In the chapter on "Solar System and Space Travel" Isambard talks about Mars as a very human-friendly sandbox. In the attached YouTube...

Infinity is a very difficult concept for humans to understand. This is actually incomprehensible. Isambart was busy with this a lot. But...

https://nl.wikipedia.org/wiki/Alexander_von_Humboldt This scientist is world famous in Germany. According to Darwin, he was the most...