A solar term is any of 24 points in traditional East Asian lunisolar calendars that matches a particular astronomical event or signifies some natural phenomenon. The points are spaced 15° apart along the ecliptic and are used by lunisolar calendars to stay synchronized with the seasons, which is crucial for agrarian societies. The solar terms are also used to calculate intercalary months in East Asian calendars; which month is repeated depends on the position of the sun at the time.
Solar terms originated in China, then spread to Korea, Vietnam, and Japan. This is exhibited by the fact that traditional Chinese, Hanja, and Kanji characters for most of the solar terms are identical.
Because the Sun's speed along the ecliptic varies depending on the Earth-Sun distance, the number of days that it takes the Sun to travel between each pair of solar terms varies slightly throughout the year. Each solar term is divided into three pentads (候 hou), so there are 72 pentads in a year. Each pentad consists of five, rarely six, days, and are mostly named after biological or botanical phenomena corresponding to the pentad.
Elon Musk (born June 28, 1971) is a South African-born American business magnate, engineer and inventor. He is best known for co-founding SpaceX, Tesla Motors and X.com, which later became Paypal after acquiring the service. He is currently the CEO and Chief Designer of SpaceX, CEO and Product Architect of Tesla Motors and Chairman of SolarCity. While at those companies, Musk co-designed the first viable electric car of the modern era, the Tesla Roadster, a private successor to the Space Shuttle, Falcon 9/Dragon, and the world's largest Internet payment system, PayPal.
Elon Musk was born in Pretoria, South Africa, the son of a Canadian-American mother and a South African father. His maternal grandfather was from Minnesota, and had moved to Saskatchewan, where Musk's mother was born. His father is an engineer and his mother is an author, nutritionist and model, appearing on the cover of New York Magazine in 2011 and a Time Magazine supplement in 2010.
Musk bought his first computer at age 10 and taught himself how to program; by the age of 12 he sold his first commercial software for about $500, a space game called Blastar.
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クリスタルボウル演奏家 川村かなえ 「Solar term Major cold 二十四節季 大寒 」
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A Small Homemade Solar Still
クリスタルボウル演奏家 川村かなえ 「Solar term Start of spring 二十四節季 立春」
PRC CCTV PEI STR DASHU SOLAR TERM 20070723
Korea Today - Beginning of soseo, 11th solar term '소서' 본격적인 여름 시작
クリスタルボウル演奏家 川村かなえ 「Solar term Major cold 二十四節季 大寒 」
What are my options after the solar term
二十四節氣(Solar term) 20130901
Tomas Leijtens - Sstability in methylammonium lead trihalide perovskite solar cells
Webinar: Impact of the oil price decline on solar energy stocks market
GRID TIE INVERTER SOLAR POWER EASY SOLAR SOLUTION POWER INVERTERS
Solar Eclipses: Stock Market Profits & Long-Term Cycles
Does solar thermal work in very cold temperatures? There is heat in light!
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