b's -1 ; AV.James Watt (1736-1819) was a Scottish inventor and mechanical engineer renowned for his improve-ments of the steam engine. The watt is named after him.On Oct. 21, 1948, the ninth CGPM adopted the coulomb as a unit of electric charge, or the amount of electricity accumulated in one sec-ond by the current of an ampere.Mathematical expression of the coulomb is: C = As. Expression of the coulomb in terms of SI base units is: As.Charles-Augustin de Coulomb (1736-1806) was a French military engineer and physicist. He is best known as the discoverer of what now is called Coulombs law: the description of the electrostatic force of attraction and repulsion. The cou-lomb is named after him.CTEENGINEERED FORabout the authorCOMPLETE MOLDEdmund Isakov, Ph.D., is aPROCESSINGconsultant, a CTE contributorMILLING AND DRILLING REDEFINEDand the author of InternationalReach the highest levels of throughput and reduce your cycle System of Unitstimes with the USC-M series of milling and gundrilling machines. (SI): How the Featuring universal and dual-spindle options for aggressive metal World Measuresremoval, a rigid frame made for exceptional accuracy, and an Almost Every- automation-ready design, the USC-M series has the capabilities thing, and theyou need for mold making excellence.People WhoTRUST THE LEADERS IN PRECISION AND PERFORMANCE. Made It Possible, which is available at https://books.industrialpress.com. Contact him at 561-369-4063 or edmundisakov9701@ UNISIG.COMcomcast.net.ctemag.com/cteguide.com19MetricMatters.indd 19 8/14/20 4:13 PM'