. Highland Echo 1915-1925. eaching gonse-quence in the field of research wasrewarded. The filament producedhad a startling tensile strength—about 600,000 pounds per squareinch for wire one-thousandth of aninch in diameter. It was so pliablethat it could be wound into anyform safely and handled with nothought of its breaking. Wolframite is the most importanttungsten ore. It is obtained fromboth Korea and the United from the ore is compar-atively simple, yielding metallictungsten in the form of powder ofvarious density. This powder i?fornipd into ingots by great hydrau-lic pres
. Highland Echo 1915-1925. eaching gonse-quence in the field of research wasrewarded. The filament producedhad a startling tensile strength—about 600,000 pounds per squareinch for wire one-thousandth of aninch in diameter. It was so pliablethat it could be wound into anyform safely and handled with nothought of its breaking. Wolframite is the most importanttungsten ore. It is obtained fromboth Korea and the United from the ore is compar-atively simple, yielding metallictungsten in the form of powder ofvarious density. This powder i?fornipd into ingots by great hydrau-lic pressure—not by fusion. Themelting point of tungsten is about3550O C, being higher than for anyother known metal. From ingots tofine wire there are many steps,every one important, in the compli-cated process. The tungsten filament has doubl-ed the efficiency of incandescentlamps and provides a white lightof far purer quality than any lampheretofore known. It has providednew targets for X-ray tubes, pho>H>- TOWN PESTS. EXCHANGE I want a kind? Got anything real striking?How about a club? —Punch Bowl. Our Private Test comes into thisBusy Oflice, grinning like a Hyena,to Ioiiit out a Typograpliical Krrorin ihe Iaper. Lilie all Newspapers,we iiiai<e Errors and we Expect toKeep Uiglit On making Them, andwe are not Worrying very much AboutIt, Whats More! Why talk about this Ijaing ayoung mans age? The average ageo f George Washingtons cabinetwas under 40, of Hardings it is58. When Alexander Hamilton wasSecretary of the Treasury he wasbut 32, Mr. Mellon is 66. At 30Alexander the Great was longingfor more worlds to conquer, at 68Foch was hailed as the greatest ofgenerals. Pitt was not over 25when he was bossing England. Ben-jamin Franklin was leading Phila-delphias business men at 25. JohnWanamaker at 84 holds the reins inhis vast merchandising enterprises,Byion blinked out before he was40, Lyman Abbott is going strongas he nears 90. —Association Men. When you
Size: 1291px × 1934px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectmaryvil, bookyear1915
