Do both Galeb and Grundy NewBrain involve computers?
Grundy NewBrain The Grundy NewBrain was a microcomputer sold in the early 1980s by Grundy Business Systems Ltd of Teddington and Cambridge, England.
Mad About Physics Mad about Physics: Brainteasers, Paradoxes, and Curiosities by Christopher Jargodzki and Franklin Potter (2001, published by John Wiley and Sons) is a book containing 397 puzzles and their solutions. The book covers information on mechanics, electricity, magnetism, and optics, as well as the physics of sports, space exploration, and astronomy. "Mad about Physics" has been translated into seven languages, including German, Greek, Japanese, and Chinese. As of 2013, "Mad about Physics" is in its 10th reprinting.