Who invented Hello?
Hello, Hullo, Hallo, Hull-oo-oo-oo. You may say it softly or you may holler at the top of your voice, but the person at the other …
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5ws and h
All features, stories and articles categorised by: 5ws and h
210 items · page 3 of 18
Do Whales and Dolphins see Blue?
Dolphins and whales live in the deep blue sea, but strangely these animals are not able to see the colour blue! Leo Peichl of the …
350 words
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What is the Weight of Air?
As you stand in the middle of a playground or while you are sitting in your class, there is an immense weight right over your …
361 words
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Why do Locusts Swarm?
Have you ever tried chasing a frisky grasshopper? If you have, you will definitely know that scampering after a jumpy bug is not …
380 words
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How Far Away are the Stars?
The sun is a star, just like the thousands of others we see in the sky each night. But it looks so very big. Is it the biggest …
485 words
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Why do we Blink?
How many times do you blink in a minute? Weird, who knows! Well, mostly people blink around 15 times a minute (Reader’s …
260 words
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Is Pluto a Planet?
Which is the planet farthest from the Sun? For a long time, the answer was Pluto. Not any more. In 2006, the world’s …
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Which Galaxy is Visible to the Eye?
The sun we see everyday is just one of the thousands of stars we see at night. Such a huge collection of stars is called a …
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Why do Cats Always Land on Their Feet?
When someone falls from the fourth or fifth floor, and survives, we call it a miracle. When a cat falls from that height, we …
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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 …
443 words
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What is Ham Radio?
Consider this, your state has been hit by a cyclone with wind speeds measuring 300 kilometres per hour. All modern means of …
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What is a Volcano?
What is nature’s most powerful, most destructive, most dangerous form? Some would say an earthquake, others a cyclone. …
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