Roland's homepage

My random knot in the Web

Older articles (4/12)

  1. Chickpea and vegetables stew

    This is a variation on a recipe that I found in a cookbook, because some of the ingredients in that cookbook aren't in season right now.

    The ingredients I used were:

    • one can of chickpeas (400 g)
    • one can of diced tomatoes (400 g)
    • 250 grams of French beans ...
  2. Making my first EPUB

    Now that I got an EPUB reader, I started looking for a way to make EPUB documents.

    In principle, an EPUB file is a zipfile with a certain layout, as can be seen on the wikipedia page linked above.

    The actual contents are just XHTML, while the metadata files are ...

  3. Filtering a sound recording

    Recently I was listening to an MP3 file of a talk about no-till gardening when I noticed that there was a noticable buzz in the sound. I figured I would try my hand at sound filtering with Python as a learning experience.

    The Python standard library doesn't have a ...

  4. Automated local backups

    These days it is commonplace to have hardware or software RAID1, even in common PCs. In previous machines I've used ataraid to implement RAID1.

    The advantage is that every write is recorded on two disks at once, minimizing the chance of data loss. The flip side of the coin ...

  5. Should system backups be compressed?

    Every now and then I make backups of my FreeBSD system's filesystems with the venerable dump program. This is the only program that can capture all features of the UFS filesystem. The filesystems to be backed up are:

    • The root filesystem.
    • The /usr filesystem.
    • The /var filesystem.

    Note

    My ...

  6. Making a composite plug or mould

    For the bus rear floor we initially made a prototype mould. This was done because of time constraints and because we weren't sure that there wouldn't be changes to the design.

    Now that the design is frozen it is time to make a fiberglass mould. This is done ...


←  Page 3 Page 4 / 12 Page 5 →