Media Contributed by Rick
The Spirit of '76 Originally entitled Yankee Doodle, this is one of several versions of a scene painted by A. M. Willard that came to be known as The Spirit of '76. Often imitated or parodied, it is a familiar symbol of American patriotism
Watt steam engine A late version of a Watt double-acting steam engine, built by D. Napier & Son (London) in 1859, now in the lobby of the Superior Technical School of Industrial Engineers of the UPM (Madrid). Steam engines of this kind propelled the Industrial Revolution in Great Britain and the world.
Original condenser by Watt Top frontal view of the first ever Watt condenser which led to the improvement of the Boulton & Watt steam Engines in comparison with their contemporaries. Steam enters brass condenser at the left. The Steam is forced through the condenser by an air pump (vacuum pump), part of the outer tubing of the later can be seen attached to the steam inlet into the condenser. The steam flows through the input tube down two smaller tubes (not visible) into the false bottom of the condenser which is connected to the integral air pump. For operation the condenser was filled with water.
David Hume by Allan Ramsay, 1766
