Very nice and useful! For young and old.

Funny, well written. The author likes to describe with humor and sometimes deliberately shifted vocabulary multiple small experiments. Descriptions and explanations are serious, well-described experiments. It reminded me of the "object lessons" of the primary school of old who, casually, we conferred an analytical mind and made us discover the scientific bases. The author did the same and it is very successful. A book for all the school's nostalgic past and today's children, and for parents who want to educate their children in the fun.