Concentrated solar power (CSP, also known as concentrating solar power, concentrated solar thermal) systems generate solar power by using mirrors or lenses...

occasionally adds one intercalary month to remain synchronized with the solar year over the long term. The term calendar is taken from kalendae, the term...

other in the world.[citation needed] Pavía, Alemany F. (1986): El Calendario solar Da pedra de Ingá. Una hipótesis de trabajo. Boletim serie ensayos nov/86...

 'black'), Latinized as Soranus, was an ancient Etruscan infernal, volcanic and solar fire god, also venerated by other Italic peoples – among them Capenates...

adding an extra day when needed, while ignoring the annual solar cycle of the seasons. The solar calendar, which fits artificial months into the year, adding...

tlahtolcuepalli itech tonalamatl gregoriano itech mexihca tonalamatl / Convertidor calendario gregoriano -> sistema calendárico mexica / Gregorian calendar -> mexica...

In the center of the monolith is often believed to be the face of the solar deity, Tonatiuh, which appears inside the glyph for "movement" (Nahuatl:...

2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun. The rule...

The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar...

Gallardo, Rosa García, Sonia Heredia, Natalia Málaga, Gabriela Pérez del Solar, Carmen Pimentel, Cecilia Tait, and Gina Torrealva. Seoul 1988 — Silver...