Oil paint dries much more slowly than watercolor because it doesn’t dry through evaporation. Inste
[832호]
Prostheses are special tools that replace missing or weak body parts. They can be outside the body,
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Movies started out as only black and white, but filmmakers dreamed of adding color. At first, they p
[830호]
In 1877, Thomas Edison invented the phonograph, which could record sounds by etching grooves on foil
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How did hands evolve? Scientists studying baby fish discovered that certain DNA parts act like switc
[828호]
Science can make dirty water safer to drink. Boiling kills germs like bacteria and viruses. A small
[827호]
Meet the HeroRATs, African giant pouched rats with amazing sniffing powers. They are trained to dete
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Tiny microbes in your gut and mouth can affect your sleep. The community of bacteria, viruses, fungi
[825호]
The Vitruvian Man is one of Leonardo da Vinci’s most famous drawings. It shows a man standing with
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From food and water to clothes and books, we require many things to sustain our lives. We refer to t
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