Feb
21

DSC_0559sDSC_0560s

DSC_0518sA further look into Google pictures tells a story without words.

Nov
02

Our Highlight in 2015 was being at the 11th World Karate Championship with tickets for the second day finals. Well done. Osu!

 

Feb
24

opensuse 140x140 ubuntu-140x140Welcome Ubuntu, Sayonara openSUSE! After the support expiration of OpenSUSE 12.3 in January, this server has just been migrated to Ubuntu 14.04.2 LTS. OpenSUSE run great during the five years, spanning versions 11.2, 11.4, 12.1 until 12.3. However the 18-month support cycle of OpenSuse required an almost annual upgrade, while Ubuntu provides longterm support versions covering five years.

Ubuntu brings back a Debian-based OS to the server, it was running Debian from its beginnings in 2004 through 2009. OpenSuse was very useful as a side operating system to Suse Linux Enterprise Server (SLES). Unfortunately my workplace no longer supports any Linux, and there is no point in sustaining SLES familiarity or knowledge.

Jan
04

wireframe2和時計 (wadokei) are mechanical clocks telling the traditional Japanese time. Unlike elsewhere, Japan maintained a unique time system that measured day time from sunrise to sunset and night time from sunset to sunrise, splitting both periods into six units. This system created a real challenge for clockmakers. For one, the six night time units are much shorter than their daytime equivalents. Further, daylight hours vary over the year, becoming longer in summer and shorter in winter. This required a weight adjustment, done twice a month.

Foliot clocks are known in Europe since the middle ages, and were popular until the superior pendulum design took over from the 17 century. Brought to Japan by Jesuit missionaries and Dutch merchants, local craftsmen adapted European clock design to Japanese needs, adding a second foliot. This addressed the need for different clock speeds during daytime and night time.

On first glance, the face of a Japanese clock with 12 sections looks similar to European eyes. On closer inspection, it quickly turns out that 12 midnight is at the bottom, while 12 noon is at the top. Both are labeled as 9. There are no units numbered 1-3, the system starts with 4. The time units are also named after animals from the Japanese zodiac, midnight is the hour of the rat.

This model of a double foliot Japanese clock was constructed and rendered in Cinema 4D. It was build after real parts from the educational kit produced by Gakken in 2010. Klick to enlarge.

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