This is not an article explaining what a dark frame is or how to take one or how to subtract it from an image. It is only to share with you a few test images I made lately (my first actually); I am not relating the two topics (i.e; dark frame subtraction with light pollution!):
No dark frame subtraction
With dark frame subtraction
Some videos & links about the recent update regarding the (Higgs) boson:
“We know it is a new boson. But we still have to prove definitively that it is the one that Higgs predicted.”
“It’s a boson:” Higgs quest bears new particle [Reuters]
This video made with the support of the University of California at Irvine.
Others
Live-Blogging the Higgs Seminar
[vid] Higgs Boson announcement from Cern: as it happened
[vid] Press Conference: Update on the search for the Higgs boson at CERN on 4 July 2012
This post is one of a series of short posts on the three main astroimaging techniques; scenic, afocal, and prime focus. This series is also part of a larger series on the fundamentals of astroimaging which are based on a presentation was preparing a while ago. For today I will introduce you to the first, the scenic image which you naturally take quite often. As a start here’s the definition of “scenic”:
Scenic: Of or pertaining to scenery; of the nature of scenery; theatrical [1913 Webster]
As the definition implies, such an image is one of people or anything in the foreground along with some natural scene in the background. By natural scene I mean a scene of nature; a scene with trees or mountains or land or the horizon or anything Earthly or a combination of those.
This imaging technique is a relatively easy to use as people do it all the time, naturally; all that it requires is some perception. I chose this this particular technique for this post since a very nice imaging opportunity [1] is coming soon which you could use to both learn this imaging technique and to take a nice astroimage with relative ease. All you need is your cam and your tripod (or use your imagination & skills to position the cam on a surface with the right angle & direction; for example you could use a table mount, or an inclined book). Continue reading
The computer is a little over 70 years old. The first computer, many articles & resources claim, is the “Electronic Numerical Integrator And Computer“, or ENIAC for short, which is not technically correct. Many other computers preceded ENIAC most of which were developed for military purposes (e.g; calculation of artillery, cryptoanalysis, etc…) and were analogue (or electro-mechanical) & programmed by punched cards. ENIAC was a room-sized computer that required several people to operate by turning on/off switches that made use of vacuum tubes the ancestor of the modern transistor.
One particularly interesting electromechanical machine (could be called a computer) was the “bombe” [1] which was [designed] by the mathematician Alan Turing to be used to crack the Enigma, the code used by the Nazi to encrypt messages.
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Ibrahim El Merehbi 
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