https://arab.news/j75h6
Author: Jason Rosenhouse
Logic puzzles were first introduced to the public by Lewis Carroll in the late 19th century and have been popular ever since.
Games like Sudoku and Mastermind are fun and engrossing recreational activities, but they also share deep foundations in mathematical logic and are worthy of serious intellectual inquiry.
“Games for Your Mind” explores the history and future of logic puzzles while enabling you to test your skill against a variety of puzzles yourself.
Flowering currant, ivy, Portuguese laurel, and woad might all have grown in a medieval garden, but it would have taken special expertise to extract and create rich blue and purple pigments from them.
Humans have been extracting dyes and inks from natural materials for millennia, and the practice was firmly established during the medieval era, recorded in manuscripts that survive today.
“Gold from Newton’s Apple Tree” brings together recipes for making natural colors according to season, method, and ingredients.
