Letters To Editor - Tesla On Wireless

Sunday, March 3, 1912
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The New York Tribune March 3, 1912 LETTERS T0 THE EDITOR TESLA ON WIRELESS. Electrical Inventor Thinks M arconi’a Planta I neficient. To the Editor ot The Tribune. Bl" In I0 far ss Wireless ert ls concerned there ll s vsst difference between the (rest inventor 'n‘°'*\“ A. Edlson snd rnysel!.,ln\»e¢~relly ln ua! rsvor. lr. Edlson knows llttle of the theory end Drsetloe of electrlesl vlbrstlons; I hevs, ln,tnls lDl¢|l| 3616. Probably more sxperienee than sn! °f my ¢°°l°\2\v0rsrles. Thst you ue not ss yet ehle to lmnsrt your wisdom by wlrelesi telephone to some subscriber ln eny other _pert of the world. however remote, end that the presses of your vs!- uable viper are not operated by wtreless power ls llrlely duo to your own ellort und those of some of your dllilnsulshed ‘eantreres at this cl¢7» and to the emclent usletsnce you have received from mi celebrated colleagues. Thames A. Edlson end Mlchsel l. Pupln_ ssslstent consulting wlreless en- Klnoers. But lt was sll welcome to me. Dlflloultf develops resource. The trensmlsslon scross the Atlsntlo wus not msde by sny device ol Mr. Marconfs, but bf mY lyslem of wireless trsnsmlsslon of enerfy. und X have already glven'notlce by cable to my lrlend Blr James De\’\'n.r und the rorsl lnltltutlon of thls tact. I shsll also request some emlnent man of sclenee to tnke careful note or the whole owl# rotus, lts mode of onerstlon. dlmenslons, llneer end electrical. all censtsnts snd uuslltotlve verform- ence, so us to mske posslhle lts exact reproductlon and 'a repetltlon of the experiments. This re¢l“¢'\ ls entlrcly lmpereonsl. 1 sm s. cltlsen of the Unltod States, und I know thst the time wlll come Wh!" my busy fellow cltlzens, too absorbed In commer- clnl pursults to thlnk of posterity, wlll honor my memory. A measurement of the tlme lnterval taken ln the passage of the slgnsl necessary to the full snd posltlve demonstretlon wlll show that the current crosses the ocean Wlth s mesa speed of $5.000 m1les a eecond. The Msrconl plsnts Are lnefllclent, snd do not lend themselves to the prscllcs of two discoveries of mlno, the "nrt of lndlvldusllzstlon." the! lDiKBl the message non-interfering end non-lntertereble, and the "etstlonary waves," whlch snnlhllute dls- tsnce absolutely und mske the whole earth equlvn- lenl to s conductor devold of reslsuncet WGN if not for Ml: deficiency. the number of words I minute could be tncreued st will by "individuel- txlng." You hsve slresdy commented upon' thls sdvsnoe ln terms whlch have caused me no smell sstonlsh- mont, tn vlew of your normsl sttltuds. The under lylng prlnclnle ls to cornhlue s. number of vtbrs- tlons. preferably sllghtly dlsnlsctd. to reduce further the danger of lnterlerence. sctlvs end pssslve, end to make the operstton of the recelver dependent on the co~opersLlve effect of s number of sttuned elements. Just to lllustrsts whst can D0 done. suppose thot only four vibrstlons were Iso- lsted on each trunsmltter, Lat those on one s1ds be respectively s. la, e snd d. Tnsn the 1ollow1nl lndlvidusllxed llnes would be sb, sc, ed, bc. bd. od. she, sbd. sod, bod end shed. The some srtlcle on the other olde will glve eleven slmllsr oomblnsuons, and both together twenty-two llnee. which een be slmultnneously operated. To trensmlt one thou- ssnd words s mlnute_ only forty-sl: words on ouch comblnstlon sre neoesssry. If the pleats were sultsble. not ton yesre, ss Edison thlnks. but ten hours would be necessary to nut thlsvtmprovement into prsctlce, To do thls. Marconi wlll hsvs to re- construct the plsnts, snd lt wlll then be observed thst the lndefstlgsble ltsllsn hss depsrtsd from unlvsrssl endneertng customs for the' fourth tlrne. New York. Oct. 24. l90'7. NIKOLA TEBLA.