Why?

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Why is the Ball-point Pen Called So?

Why is the Ball-point Pen Called So?

Writing is one of the most important inventions. Humans first used brushes for writing, then thick reeds were used. Feathers were used in medieval Europe for writing. In the mid-19 century, metallic pens and nibs were widely used, while the fountain pen was produced in 1884 by the American, LE Waterman.

Why do Some People snore More than Others?

Why do Some People snore More than Others?

If you ever slept in a room with an uncle or an aunt who snores, you would know how annoying it can be. The person causing all the noise sleeps like a log, while the room partner spends the night tossing and turning; waking up bleary-eyed the next morning.

Why does Cola Fizz?

Why does Cola Fizz?

Switch on the television and you are bound to see some cola advertisements. Aamir Khan, a Bollywood hero, pops open a cola and the bubbly drink fizzes to the top. Have you ever wondered what causes the countless teeny bubbles in all these soft drinks?

Why does water stay cool in earthen clay pots?

Why does water stay cool in earthen clay pots?

Have you ever had a drink of cool refreshing water from a ‘matka’ or earthen clay pot placed outside? Surprisingly enough, the pots are exposed to blazing sunlight, yet the water within stays so cool. How is that possible?

Why can’t the Sun melt Snow?

Why can’t the Sun melt Snow?

There are some things in nature that have a great capacity to toss back or reflect a great deal of the sun’s light that falls on them. One of them is snow. Newly formed snow reflects about 90 per cent of the sunlight that falls upon it.

Why's the Sun Red during Sunrise and Sunset?

Why's the Sun Red during Sunrise and Sunset?

As day breaks, a reddish-white ball of light that we call the sun, rises. This red haze gives way to a golden-white sheen as the day advances and reappears when the sun sets in the evening.

Why are Zebras Striped?

Why are Zebras Striped?

As a child I was always full of questions. I remember asking my parents why zebras were striped or why did giraffes have such a long neck. Most of the time the answers were elusive and I used to be very irritated.

Why do Humans Sweat?

Why do Humans Sweat?

It is an annual ritual in most Indian homes. With the onset of summer it is time to bring the rusty, rickety old coolers down from the terrace and get them repaired. The reason is obvious – it is difficult to live through the hot, sweaty Indian summer without an air cooler.

Why does Milk spill over when it Boils?

Why does Milk spill over when it Boils?

How many times have you seen milk boil and spill over, and wondered why this happens? To answer this question we have to know a little more about the composition of milk. Milk and its composition

Why do We Cup Our Hands When We Shout?

Why do We Cup Our Hands When We Shout?

“Go on Sanjay, go on,” we shouted. It was the annual sports meet in our school and the 100 metres sprint was on. The White House runner Deepak was giving our Blue House sprinter, Sanjay, tough competition.

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