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(单词翻译:双击或拖选)
Hi, I'm Scientific American podcast editor Steve Mirsky. And here's a short piece from the February 2019 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 science and technology stories from around the globe, compiled by editorial contributor Emiliano Rodríguez Mega.
From Greenland:
Scientists spotted1 a 19-mile-wide crater2 hidden below Hiawatha Glacier3 in northwestern Greenland. They believe it might represent a meteorite4 impact, but other experts say more evidence is needed to prove that the crater has an extraterrestrial origin.
From Chile:
One of the driest places o?n Earth, the Atacama Desert, is losing its microbial life because of unprecedented5 rains. Frequent rainfall for the past three years has caused the massive extinction6 of native bacterial7 species.
From Egypt:
An excavation8 near Cairo yielded dozens of mummified cats. Archaeologists also found two large mummified scarab beetles9 wrapped in linen10 and a rare collection of smaller scarab mummies.
From Palau:
The tiny Pacific archipelago became the first country to prohibit the use of sunscreens containing coral-toxic ingredients, including oxybenzone and octinoxate. The measure follows a similar legislative11 decision in Hawaii that takes effect in 2021.
And in South Africa:
Students in Cape12 Town made bricks using urine from men's toilets, in a biochemical process involving bacteria, calcium13 and sand. The bricks offer a productive—and odorless—way to recycle human urine.
That was Quick Hits by Emiliano Rodríguez Mega.
![收听单词发音](/images/play.gif)
1
spotted
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adj.有斑点的,斑纹的,弄污了的 | |
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2
crater
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n.火山口,弹坑 | |
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glacier
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n.冰川,冰河 | |
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meteorite
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n.陨石;流星 | |
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unprecedented
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adj.无前例的,新奇的 | |
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extinction
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n.熄灭,消亡,消灭,灭绝,绝种 | |
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bacterial
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a.细菌的 | |
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excavation
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n.挖掘,发掘;被挖掘之地 | |
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beetles
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n.甲虫( beetle的名词复数 ) | |
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linen
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n.亚麻布,亚麻线,亚麻制品;adj.亚麻布制的,亚麻的 | |
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legislative
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n.立法机构,立法权;adj.立法的,有立法权的 | |
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cape
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n.海角,岬;披肩,短披风 | |
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calcium
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n.钙(化学符号Ca) | |
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