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Posted on 14. October 2020

Zero downtime on MySQL schema change

Have you ever deployed a feature which interrupted your application because the schema change on the MySQL database has locked the table? Then I have good news for you! There are some tools like the Percona Toolkit which can apply the operation without a downtime.
Posted on 5. November 2015

Combining data sources without control structures

Inspired by a tweet of Dominikus Herzberg, I have created a small JavaScript which combines location data with Google Maps to show the current location of the ISS above the ground in almost real-time without any control structures in the code.
Posted on 21. March 2015

Timelapse of the sun eclipse with the help of python

On the 20th March 2015, there was a partial sun eclipse. I wanted to make a timelapse. I put my camera on a tripod, placed the sun in the lower left corner of the display and started the timelapse mode which made a photo every 5 seconds. After 20 muinutes, I realized that the sun will soon move out of the picture.
Posted on 21. January 2015

Anchor link with a fixed or sticky header

If you have an anchor link on a page with a fixed or sticky header, the element linked to will disappear behind the header. To fix this, you will have to add the property scroll-margin-top to the element.
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