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Hace 20 horas · Con ella se establecen dos principios fundamentales en la teoría de circuitos eléctricos: la ley de corrientes de Kirchhoff (o primera ley) y la ley de tensiones de Kirchhoff (o segunda ley). La primera ley establece que la suma algebraica de las corrientes que entran y salen de un nodo en un circuito eléctrico es igual a cero.
Hace 20 horas · The winners of the 2010 UNESCO-L'Oréal Prize for Women in Science Awards Ceremony at UNESCO Headquarters, Paris – From left to right; Elaine Fuchs (United States of America), Anne Dejean-Assémat (France), Sir Lindsay Owen-Jones, Chairman of L'Oréal, Alejandra Bravo (Mexico), Lourdes J. Cruz (Philippines), Rashika El Ridi (Egypt), Ms Irina Bokova, Director-General of UNESCO, and Günter ...
Hace 20 horas · Columbia University, officially Columbia University in the City of New York, is a private, Ivy League, research university in New York City.Established in 1754 as King's College on the grounds of Trinity Church in Manhattan, it is the oldest institution of higher education in New York and the fifth-oldest in the United States and is considered one of the most prestigious universities in the world.
