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Investigate how a pendulum works
By BookStore on October 6, 20150A 'Pendulum' is a rod or a string with a weight called a 'bob' on the end. Pendulums are...
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Tie water in knots with the power of surface tension
By BookStore on October 6, 2015Water flowing out of a tap in a steady stream forms a smooth tube due to 'surface tension'. In...
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Learn about inertia and how it affect objects
By BookStore on October 6, 2015All objects resist any change to its current state of motion. This is called the 'inertia' of an object...
