Tag: sink or swim

I have had these two words on my mind over the last couple of days: “flexpert” and “pre-industrial”. Some thoughts about them here…

This is an experiment that Martin brought to Ratzeburg and that he let me use on my blog: Using a beam balance to talk about buoyancy. So at first we have two objects hanging on the beam balance, a heavy one with a large volume, and a lighter one with a smaller volume. As we […]

A pet peeve of mine are books on handcrafts or experiments or any kind of activity that come with drawings instead of pictures, because I always suspect that it was easier to draw whatever the author wanted to show than to take a photo of it. Which, to me, suggests that it isn’t really all […]