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Hace 6 horas · La Banda Sinfónica de la Universidad de las Américas Puebla (UDLAP), bajo la batuta de Marco Antonio Nava Morales, director invitado y orgulloso egresado de Música de la UDLAP, recibió el pasado 30 de abril, a niños y niñas para conmemorar su día con una muestra lúdica llena de música e historias. Con un repertorio musical…
Hace 1 día · En cierto momento Saturno está tan cerca de Júpiter que aparece una resonancia 3:2, para tres órbitas de Júpiter, Saturno daría dos órbitas; este proceso de resonancia, cuando Júpiter está a 1.5 UA (para entonces la Tierra aún no existe, s9lo está un disco de gas y escombros) y Saturno a 1.7 UA; a partir de este momento ocurre el Grand Tack (gran viraje), a unos cien mil años de ...
Hace 6 horas · Summary. Cosmic radiation (high-altitude radiation) consists mainly of fully ionized atomic nuclei (approx. 98%). In addition, significant components are electrons (approx. 2%). The origin of cosmic radiation is not precisely known. It is assumed that a very large proportion comes from the Milky Way.
Hace 1 día · Sir Alfred Joseph Hitchcock KBE (13 August 1899 – 29 April 1980) was an English film director. He is widely regarded as one of the most influential figures in the history of cinema. In a career spanning six decades, he directed over 50 feature films, many of which are still widely watched and studied today. Known as the "Master of Suspense", Hitchcock became as well known as any of his ...
Hace 6 horas · In this section, we briefly present the physical foundations for the evaluation of various astronomical and astrophysical observations. Of interest are the methods for determining distance, but also mass and speed of various objects. We distinguish between terrestrial and extraterrestrial observatories and observation techniques.
Hace 1 día · The Kentucky Derby (/ ˈ d ɜːr b i /) is an American Grade I stakes race run at Churchill Downs in Louisville, Kentucky.The race is run by three-year-old Thoroughbreds at a distance of 1 + 1 ⁄ 4 miles (10 furlongs; 2,012 metres). Colts and geldings carry 126 pounds (57 kilograms) and fillies 121 pounds (55 kilograms).. Held annually on the first Saturday in May, the race is the first leg ...
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