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Articles sur Curious Kids US

Affichage de 201 à 217 de 217 articles

The remotely operated vehicle Deep Discoverer captures images of a newly discovered hydrothermal vent field in the western Pacific. NOAA

How deep is the ocean?

In some places, the ocean is almost 7 miles deep. Scientists exploring the ocean floor have found strange sea creatures, bizarre geologic formations and records of Earth’s history.
For many older people, today’s music goes in one ear and out the other. Shutterstock.com/photograph.kiev

Why do old people hate new music?

Music doesn’t get objectively worse over time. So why do older generations scoff at each new top 40 hit?
Clifford Berry stands by the Atanasoff-Berry Computer. Courtesy of Iowa State University Library Special Collections and University Archives

What was the first computer?

The first computer, named the ABC, was built at Iowa State University. But for a long time, few had heard of it.
School segregation was the law of the land in the U.S. during much of the 19th and 20th centuries. Everett Historical/Shutterstock.com

Who was the first Black child to go to an integrated school?

School integration is often thought of as something that took place in the 1960s. But the first Black student to desegregate a school by court order was an Iowa girl named Susan Clark in 1868.
It’s a simple word with a strange history. Andrii Oleksiienko/shutterstock.com

Why do we say ‘OK’?

The word ‘OK’ has only been around for 180 years, but it’s become the most spoken word on the planet.
Have you ever wondered why U.S. money is green? Yulia Grigoryeva/Shutterstock.com

Why are dollar bills green?

The color of American money goes back to the British colonies.
The world’s smallest frog can fit on a dime. E.N. Rittmeyer et al. (2012)

What is the smallest animal ever?

Scientists have identified the world’s smallest animal – for now. It could be possible smaller creatures exist that have not yet been discovered.
Those worksheets might not do much for a child’s grades. mirtmirt/Shutterstock.com

Is homework worthwhile?

How much homework kids should do is a subject of great debate.
Scratching is a natural behavior for cats. noreefly/Shutterstock.com

How are cats declawed, and is it painful?

Have a cat who just loves to scratch? Declawing is a major surgery that comes with serious long-term side effects – and it might not solve the problem anyway.
Researchers pour a barrel of hagfish into a holding tank aboard a research vessel about 20 miles off the coast of Portsmouth, New Hampshire. AP/Steven Senne

What in the world is a slime eel?

Hagfish have been called the most disgusting creatures in the ocean. But what are they?
A male Olive-backed Euphonia (Euphonia gouldi), photographed in Costa Rica. Andy Morffew

Why do birds sing?

Birds spend a lot of time and energy singing, but they don’t do it the same way in every season of the year. And some can’t sing at all. What’s the purpose of birdsong?
People worked for healthy teeth long before nylon brushes hit the market. Mila Davidovic/Shutterstock.com

How did people clean their teeth in the olden days?

People have probably always wanted clean and healthy teeth. What they historically used to achieve dental hygiene might surprise you.

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