单词：isotopic geoscience
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest
Scientific American(九)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar
Scientific American(一)月
Scientists Closer to Solving Plain of Jars Mystery A new group of human remains has been uncovered on the Plain of Jars in Laos. They are believed to date back to the Iron Age, some 2,500 years ago. The Plain of Jars is in the central Lao province of
2016年VOA慢速英语(三)月
As in many other fields, gender bias pervades the sciences. Men score higher starting salaries, have more mentoring, and have better odds of being hired. Studies show theyre also perceived as more competent than women in STEM fields. And new research
2016年Scientific American(十)月
Rain Zone Moving North An article in Nature Geoscience predicts that the rainiest area on Earth, the intertropical convergence zone, is moving steadily north. Christie Nicholson reports [The following is an exact transcript of this podcast.] If youv
60秒科学
SYDNEY, April 17 (Xinhua) -- A strong 6.8-magnitude earthquake has struck Papua New Guinea (PNG) on Wednesday, Geoscience Australia said. The earthquake, at a depth of 20 kilometers, occurred near the north coast of New Guinea, PNG at 8:55 a.m. (Aust
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