Example image of eyePlorer eyePlorer map for 'Chain drive': Bicycle Motorcycle Roller chain Sprocket Ithaca, New York United States Idler-wheel Gear ratio History of Greece Philo of Byzantium Polybolos Repeating crossbow Windlass Leonardo da Vinci Armillary sphere Astronomical clock Clock tower History of China Horology Song Dynasty Su Song Escapement Factory Silk Inertia Friction Timing belt Derailleur gears Conveyor belt Drive shaft Torque Direct drive mechanism Penny-farthing Safety bicycle Automobile Automobile layout Hotchkiss drive Universal joint Axle Differential (mechanical device) Frazer Nash Archibald Frazer-Nash GN (car) Shelsley Walsh Speed Hill Climb Babs (car) J. G. Parry-Thomas Land speed record Honda S600 Internal combustion engine Overhead camshaft