Geometric elements in the plane intersecting, lines and circles, can characterize its intersection by a value called angle.
The notion of angle between two lines is the most elementary, and serves as a reference to define the angle between line and circle or two circles forming.
The so-called fundamental problem of tangents may occur with respect tangency conditions of a circle, instead of a straight.
Conceptually we can assume that the above is a particular case of this, if we consider the straight as a circle of infinite radius.
In both cases therefore apply similar reasoning for resolution, based on the concepts learned power.
Classically tangencies problems have been studied looking geometric constructions of each case study.
The concepts of power of a point on a circle can address the problems with a unifying approach, so that any tangency or incidences statement generally be reduced to a more generic fundamental problem tangents denominate (PFT).
Along with the concepts of power, Geometry triangle solves proportional means obtaining by known theorems height and Hick.
Before stating these theorems and deduce, recall some basic concepts of proportionality to understand what it is that we can solve with constructs derived from these geometric models.
On the day of the mother can not miss a video of the creation of life. Led by Alexander Tsiaras, participate in the development of MRI technique, We can see a digital image processing of great beauty and educational value that shows the process of creating a living.
A wonderful video taken from the always interesting TED talks
El concepto de potencia de un punto respecto de una circunferencia se basa en el producto de la mayor por la menor de las distancias de un punto a una circunferencia.
These distance values are given in the string that contains the center of the circle and the point, namely, in diameter containing said point.
Is it possible to generalize this concept to consider other strings passing through the point P?
The loci used to determine the solution of problems with geometric constraints. Among the conditions used are the angular nature and among them the orthogonality.
Given two circles, simply infinite set of circles that intersect orthogonally are grouped in a set called beam circumferences corradicales; These circles are centered on a line called the radical axis.
SmartInversion es un ingenio, Festo company, able to pull in the air due to a movement called inversion in which a band formed by articulated light polyhedra, helium-filled, rotate about themselves. This constant movement, rhythmical button, is the one that gives the drive in the middle.
Geometric transformations can be understood as a set of geometric operations that create a new figure from a previously given, invariants and properties obtained in these. The new figure is called “homologous” or correlative of the original depending on the nature of the transformation of its basic elements.
An interesting animation work, del Ringling College of Art + Design, which can be seen teaching uses image synthesis for education.
In this case a friendly oxygen atom pair is not easily due to its properties when combined with other elements is encouraged.
A fun way to learn and memorize complex aspects of chemical, developed with great imagination.
Incidence problems trying to identify common elements of two geometric figures; can be defined as special cases of belonging.
Starting from the line and plane elements, We can apply the concepts of duality to analyze the possible problems that may occur.
