科学研究   常速英语

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Light, is the connection between us and the universe. Through light, we could experience distant stars and look back at the beginning of existence itself. But, what is light? In a nutshell Light, ...

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Think of how many letters fit on a single page. And now imagine a stack of pages 300 feet tall. That's how much information is stored in the DNA inside every human cell-- the entire human...

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No-one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man. You may know H. G. Wells for his icon...

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Nothing in the universe is static. In the Milky Way, billions of stars orbit the galactic center. Some, like our Sun, are pretty consistent, keeping a distance of around 30,000 light years from the ...

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DNA is under constant attack from reactive chemicals and natural background radiation. Free radicals are the byproducts of normal metabolism in human cells. Seen here as bright particl...

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3D printing is fairly new to Palaeontology. It allows scientists to print their own replicas of fossils based on X-ray scans of the originals. One of the most famous fossils to be scanned is Lucy: ...

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A common technique in genetic engineering is to insert a new gene into a loop of bacterial DNA called a plasmid. The molecular tool used to cut DNA is a restriction enzyme, such as Eco...

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It's hard to get to space. As much as we all wish there were an easy, and affordable way to see our planet floating in the dark. Right now, the only way is to become an astronaut or a billionare. ...