Cugnot's vehicle was powered through a two - cylinder piston connected steam engine. It used high pressure steam as the power source. Watt patented late in 1781 a connection from the piston to a rotating gear. This set-up is still used in the internal combustion engine. Scottish engineer and inventor William Murdock created a vehicle that was powered by a miniature steam engine. In 1813, the precursors to the steam engine train was built by William Hedly. Between 1800 and 1825 steam powered travel increased. Boats, vehicles, and trains used steam engines. The method of steam production was by burning some substance. Superheated steam was produced in an experiment by Jacob Perkins in 1823. His experiment was called a flash boiler. Steam of this type is later used in nuclear power plants to turn the steam turbine. In 1892, Rudolf Diesel of Germany patented the diesel engine. It operated through fuel ignition that
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