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Archive for January, 2012

This is the repository of the Debian testing, wheezy. It is still in the testing branch and will be stable by end of 2012. I have installed that recently. ################################################################################## deb ftp://ftp.debian.org/debian wheezy main contrib non-free deb-src ftp://ftp.debian.org/debian wheezy main contrib non-free deb http://ftp.debian.org/debian wheezy-proposed-updates main contrib non-free #deb http://security.debian.org/debian-security Wheezy/updates main deb http://security.debian.org/ wheezy/updates [...]

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Solar battery chargers

Recently, there are quite a lot of solar battery chargers. Such instruments like the one in the following image are able, in theory, to recharge mobile devices, ipods, etc when they are charged, and charge themselves using the sun light. In this particular example, the company provides the following specifications for the instrument: it has [...]

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M13 globular cluster in Hercules constellation is one of the favorite night sky objects for observers in northern hemisphere. This photo, captured on July 06, 2009. It is a composite photo of 23 exposures (8 seconds each). As usual, I used a Canon EOS 400D camera without tracking. The reduction and processing was done using [...]

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