Vehicles and vessels
Numerous varieties of dirigible, ship, and time travel device appear within the book. Many seem to suggest cartoons and animations. Among space ships are the yellow submarine, Jules Verne’s submarine, the Poseidon, the balloon of Around the World in 80 days, the Nebuchadnezzar of the Matrix, among others. For time travel there are at least Dr. Who’s Tardis and HG Wells’ time machine.