| Show sd SCIENTIFIC FIG M MISCELLANY Metallic which I U ii of ot push m h Interest at the i time mite Wit mug ut Mint filet by Ity Dr Worm termo rn r on run Holton Bollon b h hu luy u tantalum t to 10 an i s In u a WH mat uni tube lube the lie metal separating ui ut tin tiit In lii a II later Inter process u mixed suit Hull of ut and I U Is i reduced educed b by potassium until the thi of cr pure lule und oxide l I Ii Is separated by distil distillation lation Jallon The Th metal I u is 10 so ductile that It U Uan tail an Rn be drawn Into H at Ire 1000 ot of an umi Inch In iii diameter Mixed is Ith unal unaltered oxide It II Inn omen harder than Ihan th III lie diamond mid tougher than the l heat t t steel Heel and at modi rule cruet cont It would I Ithe be bethe the Ideal battleship armor A An As a lamp filament tantalum uses uel only half halt ii is cut tent a am as cm lion lot foi tin lit Santo light A peculiarity or of tantalum IH is that It the inn a cell nf rut two IWO electrodes of or thin this metal with sulphuric add acid R as sloe will not allow an rent to 10 pa pass platinum um urn r tOl fiti i one ri the current can pass i In one on only Th The Tho of ot th the ascent ot of if siut 1111 ui In trees KM umi l botanist points out I li Is yet jet et unsolved u It that lu In the lie trees tre tho the total would b lit be i nearl nearly and amI as a we cannot that leave heaves can exert no so o the only theory at all Probable In lit that t the II IK liv III lug c el exert some sort Hurt of ot pumping action In III the wood th a tensile strength often orten fx cx x pounds pound p pem i In inch h steel plano scenic atom tu to be the strong cut rit known anti It tin valuable property 1 of I III u a very II high elastic limit rhe The ne new building material known u as n t In its made In mu a Ii factory near St SI Petersburg and of IO pow rl tiered red Jay Hand sund r and nd tin J ted lo together 1 hr at it a IL high Thu molten mass muan mu be he used like Iron ft fir r molded lu II an as will an as Tha Tue material can ran bu ho colored In a variety ut of had l may be or polished takes glaze gluz well und gives he a fOO good lull tull or tf colored marblo or other ut t umi tural stone it h lie he cost coat In large larce of or any desired f form turm rm It 11 IB is well wail adapted for tor architectural und iund artistic yielding such sudi products us liS hollow britka for Cor and fancy tancy brick tiles for and acid sidewalks and even cen thin hint or or ed for lor A novel process that IN is by Iw In I my I IH Ins 1 for lor quickly mellIn melt mell melting In log ing all any small portion uC or a tt I a K l of metal Such Stich an operation u is of KI cat Importance for tor Oll open openIng n big Ing the clogged tapping holes of or blunt blast furnaces The point In to be noted upon li is first t heated by hy the ox hydrogen n blowpipe or t arc and oxygen un under dec der high l J Is thrown a against It II Th The enormously high temperature thua generated at sit once th the sur surrounding ur roundIng The use tine or ot milk or of lime for foi quickly an and effective extinguishing In LOU coal coul mines I It is b h by Inspector tor lor Wolfgang Kummer u a Tho rho ID Ia not nol new acne but hut lots ban been teen new newly I tested with IUt lory The Tue which can b be used with hand or power pumpe Into Inlo ansi tills till the Iho cr cre Icel of ot the tho coal ui or mineral minerai A peculiar process for Cor InK particle like K gold ld ft leon tin sand and hat has been patented b 11 by I L T Velee Th The J Particles In mum mass II are rO elec electroplated Il iet with Iron b by A It opet lal ap ai and can thou then be lie by byan an my any magnetic unethical method Improvement of ot the olle h hue hH 11 the aim of recent K a In III Ih hd thu ultra a II new nili method or of illumination Humiliation gives Riven vl ity tu to Ii hs h heretofore outside or ot the line of or Bight stud Mild In the still later ultravIolet t ml ro roo the mode of t Illumination la Is a chirr chief The instrument u uses en lI light ht of ot a wavelength nth o of or the he th not by my ordinary lenses lemen I le is hO O The difference differ ence depends depend upon the tha of lenses lenI the of lit light being cadmium and the dl obtainable with IhK ha horl rays IB is 1 rr ic The naked It sees loti nothing through nuch such u it an n eyepiece containing a rt screen being nry to convert tIme the ray rayc anti and make nake visible a 11 picture of ot the object In iii green Kreen reen The rho fluorescent screen In lit only for tur however mind and th the nl re i lull suits are obtained by br ph photography hr the plates platen being very ry to 10 th the UIA rays raya from rom tIm the cadmium electrodes Tim The re reo ml differ much from those of ot liar mary mry Illumination luime some structures V lee fI In Ing ng penetrated by the cadmium r rays ray y while others other are not notA notA notA A rather unexpected danger In caT enil mines u un us also alen In other pacH ha hUH hue up nil paired In an English mine caine an In ordinary nary volt l power lamp proved roved to be bo capable of ot causing moke to 10 o rise rile within three minute when whey Im 1111 Imbedded betided bedded In and nf ot producing flame name within 34 J mInutes minute when hen bill co oh n nho Ih ho the top of ot CA t In nth other ther r nr M ii meats mente heat hM wa was generated nelll no ito tepidly that when whon the tho lamp was waa partly OH by the bulb buln exploded In foss minute at f O tIer dor F and at a II 10 point was wan begun In the Ih du iu r t rand tInd and Ind continued mot I sf t r tl ci lamp Careless laying down of or i rt t i l lIp imp 11 might start Mart a Ii tire quite unnoticed A steel of tIt special patented In n Germany orman by liy P F nil lor results rom from subjecting the molten nolten metal to 10 I a bloat of ot nitrogen V S |
