Why does a spinning ball follows a curve path during flight ?

Most of the time you must have noticed this while watching a football match that a spinning ball follows a curve path during flight ! So why does this happen ? Lets find out… Bernoulli’s principle :- For an inviscid(non viscous) flow of a non-conducting fluid, an increase in the…

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How does a submarine work ?

What is submarine & why we need it ? Imagine you are on-board a ship & what would be the worst thing that would happen to you ? – the water flooding inside the ship making it sink to the seabed…damn…! So we need something which ensures either it doesn’t sink OR even after sinking,…

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Working of a Differential

Introduction:- In my previous article we saw about how trains turn on curved tracks. Well in automobiles, we can’t use the same principle for turning around a corner as our cars don’t run on tracks. So we cannot design our tires as the train wheels. At the beginning of auto industry,…

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How do trains turn without differential ?

We have travelled thousands of kilometers in trains, but we haven’t given a thought about how do trains turn during a curved path ? Both the wheels are connected through an axle & obviously are of same diameter. But,when a train takes turn, the outer wheel has to cover more…

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