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科學(xué)美國(guó)人60秒:全球科學(xué)快訊

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Hi, I'm Scientific American podcast editor Steve Mirsky. And here's a short piece from the March 2020 issue of the magazine, in the section called Advances: Dispatches from the Frontiers of Science, Technology and Medicine.
The article is titled "Quick Hits," and it's a rundown of some noncoronavirus stories from around the globe, compiled by assistant news editor Sarah Lewin Frasier.
From the Dominican Republic:
A sunken museum at La Caleta Underwater National Park will preserve in place a ship that sank in 1725, complete with real (and replica) artifacts kept underwater for people to explore. Submerged artifacts often degrade faster when removed from the sea.
From Greenland:
New simulations indicate that a rocky valley detected under the island's ice sheet may contain a 1,600-kilometer-long subterranean river, flowing from central Greenland to its northern coast.
From Greece:
Archaeologists uncovered gold, jewels and beads in a large building on the now uninhabited Minoan island of Chrysi, a location that about 3,500 years ago was devoted to making purple dye from sea snails called Murex.
From England:
Researchers found 1,700-year-old chicken eggs, along with other ancient objects, in a waterlogged pit in southeastern England. A few eggs broke during extraction, releasing a sulfurous smell—but one remained intact, making it the only complete egg found from Roman Britain.

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From Australia:
To help boost Sydney Harbor's endangered seahorse population, scientists bred baby seahorses in an aquarium and built crab-trap-like undersea "hotels" to protect them as they adapt to the wild.
And from Antarctica:
Scientists test-drove a meter-long, wheeled rover that streamed live views of the depths as it rolled along the underside of Antarctic ice. The Buoyant Rover for Under-Ice Exploration (BRUIE) could someday explore frozen-over seas on worlds such as Jupiter's moon Europa.
That was "Quick Hits," by Sarah Lewin Frasier.

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重點(diǎn)單詞   查看全部解釋    
harbor ['hɑ:bə]

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n. 海港,避難所
vt. 庇護(hù),心懷,窩藏<

 
explore [iks'plɔ:]

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v. 探險(xiǎn),探測(cè),探究

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remove [ri'mu:v]

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v. 消除,除去,脫掉,搬遷
n. 去除

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population [.pɔpju'leiʃən]

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n. 人口 ,(全體)居民,人數(shù)

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adapt [ə'dæpt]

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vt. 使適應(yīng),改編
vi. 適應(yīng),適合

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contain [kən'tein]

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vt. 包含,容納,克制,抑制
vi. 自制

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protect [prə'tekt]

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vt. 保護(hù),投保

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indicate ['indikeit]

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v. 顯示,象征,指示
v. 指明,表明

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devoted [di'vəutid]

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adj. 投入的,深愛的 v. 投入 vbl. 投入

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buoyant ['bɔiənt]

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adj. 有浮力的,心情愉快的,趨于上漲的

 
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