Greek engineer Hero of Alexandria designs the first steam engine ... After adding a valve to keep the device from exploding, he conceives of a piston and cylinder concept using steam.

Thus, the natural progression from there was to build a piston-type steam engine. The sliding valve alternately feeds steam to each side of the piston. Resin prints are key here, as the melting ...

A mechanic of this city has constructed and set in motion a steam engine on the ... of working the valves, their motion is continued d urin g the passage of the main piston through the length ...

The steam passages of the slide valve are closed earlier or later, according to the velocity of the piston, by the action of this governor valve, to regulate the speed of the engine. The governor ...

They decided to build a working model of a steam engine but couldn ... It’s feeding a reservoir that connects to the valve built out of straws. A plastic piston inside pushes against the ...

The introduction of several advanced, efficient, and more robust power options over the years has largely overshadowed steam ... valve, in turn, is controlled by a cam, which leads to the engine ...

“Hell on wheels” doesn’t begin to describe the latest creation by Kenny Hauk, owner of Hauk Designs and River Raider Off-Road in Chambersburg, Pennsylvania. This faux locomotive weighs in at ...