For the topics click on the respective tabs - you will get to an overview page.
Click on the tab at the top of the individual pages to return to the overview page,
or on another tab to change the topic.
February 16, 2018: Pages for the Celestron StarSense module published
February 15, 2018: Photos of the Moon with captions published
January 12, 2018: Various pages on video astronomy declared "ready," other pages will remain "in progress" for a longer period of time; page about alignment stars for SynScan published
December 13, 2017: Calender for 2018 published
End of November 2017: Astro pages about Unistellar eVscope, Atik Infinity, and Sky-Watcher Skymax-127 started
November 2017: Further pages and updates for the RX100 M4 and M1 around close-up lenses and filter adapters;
complete observation list published in the astronomy section
wrote a number of articles for the SAP-internal User Experience Website but
closed that section in 2008.
On the walodesign Website, I republished my articles - of course without SAP specifics.
The articles appear in three categories: DAU Stories, UI Design Thoughts und UI Design Issues.
In addition, I copublished my UI Design Blink blog articles (2010, 2011, 2012, 2013) there (slightly adapted).