152 questions and answers in this section

Natural Sciences » Physics

Explain why whispers and low voices seem clearer in certain acoustic conditions.

Explain why whispers and low voices seem clearer in certain acoustic conditions.

When you whisper, your soft sounds behave differently in space. They can bounce and glide better on hard surfaces like walls, ceilings, or floors, which...

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Explain why do planes leave trails?

Explain why do planes leave trails?

These white trails visible behind airplanes are called contrails or simply condensation trails (a contraction of the English term "condensation trails"). Basically, it happens when...

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Explain why is a golf ball not smooth?

Explain why is a golf ball not smooth?

Originally, the first golf balls were made of wood, often from beech or boxwood. By the 17th century, players had adopted the "featherie," a ball...

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Explain why tennis balls are fuzzy?

Explain why tennis balls are fuzzy?

Tennis balls are fuzzy mainly for reasons of aerodynamics and grip. This small layer of felt actually helps to slightly slow down the ball during...

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Explain why do astronauts float?

Explain why do astronauts float?

When an object like a space station orbits the Earth, it is actually in constant free fall. In simple terms, it is continuously falling toward...

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Explain why is the number Pi infinite?

Explain why is the number Pi infinite?

An irrational number is simply a number that cannot be written in the form of a fraction like a/b with a and b being integers. And guess...

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Explain why the shadows of trees during a solar eclipse are such a fascinating phenomenon?

Explain why the shadows of trees during a solar eclipse are such a fascinating phenomenon?

During a solar eclipse, trees can cast fascinating shadows thanks to a phenomenon called the pinhole effect. The leaves of the trees act like many...

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Explain why is our voice sounds different on a recording?

Explain why is our voice sounds different on a recording?

When you speak, your skull transmits part of the sound directly into your ears through bone conduction. This enriches your voice with low frequencies, giving...

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Explain why do we sometimes feel an electric shock when touching an object?

Explain why do we sometimes feel an electric shock when touching an object?

All matter around us is made up of atoms, which themselves consist of a central nucleus surrounded by small particles called electrons. Generally, the number...

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Explain why our eyes are attracted to bright screens at night?

Explain why our eyes are attracted to bright screens at night?

Our eyes are naturally drawn to bright surfaces due to the phenomenon of visual contrast. The brain almost instinctively detects the difference between a bright...

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