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jueves, 16 de agosto de 2012

Spillway - Aliviadero (Amazing Engineering)


Beautiful star-shaped spillway, Kechut Reservoir, Jermuk, Armenia

A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed.  Spillways release floods so that the water does not overtop and damage or even destroy the dam. Except during flood periods, water does not normally flow over a spillway.


martes, 7 de agosto de 2012

Curiosity's Seven Minutes of Terror

Curiosity's Seven Minutes of Terror

Team members share the challenges of Curiosity's final minutes to landing on the surface of Mars.

NASA's Curiosity rover

This stop-motion video shows 297 frames from the Mars Descent Imager aboard NASA's Curiosity rover as it descended to the surface of Mars. These thumbnail images were received on Earth on Aug. 6, 2012, and cover the last two and a half minutes of descent.

lunes, 7 de mayo de 2012

Mecánica básica


Página web multimedia, destinada al primer ciclo de ESO, con alto grado de interactividad debido al uso de applets de Java que simulan en tiempo real el funcionamiento de los diferentes mecanismos básicos basados en las variables de entrada introducidas por el usuario.

MecanESO


Página web relacionada con los contenidos de Mecánica vistos en primer ciclo de ESO. Divide los contenidos en seis apartados: máquinas, operadores, mecanismos, organización, ejercicios e imprenta.