Ruth Kassinger

Произведения автора 2

Только полные версии книг

РОМАНЫ и ПОВЕСТИ

Build a Better Mousetrap. Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge

электронная книга

Год написания книги 2018

Discover the secrets behind some amazing inventions! Through observation, experimentation, and perseverance, humans through the ages have managed to solve a whole array of perplexing problems. Th…