Kwakkelflap » Gravitational Lensing
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Gravitational Lensing 1.00

Free Gravitational Lensing screenshot file
Einstein`s General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light. So, a very massive object, such as a cluster of galaxies can act as a gravitational lens. When light passes through the cluster from an object lying behind it, the light is bent and focused to produce an image or images of the source. The image may be magnified, distorted, or multiplied by the lens, depending upon the position of the source with respect to the lensing mass. The characteristics of the gravitationally lensed image depend upon the alignment of the observer, the lens and the background object. If the alignment is perfect, the resulting image is an Einstein Ring. With this program, one can draw images to see the effect of gravitational lensing. You can easily test the effects of several parameters by changing them and redrawing the image.
Type : Freeware » EULA
OS Support : Windows All
Date / Size : Dec, 5. 2006 / 74 kBytes
Require : unspecified
Users' rating : - Write a Review
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Distribution permissions for Gravitational Lensing
This program and the accompanying documentation are Copyright (C) 2001 - 2002
by Kwakkelflap. You are allowed to redistribute it, provided that all
the files in the original archive are distributed together and no changes
are made to any file in the distribution. You can`t charge for the
program, only for distributing it. You have to clearly identify us
(Maarten Vandenbroucke & Wouter Dhondt) as the authors.

The same things in English:

- If you copy it, don`t claim that you`ve made it yourself, or change it in any way; and copy both program and documentation.

- You are free to offer the program on your web page. All I ask for is that you give a link back to mine, and that you state that the program was made by Maarten Vandenbroucke & Wouter Dhondt
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