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科学美国人60秒 SSS Science News Briefs from around the World

时间:2020-03-10 23:44:15

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Here are a few brief reports about science and technology from around the world, including one from off the California coast about the first heart rate measurement done on a blue whale.

Full Transcript 

Hi, I’m Scientific American podcast editor Steve Mirsky. And here’s a short piece from the February 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 science and technology stories from around the globe, compiled by assistant news editor Sarah Lewin Frasier.

From the U.S.:

Off the California coast, scientists measured a blue whale’s heart rate for the first time, using a device attached to the animal's skin by suction cup. The heart, likely weighing hundreds of pounds, beats from two to 37 times per minute, varying dramatically between diving, feeding and surfacing.

From Peru:

Researchers analyzing1 satellite and imaging data have found 143 new Nazca lines—large line drawings of humans, animals and symbols etched into the Peruvian landscape millennia2 ago. They include a humanoid figure 16 feet across, spotted3 by IBM’s Watson AI system.

From Brazil:

Despite the long dry spells in Brazil’s Caatinga region, scientists found the tree Hymenaea cangaceira drizzles4 copious5 nectar from flowers to attract pollinating bats; a full-size tree can release 240 gallons of the stuff, with 38 distinct scent6 compounds, over a single dry season.

From Norway:

Archaeologists’ ground-piercing radar7 found a Viking-era ship, surrounded by a filled ditch, lurking8 below the soil of a western Norway farm. It was once within a burial mound9.

From Jordan:

Researchers uncovered a two-horned figure in early Islamic ruins that may be the earliest chess piece ever found. The roughly 1,300-year-old object matches a rook found in an Iranian chess set from about 400 years later.

From Ethiopia:

Microbes thrive in many of Earth’s harshest environments, but researchers found no life at all in briny10, scorching11, acidic pools near Ethiopia’s Dallol volcano. Knowing boundaries for life’s adaptation helps to narrow the search for Earth-like life on other planets.

That was “Quick Hits,” by Sarah Lewin Frasier.


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1 analyzing be408cc8d92ec310bb6260bc127c162b     
v.分析;分析( analyze的现在分词 );分解;解释;对…进行心理分析n.分析
参考例句:
  • Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据,暴露出的问题甚至更大。 来自辞典例句
  • He undoubtedly was not far off the mark in analyzing its predictions. 当然,他对其预测所作的分析倒也八九不离十。 来自辞典例句
2 millennia 3DHxf     
n.一千年,千禧年
参考例句:
  • For two millennia, exogamy was a major transgression for Jews. 两千年来,异族通婚一直是犹太人的一大禁忌。
  • In the course of millennia, the dinosaurs died out. 在几千年的时间里,恐龙逐渐死绝了。
3 spotted 7FEyj     
adj.有斑点的,斑纹的,弄污了的
参考例句:
  • The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
  • Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。
4 drizzles 0795d9268f9aeb16d93bed28edc86359     
蒙蒙细雨,毛毛雨( drizzle的名词复数 )
参考例句:
  • "Grain lain" day-bringing gentle drizzles-was not far off. “谷雨”节一天近一天了。 来自汉英文学 - 春蚕
  • It drizzles sometimes, moistening the thirsty fields lightly and selflessly. 它大多是毛毛细雨,轻柔而又无私地滋润着干涸的大地。
5 copious koizs     
adj.丰富的,大量的
参考例句:
  • She supports her theory with copious evidences.她以大量的例证来充实自己的理论。
  • Every star is a copious source of neutrinos.每颗恒星都是丰富的中微子源。
6 scent WThzs     
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉
参考例句:
  • The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
  • The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
7 radar kTUxx     
n.雷达,无线电探测器
参考例句:
  • They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
  • Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
8 lurking 332fb85b4d0f64d0e0d1ef0d34ebcbe7     
潜在
参考例句:
  • Why are you lurking around outside my house? 你在我房子外面鬼鬼祟祟的,想干什么?
  • There is a suspicious man lurking in the shadows. 有一可疑的人躲在阴暗中。 来自《现代英汉综合大词典》
9 mound unCzhy     
n.土墩,堤,小山;v.筑堤,用土堆防卫
参考例句:
  • The explorers climbed a mound to survey the land around them.勘探者爬上土丘去勘测周围的土地。
  • The mound can be used as our screen.这个土丘可做我们的掩蔽物。
10 briny JxPz6j     
adj.盐水的;很咸的;n.海洋
参考例句:
  • The briny water is not good for the growth of the trees.海水不利于这种树木的生长。
  • The briny air gave a foretaste of the nearby sea.咸空气是快近海的前兆。
11 scorching xjqzPr     
adj. 灼热的
参考例句:
  • a scorching, pitiless sun 灼热的骄阳
  • a scorching critique of the government's economic policy 对政府经济政策的严厉批评

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