, 1 min read
As I commute to work with my e-bike I became more and more interested in bicycle lanes. It looks that this a coming trend in many modern cities. See for example New York, New York's streets? Not so mean any more, a talk by former chief of the department of transport Janette Sadik-Khan under the…
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This is the output of lstopo --of png > ~/tmp/lstopo.png for a machine with an AMD octacore FX 8120, bulldozer architecture, see AMD Bulldozer CPU Architecture Overview. One can just type lstopo, which shows the same in a separate window. lstopo is part of hwloc in Arch or hwloc in…
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Since Android 3 it is no longer possible to access the phone via USB mount. The reason being that Android puts everything into a single partition. As this single partition is always mounted by Android it is not easy to have two users (Android system and PC user) to write on this single partition.…
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Awesome picture from NASA.
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When the CPU is not properly cooled down, then the PC crashes, see below video. The solution for this particular case: Upgrade the BIOS.
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Today I received a free copy of a student-version of Lexware Financial Office Pro 2015 including a license key. Lexware is a financial accounting software which is easy to use and quite well suited for small German enterprises. I installed wine 1.6.2 on Ubuntu 14.04.2 LTS, which consumed almost…
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GSI Helmholtz Centre is a heavy ion research centre near Darmstadt. I visited this research facility on the 06-Jul-2015. It takes a couple of months to acquire a visiting day. Here are some impressions. I highly recommend the facility. Precious beam time is controlled here: Cabling: Combating…
, 10 min read
Very clear presentation on the uncountability of the real numbers, and the halting problem. Further keywords: Cantor, natural numbers, real numbers, diagonalization, bijection, Turing halting problem, proof by contradiction. -- -- -- Quote -- -- -- A while back we featured a post about why learning…
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Awesome picture. Also see Photographs from Space by Karen L. Nyberg.
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My current workplace in Frankfurt is 20 km from my home. In the past years I used the train to go there. Unfortunately the train became more and more unreliable. Sometimes the train had lots of delays, sometimes the train just didn't arrive, sometimes the train was heavily crowded, often the…
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I bought a new Mushkin SSD with 60 GB. These are the results with gnome-disk-utility. These are the benchmarks for the ADATA with 128 GB. Just for the records another speed test for a classical Seagate 1 TB hard disk drive, old but venerable. See also Hard-Disk and USB Drive Speed Comparisons.
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Some notes and sketches to install OxygenOS on the OnePlus One, plus some remarks on my experiences. Download twrp. Download OxygenOS from here. Unzip the file and check MD5 of oxygen_1.0.0_flashable.zip with MD5 from web-page. $ cat oxygen_1.0.0_flashable.md5 2d79312774c44d2fa2bf5bb0c877d1b7 …
, 5 min read
1. Problem statement Compiling source code with a compiler usually employs the make command which keeps track of dependencies. Additionally GNU make can parallelize your build using the j-parameter. Often you also want a so called clean build, i.e., compile all source code files, just in case make…
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This blog was viewed more than 20.000 times. As in this post, here are the numbers: The averages per day are: The development of visits is as below: Top posts (all time) are: Most visits come from US and Germany by a wide margin:
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The new editor in WordPress.com is quite annoying. It is annoying because: list of categories do not show up edit area is smaller "copy a post" is missing "format" menu is now a drop-down Unfortunately there is no option to switch back and forth between the annoying and the…
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I have four free invites to purchase a OnePlus One smartphone. Below are the codes: GLU4-W66Y-VALB-PEPS GLZK-QIZH-3GAL-QQYQ GLQ5-74SJ-EDCA-GH1K GLRW-XU8U-8MSB-GQ28 They expire within one day.
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Two more invites: GL05-1RXC-BCFK-C3VN GLCF-1RUJ-ODEW-1YZW These are now expired.
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I have again two free invites to purchase a OnePlus One smartphone. Below are the codes: GLFB-GQM2-ZDHX-2XJM GLQW-0J5G-URN3-ZPIC The last two invites were just claimed, and were not actually used. This is really a waste of these invites, as there are a lot of people who really would like to…
, 2 min read
Yet another excellent speech from Malcolm Gladwell given at High Point University, see highpoint.edu. This time on Financial crisis of 2007–08 Battle of Chancellorsville between General Lee and Joe Hooker during the American Civil War in 1863 Overconfidence and miscalibration, results from…
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A very interesting speech of Malcolm Gladwell on stubbornness in below YouTube video. Dead link. Video is here: Conference: Genius in 2012 He makes references to Linear B, i.e., historic greek symbols Michael Ventris, deciphering Linear B Andrew Wiles and his proof for Fermat's Last Theorem, no…