RMS Mauretania (1906) launched by the Duchess of Roxburghe. At the time of her launch, she was the largest moving structure ever built, and slightly larger in gross tonnage than "Lusitania". The main visual differences between "Mauretania" and "Lusitania" were that "Mauretania" was five feet longer and had different vents. "Mauretania" also had two extra stages of turbine blades in her forward turbines, making her slightly faster than "Lusitania". "Mauretania" and "Lusitania" were the only ships with direct-drive steam turbines to hold the Blue Riband; in later ships, reduction-geared turbines were mainly used. "Mauretania"s usage of the steam turbine was the largest application
The World That Never Was "full of bathos as well as bombs, of a naivety that fomented revolution but never controlled what happened next" and also noted its relevance to 21st-century terrorism. Wendy Smith in the "Los Angeles Times" praised "Butterworth's deeply knowledgeable, exceedingly well-written text" for its awareness of anarchism's shortcomings, and "The Washington Post"'s John Smolens described "The World That Never Was" as a "thorough, compelling examination" capable of portraying "anarchism as the product of an inexorable human impulse" and questioning whether anarchist ideas may persist in the present. Mark Mazower of "Bookforum" commended the book for showing the significance of the period