Ruth Kassinger
Жанры и тэги:
Build a Better Mousetrap. Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge
Discover the secrets behind some amazing inventions! Through observation, experimentation, and perseverance, humans through the ages have managed to s…
ПодробнееBuild a Better Mousetrap. Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge
Discover the secrets behind some amazing inventions! Through observation, experimentation, and perseverance, humans through the ages have managed to s…
Подробнее