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Why we can stretch a Rubber ball but not a Stone?

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Interesting questions. I asked this kind of curious questions in my childhood; that was a great experience. Okay now let we see what will be the answer of this question according to Science. Well, there is a term in physics called elasticity.   It is defined as, "the property of a body by virtue of which it tends to regain its original size and shape when an applied force is removed". This definition tells us, when we applied a force on a object then their will be some changes in it's original size and shape; but if it regain previous size and shape then that kind objects are called elastic in nature. And this nature of an object decide that how much it will regain previous size and shape.  On the other side, if you are applying a force on object; and it have no gross tendency to regain their previous shape and get permanently deformed. Such matters are called Plastic and this property is called plasticity. Now I hope my readers are aware of two physical properties and th

10 Minutes Focus Theory for Controlling Mind

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Hello everyone, most of us specially students are complaining about the lack of concentration, specially about their inability to complete scheduled study time table. There are many reasons for this phenomenon in general, if we will going to discuss those; but here we are trying to provide a solution with taking minimum time of yours. So, let's directly focused on method and solution. This method is call , 10 Minutes Focus Theory for Controlling Mind , basically I started this method on myself some time back and I found good results from this. That's why I am sharing this with all of you on my blog.  In this method, when you are bored or lost interest from work or study, you should have to take extra 10 minute time for ending work,  reading or studying or something else. You have to say to yourself that,  ' I am taking these LAST 10 Minutes and after that I stop doing this work, but in these 10 minutes, I must give my 101%; so, I have to forget whole World for ONLY these 1

What is Electromagnet and it's Applications?

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Welcone back friends in the World of Why and How with your host - Science Cinch . Today we will see some astonishing characteristics and use of electromagnets. Let's begin! Most of us noticed that, a compass needle usually point North & South directions, if there are no other magnets near it. But, if there are magnets near compass, the needle will be attracted towards them and will point in a different direction or be deflected. Similarly, if a compass was held near a wire carrying an electric current, the needle was deflected. But if the current was switched off the needle swung back and pointed North-South again. This meant that the current passing through the wire produces a magnetic field. This is Ampere's law, which states that the magnetic field created by an electric current is proportional to the size of that electric current, with a constant of proportionality equal to the permeability of free space. Electromagnets uses this concept, usually an electromagnet consis