d라이브러리
- A Little Neptune Suggests Big Things과학동아 l2012년 05호
- 165 years and 4.3 billion km. What’s more, the parent star of GJ 1214b is a M-dwarf, much smaller, dimmer and cooler than the sun. In the early days of planet hunting, everyone was focused on w ...
- Why Are Flu Viruses Seasonal?과학동아 l2009년 09호
- even rates of flu infection all year long, without the sharp peaks and valleys of infection rate graphs seen in cooler countries. But cold temperatures aren’t the only reason for the fluctuatio ...
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- 기후와 이산화탄소과학동아 l1993년 12호
- to be added to the atmosphere every year.Cities need less air conditioning when trees are planted — it's noticeably cooler in Central Park than it is a few feet away on the New York City street ...
- 타조알과 인류의 나이과학동아 l1990년 07호
- be found that are up to 200,000 years old at some places in Africa.In China, where the temperature is, on the whole, cooler than in Africa, it is possible that ages of up to 1,000,000 years can ...
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