1992
6225 Vectorspace BlvdTitusvilleState: FLZip: 32780Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/air-and-space-transportation/-162-apollo-space-command-module-%281968%29, http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo14info.htmlCreator: North American Aviation
The roman emperor Trajan ordered a new aqueduct be built to bring fresh water to Italy's Trastevere region and parts of Rome. The water is collected from five springs that feed the lake at Bracciano, and traverses over 25 miles into Rome. To maintain an even gradient, the aqueduct follows a meandering alignment through the countryside to avoid hills and major valleys. The water runs through an open-channel canal that is either arch-supported, at-grade, or underground.
DallasState: TXZip: 75254Country: USAWebsite: https://www.asme.org/about-asme/engineering-history/landmarks/163-meter-type-gas-odorizerCreator: Sillers, Don A.
Created by Don A. Sillers, founder of Peerless Manufacturing, and Alexander Clarke, this early Type M gas odorizer—Serial No. 2105—served from 1942 to 1992. It injected a precise amount of pungent liquid into the gas flow. The patent was filed June 18, 1939, and granted (2,240,808) on May 6, 1941. The Type M odorizer established itself as a dependable, long-lasting safety device. This particular unit operated 25 years without maintenance.
The ABACUS II, designed and built by Texas Instruments, was the first practical automated production machine for the assembly of integrated circuits. Using heat and pressure, it bonded fine gold wire to microscopic contacts on the silicon chip and pin connections on the package.
The ABACUS II could maintain a positioning accuracy of ± 0.00025 inch while bonding up to 375 devices an hour. Following the success of this prototype, almost 1,000 ABACUS II wire bonders were built, making the economical mass production of integrated circuits a reality.

