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The Wonderful Walk: Scientific treasure hunt with assignments
On this scientific treasure hunt full of fun assignments you will find science where you didn't expect it. You will discover how to measure a statue without climbing on it, how to keep your balance without falling into the Graslei, how colors work …
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The history of the bicycle: Overview
This article covers the evolution of the bicycle in five steps, from balance bike to bicycle.
- Laufmachines and hobby horses
- Pedals on the balance bike
- Higher, faster and... more dangerous
- the tricycle
- A safety on pneumatic tires
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