IN: James Watt  (30 January 1736 (19 January 1736 OS) - 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines. He realised that contemporary engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.

In 1776, the first engines were installed and working in commercial enterprises. These first engines were used to power pumps and produced only reciprocating motion to move the pump rods at the bottom of the shaft. The design was commercially successful, and for the next five years Watt was very busy installing more engines, mostly in Cornwall for pumping water out of mines.  These early engines were not manufactured by Boulton and Watt, but were made by others according to drawings made by Watt, who served in the role of consulting engineer. The erection of the engine and its shakedown was supervised by Watt, at first, and then by men in the firm's employ. These were large machines. The first, for example, had a cylinder with a diameter of some 50 inches and an overall height of about 24 feet, and required the construction of a dedicated building to house it. Boulton and Watt charged an annual payment, equal to one third of the value of the coal saved in comparison to a Newcomen engine performing the same work.  The field of application for the invention was greatly widened when Boulton urged Watt to convert the reciprocating motion of the piston to produce rotational power for grinding, weaving and milling. Although a crank seemed the obvious solution to the conversion Watt and Boulton were stymied by a patent for this, whose holder, James Pickard, and associates proposed to cross-license the external condenser. Watt adamantly opposed this and they circumvented the patent by their sun and planet gear in 1781.  Over the next six years, he made a number of other improvements and modifications to the steam engine. A double acting engine, in which the steam acted alternately on the two sides of the piston was one. He described methods for working the steam "expansively" (i.e., using steam at pressures well above atmospheric). A compound engine, which connected two or more engines was described. Two more patents were granted for these in 1781 and 1782. Numerous other improvements that made for easier manufacture and installation were continually implemented. One of these included the use of the steam indicator which produced an informative plot of the pressure in the cylinder against its volume, which he kept as a trade secret. Another important invention, one which Watt was most proud of, was the parallel motion which was essential in double-acting engines as it produced the straight line motion required for the cylinder rod and pump, from the connected rocking beam, whose end moves in a circular arc. This was patented in 1784. A throttle valve to control the power of the engine, and a centrifugal governor, patented in 1788, to keep it from "running away" were very important. These improvements taken together produced an engine which was up to five times as efficient in its use of fuel as the Newcomen engine.  Because of the danger of exploding boilers, which were in a very primitive stage of development, and the ongoing issues with leaks, Watt restricted his use of high pressure steam - all of his engines used steam at near atmospheric pressure.
QUESTION: How did the engines work?
IN: Francisco Pizarro was born in Trujillo, Caceres, Spain (then in the Crown of Castile) in modern-day Extremadura, Spain. He was the illegitimate son of infantry colonel Gonzalo Pizarro (1446-1522) and Francisca Gonzalez, a woman of poor means. His date of birth is uncertain, but it is believed to be sometime in the 1470s, probably 1474. Little attention was paid to his education and he grew up illiterate.

Two years later Pizarro, Almagro and Luque started the arrangements for a second expedition with permission from Pedrarias Davila. The governor, who himself was preparing an expedition north to Nicaragua, was reluctant to permit another expedition, having lost confidence in Pizarro. The three associates eventually won his trust and he acquiesced. By this time, a new governor was to arrive and succeed Davila. Pedro de los Rios took charge in July 1526 and initially approved Pizarro's expeditions (he would join him several years later in Peru).  On 10 March 1526 Pizarro left Panama with two ships with 160 men and several horses, reaching as far as the Colombian San Juan River. Soon after arriving the party separated, with Pizarro staying to explore the new and often perilous territory off the swampy Colombian coasts, while the expedition's co-commander, Almagro, returned to Panama for reinforcements. Pizarro's Piloto Mayor (main pilot), Bartolome Ruiz, continued sailing south and, after crossing the equator, found and captured a balsa (raft) under sail, with natives from Tumbes. To everyone's surprise, these carried textiles, ceramic objects and some pieces of gold, silver and emeralds, making Ruiz's findings the central focus of this second expedition. Some natives were taken aboard Ruiz's ship to serve as interpreters.  He then set sail north for the San Juan River, arriving to find Pizarro and his men exhausted from the difficulties they had faced exploring the new territory. Soon Almagro sailed into the port laden with supplies and a reinforcement of at least eighty recruits who had arrived at Panama from Spain with an expeditionary spirit. The findings and excellent news from Ruiz along with Almagro's new reinforcements cheered Pizarro and his tired followers. They decided to sail back to the territory already explored by Ruiz and, after a difficult voyage due to strong winds and currents, reached Atacames on the Ecuadorian coast. Here, they found a large native population recently brought under Inca rule. Unfortunately for the conquistadores, the warlike spirit of the people they encountered seemed so defiant and dangerous in numbers that the Spanish decided not to enter the land.
QUESTION:
What did he find on his expedition?