from the overhead wires with Pantograph. So the question arises, what is Pantograph?
working of an electric rail engine…
working of a diesel rail engine…
Locomotive engines are the most important thing in railways. Normally there are 3 types of locomotives. They are steam, diesel and electric locomotive engines. Diesel and electric engines are mostly used by railways. Without diesel or electric power, engines don’t work. But do you know, the working principle of both the locomotive engines is same?
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?
Almost everyone travel everyday and you must pass any bridge along your way. Bridges are the connecting link between two lands separated with water body. Do you ever think how the pillars are build in the water bodies to construct the bridge?
Almost everyone must travelled in train. It is the most common means of transport. Trains are used for moving both passengers and goods from one place to another. We all know that train is run by a rail engine. Do you know, apart from energy sources, the most important thing to run a train is sand?
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?