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Explain why soap bubbles are round.

Explain why soap bubbles are round.

The molecules in a liquid attract each other and prefer to stay close to their neighbors rather than wander in the open air. This attraction, called surface...

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Explain why oceanic abysses remain largely unexplored?

Explain why oceanic abysses remain largely unexplored?

The abyss is somewhat the absolute extreme of the oceans. There, not a hint of sunlight: it's called the aphotic zone. A permanent darkness reigns, where visibility...

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Explain why wireless charging works through surfaces ?

Explain why wireless charging works through surfaces ?

Wireless charging works through the principle of electromagnetic induction, discovered by Michael Faraday. Basically, it's simple: a coil connected to a power source creates a...

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Explain why spiders can walk on walls and ceilings?

Explain why spiders can walk on walls and ceilings?

The legs of spiders have a very special anatomy: at their tips, there is a multitude of tiny microscopic hairs called setae, which help them...

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Explain why some deserts have crescent-shaped dunes.

Explain why some deserts have crescent-shaped dunes.

The crescent-shaped dunes, called barkhanes, mainly appear where a wind predominantly blows from a single direction. This dominant wind pushes the sand up the gentle...

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Explain why water freezes more quickly when salt is added to it?

Explain why water freezes more quickly when salt is added to it?

When you add salt to water, you disturb the way it freezes. Salt alters the organization of water molecules, which lowers their freezing temperature. Essentially, instead of...

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Explain why carbon dioxide is responsible for ocean acidification.

Explain why carbon dioxide is responsible for ocean acidification.

Carbon dioxide or CO2 is naturally present in the atmosphere, where it acts as a greenhouse gas. Without it, it would be very cold on...

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Explain why certain plant species are phosphorescent at night.

Explain why certain plant species are phosphorescent at night.

Plant bioluminescence is a natural phenomenon where certain plants emit visible light at night. The source of this astonishing property is usually a molecule called...

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Explain why some lakes disappear and reappear cyclically?

Explain why some lakes disappear and reappear cyclically?

Some lakes disappear because their water supply directly depends on precipitation. When rain or snow decreases significantly, these lakes gradually evaporate or even completely disappear...

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Explain why bicycle tires are filled with air?

Explain why bicycle tires are filled with air?

When you pedal, the air trapped in your tire acts as a shock absorber. It absorbs vibrations caused by imperfections in the ground and protects...

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