http://science.nasa.gov/headlines/y2008/10jan_solarcycle24.htm
Solar Cycle 24 Begins
"On January 4, 2008, a reversed-polarity sunspot appeared—and this signals the start of Solar Cycle 24," says David Hathaway of the Marshall Space Flight Center.
Solar Cycle 24 Begins
"On January 4, 2008, a reversed-polarity sunspot appeared—and this signals the start of Solar Cycle 24," says David Hathaway of the Marshall Space Flight Center.
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是非成敗誰先覺 進退存亡我自知
"Anyone can be a millionaire,but to become a billionaire,
You need an astrologer."—J. P. Morgan
https://www.kurich.net/
是非成敗誰先覺 進退存亡我自知
"Anyone can be a millionaire,but to become a billionaire,
You need an astrologer."—J. P. Morgan
https://www.kurich.net/
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