gewicht
A can of spinach and BAM — you are ready to take on the world. That is if you follow Popeye's theory, of course. Everyone has muscle and fat to a greater or lesser extent. Together with your bones and your organs, these things determine your weight. And regardless of what your weight was, you still gained a bit until 2018. Le Grand K (the kilogram) has become a few micrograms lighter over the centuries. A weight that determines your weight.
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Route of Discoveries
There have been a lot of amazing and important discoveries done in Leiden. Follow the Route of Discoveries: see new places in the city or fi...
Playing with mathematics
Maths is really everywhere. Make a whirlpool and build your own bridge. Discover what sound looks like and play with perspective like an art...
