Archive for April, 2009

Model rocket launch

Here’s a nice rocket launch (seems rather similar to an alternative clip which is shorter and has no high quality version, but might contain some more pieces of info), apparently reaching about 1350 meters (4441 feet, according to a comment). Features one very smooth landing, too. 😎

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I’ve been following this for a while now. With platforms like Linux around, why not aim for open hardware? OSNews has the latest (here and here).

Update 23 April: added link to second OSNews article.

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Doug Mahugh of Microsoft writes1 on Twitter:

XPS will be submitted to Ecma within three weeks, likely to be approved at the Ecma GA in June. Have decided not to submit to ISO.”

No ISO submission? Interesting. Note: XPS, Microsoft’s alternative to PDF, depends on their own “HD Photo” (see slide 14) Also known as “JPEG XR”, it is about to be processed through ISO this year.

1 Someone found this piece. As for myself, I believe I’m “too old” to use things like Twitter.

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I’ve always found the man page for top to be painful to get through1, so I was quite happy when I found some old tips on how to get the most out of this nice utility. Not everything is in there, but it should be enough.

Another thing I’ve been looking for since ages ago is iotop (available in Debian and Ubuntu), letting you monitor disk activity on a per-process basis. This feature requires kernel version 2.6.20 or later.

1 In a way it feels like reading the man page for mplayer from end to end, albeit 7,000 lines shorter.

Update 7 April: thought I might as well mention jnettop too (its package name in Debian and Ubuntu), and you should of course know about dstat.

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