The Practice Effectby David Brin Dennis Nuel is a physicist who, during his research, develops a machine that allows him to explore alternate realities, each of which sport some very strange scientific properties. Pages of The Practice Effect : Page 1Page 2Page 3Page 4Page 5Page 6Page 7Page 8Page 9Page 10Page 11Page 12Page 13Page 14Page 15Page 16Page 17Page 18Page 19Page 20Page 21Page 22Page 23Page 24Page 25Page 26Page 27Page 28Page 29Page 30Page 31