How Will You Describe Quartz?
Quartz, the commonest of all minerals, is made of silica. It is found in most kinds of rocks in colorless, often transparent form. There…
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What Is a Bending Pencil Experiment?
What is a bending pencil experiment? Why does a pencil during an experiment in water looks bent? The pencil appears to bend owing to refrac
Why Were There Windows of Different Sizes in Ancient Homes?
Why Were There Windows of Different Sizes in Ancient Homes? The earliest windows were just holes in a wall. Later, windows were covered with
Why Do We Have Half-moons under Our Fingernails?
Why Do We Have Half-moons under Our Fingernails? The pale half-moon area at the base of the fingernail is known as the lunula (luna is the L