lunes, 20 de agosto de 2012
jueves, 27 de octubre de 2011
miércoles, 28 de septiembre de 2011
viernes, 23 de septiembre de 2011
Movimiento Rectilíneo Uniformemente Acelerado: The Movie
Advertencia: Este video ha sido hecho por alumnos y para alumnos. Incluye chistes y situaciones que podrían ser considerados inadecuados y sexistas para algunos. Se ofrece de antemano una disculpa si alguien se siente ofendido. Su intención es divulgar conocimiento de una manera amena.
jueves, 15 de septiembre de 2011
Chapter 2. Describing Motion: Kinematics in One Dimension
Hi,
By this time we´re working with the chapter two of our book (Giancoli): Kinematics in One Dimension... but do we really know what a Dimension is?
Taking a look at Wikipedia I just found:
In physics and mathematics, the dimension of a space or object is informally defined as the minimum number of coordinates needed to specify each point within it. Thus a line has a dimension of one because only one coordinate is needed to specify a point on it (for example, the point at 5 on a number line). A surface such as a plane or the surface of a cylinder or sphere has a dimension of two because two coordinates are needed to specify a point on it (for example, to locate a point on the surface of a sphere you need both its latitude and its longitude). The inside of a cube, a cylinder or a sphere is three-dimensional because three co-ordinates are needed to locate a point within these spaces.
In any case, I think on of the best way to understand what a Dimension is, is reading the classical book: Flatland.
By this time we´re working with the chapter two of our book (Giancoli): Kinematics in One Dimension... but do we really know what a Dimension is?
Taking a look at Wikipedia I just found:
In physics and mathematics, the dimension of a space or object is informally defined as the minimum number of coordinates needed to specify each point within it. Thus a line has a dimension of one because only one coordinate is needed to specify a point on it (for example, the point at 5 on a number line). A surface such as a plane or the surface of a cylinder or sphere has a dimension of two because two coordinates are needed to specify a point on it (for example, to locate a point on the surface of a sphere you need both its latitude and its longitude). The inside of a cube, a cylinder or a sphere is three-dimensional because three co-ordinates are needed to locate a point within these spaces.
In any case, I think on of the best way to understand what a Dimension is, is reading the classical book: Flatland.
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