Show tilt THE AURORA A ainge cinge or if Es hemmy jot the known ob as the aurora bumis borealis bo did loan been greatly admired la in every age of ot ili iho I 1 joriu the strangeness of it ac 5 appear once nod the ot of it iti file all ho terrestrial pbs a not only excited the iho V antler a of f the multitude but bul ilia meet lakile lok clung powers of nil age KC to the iho gallon of its cause a lod find the ibo adal flee new cw too halley hallcy dalton arago doubt I 1 I 1 do c la alvo Br awtar uma ballo and anoda its iti ardent investigators but the true catuso of its appearance it just hg as as it WM in iho da of nohh some attrib ate it lo 10 orlgia dmd some omi to magnetic bail and ill all can sea ce that it la is caused by or lo in tho the electric rod and magnetic magne to powers ol of the earth and but bul AS to rod low how evolved they have haro nothing to 10 SAY ear even amodio the abo living great french nit hoo 86 stupendous scientific volumes are DOW laio into our and AS stands r 5 obliged to speak peak ol of it in 1 I 1 he be ace gula cent phenomenon known kaona AS tho the polar furors which to seen to 10 lilt all it beauty io in ilia northern grid southern regions of our cur glola is ia DOW no DO longer a matter or of doubt doubt that there exists a relationship tins this luminous phenomenon and terree trial that la Is between ibo production or of the furors borealis and the variations of uio the electric currents which atch intersect oler wt the earth forces of mature NII pana page now I 1 mk ask ou nailer ia this ibin a be wry lory explanation I 1 la Is terrestrial in mag tag and the electric current that intersect the ihu earth no bod and the mama amo thing and what are cur rents that intersect ilia earthy V I 1 aleh the gentleman n would tell for no DO other man maji knows know anything about titan but let him wit arago established by exact oboe ovations of ne certain raisin perturbations of the magnetic needle with willa appear saw rulo or of the A magnolfi magnall cent experiment of SI 31 0 do o Is rivo rive has hail placed beyond doubt the electrical or magnetic nature or of the aurora it Is A pity ptsy our author cannot tell Us ui which bally and think that ahat the iho aurora aro are streams dreama or of magnetic cullu tilt from the ibo poles poke sod even an electricity could bo be raised raided to ills intensity sod add ol of a lumi unit gout but DO 00 strident ment hm ban tt yet proved that a magnetic curre correct dt can be me do prof youn yoong 91 of america AmT icat thinks that the non DOD in intimately connected v still ali electro magnetism and ascribes the light of llie ilia aurora to tho the illuminated agency of electricity upon the mir mag litlo Bub I 1 admit abla a lap io advance sad and burritt Burri lt with other late lalo authors su astalos us him in ID this but as the ibo cause or of the aurora to in not DO demon demoa at nil hit theme theao may still bo be considered me as la go the iho region of turo turn and what duca does so no mesa by magnetic substance A writer la the iho supplement to the american october MILL 1890 1830 gives the view of present philosophers philosopher in with till regard to the cause of the aurora lu in a very clear iio sign butts bates it to electricity gea ad in the iho clr top ions or of tho the globe wag oz ex cited A by it tho friction oelno of the air against alast the surface of the earth thus thua forming boj on accumulating ascend to t the he rarefied sit above the aurora Is in I 1 admit of an electro magnetic origin and must be caused by a to in the ibo equilibrium of the electricity of the atmosphere but the luca duca not dot como come from redundant electricity generated about the terrestrial poles polca I 1 clow bad ire from in there to the upper regions or of thu ihu air as non DOA brieve iHli cre but taht it comes from the outs do even from the one aua and that electric corois to ID the sun aro are the original cause of storms ia it the be ili cinc and aad arm a ot t abc bec earth artial i nod thrift ilia la am tile abo upper regions of the atmosphere which wo call aurora bore borc bar arc noi by or lee im sw aco coding from fram below but hy fly fiu twant 1 cio 1 it frum tuo too pao a aim evidence n cc mayow gathered I 1 cow the ibo actions of astron cabor 1331 guilfour our stem art in his bis woo WOD mines lecture ilia iho sun and earth delivered lu in 1 1972 ij 72 la in ter 1 explains to us u from sulli cutic iu how our depends on m he sun not only for its I 1 light and beat but aa tilt for fi icily uc ile blind to id the spots that ill I 1 tare aro can oil the sun aud and the great dil urbanc seen oo on big surface during their forms which ho he calls call feun bun storms horma new ow ba as a he be at aa two AS one of theme storms brcak out on OD tho the sun un the equilibrium of 0 the electricity 1 I t our world la Is InA instantly antly broken a magnetic magno ilc and ad sit attic storm norm to 1 directly felt well another nations fact Is fi t big whence whenever lr the iho cartti carth la Is greatly disturb cilas od aj a magnet yoa yea bavo great out ol 01 tho aurora Ilare arcalia alls I 1 told ou oil that lost loot year car wo we had a great many ban spots and s gnat an mouy 4 u dis dio mocca 0 of f tho the magg magnet a ig mid 3 0 ou ty will w ill hear bear me die out when I 1 say my that thai no HO had a great tall many my appearances or of the all aurora ore ca borcalli bor ca callB its such aro am the accounts acco oala given ivan by ob citan fervors sod they ca can bo be cd ebol cicil to pro prove 0 that the iho electric ones drice which cau the aurora borealis boreali fl to 10 appear in our sky ky can never occur except when thero to la an aa electric storm in the sun above tactics the redundant current that causes the aurora mutt must como come from blaut soared and not net alicner led around abo be polo of the earth by ilia ibo friction of ibo for then there won would I 1 d bo be no for or the aurora to havo ody any dependence on so 0 o let lar storms wo know that taftt out our atmosphere in 10 it ft powerful insulator of electricity the strongest currL DIs that exert their power pow t to tn pau pass through it out ous resistance to their passage the it perls arl of thunder and the destructive power ol of thunderbolts are arc nothing but results of ibis atmospheric resistance to tho the electric spark do the over gaining cur rouLe that disturb the he suns I 1 arrival at our athoe I 1 photo phero cod na an barrica io in their effort to lo roach reach ibis conductive globe I 1 alacy are bold beld back by this metal envelope and 69 late la a the ibo very refilled air above but tho the insulation power of the aimola phere is i touch over oter anio some parts or of the arill than others otti cre those parts otho earth most moat expensed to lo the strong ri of nt the iho boo ua produce ft a greater am andt or of evaporation to lo abail io in ibo atmosphere the Is higher h iho he air more light itil and motor latura bixio 1 s led with aqueous the them arc the ibe part the equator or farthest from froia the VOTES now new veto Toi ruing to io my to i low bow that ilia iho absurdity or of the present apted theory of tho the aurora to lo flocculates become evident for the ibo cold still till nail ami exceedingly deam ol of alio llio lie polar regions re filon hall bu to much power lu AS to lo bo be considered ira 1111 L fur f electricity to either second I 1 or descend very far through it so 0 o the be uvona thu 1 I bout alio a Mr urfa fc coot th be annb and ibo bg positive vo in Thera alio llio rifled space pace above save meant rally bat cm cast creep from show uio the clouds by aqueous vapor bir wm win also alo ILL by his bis he bo saw that the ibo electric current of tilt forth la it negative bad and is ij boat trick by the ibo at ai ta ibe idular arma lure of the leydma jr jar the ho our butts arni aturo being la Is thu the fridd aira air A the r regions ill thu low lower r dem buaer betl train or bich allag f liag an or barrier cco two wet bad add consequently ill asido is ft a neutral envelope 0 a the of 0 bu BO agency in io abe production Product iou of the ho aurora bior bills brin lia jiow ibe electricity of F eky Y a wal ix bog positive and that or of th callb below negative tiny they are generally la hild ld in ID a khlat basic c of ill tar turn but when the ali p etive above it disturbed ty by extra outward currents curr cof AS the tat great salinity for etch each ill the upper mio ollies gigantic i glofus to lo break through the it 6 barrier 0 1 o tisch the ibo loo cr me and PC the equilibrium but bill eaid a peu a go Is n li 1 taw t tho caugh eiith r in the ito middle amstone or of the globe uti do the lupo huou elect electricity city MI can nol ri it keeps crowding bt bat bering ni finally by y art 1 frici bries I 1 they aci enciu I 1 evlo u giuy ilo la go clooj but bul la in the ho refilled ear uti we trio trie light Is not in tile tho fenn or of sparks awo IN a say bay it is la in tho the lower regions region nor la in camets properly but bul in n lu minous disbar diK bar similar to what wo we coil sheet lightning in light clouds at high the fravala attle adge C x Pe to befit gives A mt mg 13 duio ufa account of the ibo building or of tuc lue hu all vote ron by stop elop to lo its in alual splendor pT idor thus some ibo aurora bufort are sim aim pin diff leblo or luminous abst hc lt sometimes agitated rays ray or of brilliant h it which pmj a A over to ano 0 whole amren P clr I 1 stalling from the iho horizon as A jf IS an ieves blo pencil over tho the celestial vaulti a cleater or of r ra eye starts ibran out fao fan like then gets fainter dad aad but the aurora li in continued at polut point all the luminous displays are anro struggled of the L 10 the ibo forma forini tion of the ibo great arci dome of the iho aurora anti can caa bo be experimentally made b by the lio induction coil rf ct a be through 11 vacuum tuba it ir the discharge in ii made through common s air IT 1 it 11 cauca pauca sacs in ID the ibo form ot at a dense end b t park like that in out our common lightning sad and produces a very tiry audible report ban the abo die d charge through thrilled air tho the discharging distance is 19 and by verifying mi the iho air ir tho the discharge may be caused to lo pass silently it ft then fills the tube lube through fib wh which he I 1 it t with a rosy rony tyndall dAlla a notes on electricity noe NOB the performance I 1 bal shall de dc scribes crib is the forro formation atlon or of what hat i Is called the ibe disloyal dec are brevet a nod ad bin big companions will n help us u out la in thin tho the great or the aurora in farming the are arc la abua described by ami them GnIt hm draperies goat float over the ibo heads beads of tho the spectAtor a folding over each other to la a thousands ibo auada ways and undulate as if tho the anti agitated them generally a la calumet arc am Is fa spread towards the north one ODO black eat ca it from the horizon 6 wd by its fu deep color with the iho are of brilliant brif liBat white while or red which dart tat oat its rays IQ in this description thus is as a series of phenomena which call fur for lion lima first farst ilow how the be furor I 1 bucall jobity cornea comes to form arches it la Is bo be call they are made in loft a very ra rifled air describes it il to ia this ahr beautiful manner or light reaching oer the het aven from 1 ciet I to or I 1 sometimes remain ing fog stationary to W and rooting moving slowly lowly sunlit south t 1 next bo be answers my question thus some oroa of iIII my macca hare noticed that at when the current from a powerful induction coil wu byln sent through the so call called ed vacuum lubas which are real ly tubes filled with willi ra rifled gas fim a ten dancy I 1 or formation or of burloe trio in VEM observe lilo him with special app cheso can bo obtained with A perfect anti uniformity looking like a arow placid placed at regular ono one la in treat of the ibo other and can bo 10 made to create stationary elation ary or move aim ly or rapidly along tho the tubo tube by altering iba be it electric F in resistance of tho the current on ant atu so aro are to the arches in the aurora for the arches ad they appear to lo us are in ID reality circles concentric with the iho magnetic polo pole but bat to understand the position in ID which the arches ambes stand lo 10 mah till respect reaped to tho the polo pole wo we must ceafer to Br brauais Bra vAiR avais experiment see forces of nature page be ed that they could lo he am clicc let lar rings in perspective having their centers on the radius of the earth tit dl rectal towards the iho magnetic pole arid and the their a r plane place perpendicular to lo that tic rn din ciui IT iio moreover concluded bat the height of tho the rings plicate the iho tur our anee of the ibo earth it 11 comprised between niety fand miles mile so eo that abot plan pho occur in the ho regions dalr the eimke limits or of the them observers say bay that several arches aro are often wen at the mine mime time limo io in high latitudes with perfect cod uniformity like a row of d isles placed at regular intervals one la in front of the other they cannot app apply 1 abc L A have law to their forms cyb aloo but 8 aay the they I 1 arc to moving slowly towards the gout we have that the aurora Is s never made la in much bach a grand display except when there is ia a magnetic storm to lo operation operatic a now kow in a magnetic storm or suit storm mi as it t really la is no not 0 biily ly clec ricely apper koloj in to ibo upper regions ot or the air I 1 but also en accumulates at tho the poles pole rf of the earth disturbing its oft elec trio currents cor rcola and flowing out to ID its 14 magnetic cory for the atmosphere I 1 la a no DO insulator to a magat magoc t lic to current belth er r is the toe of the earth w chero here clec rocity must accumulate at eldda saw anco to its passage through fl a block of marble I 1 ahio V bla the nuri rat arc archa lacis aro are formed to io the ibo regions region above the poles polca the iho magnetic fluid pours poura la in from the iho direction of the magac tic curva corca for octant aro am cal called magnetic mag atice curra curras fire wen seen straight lines him in a tho the dirce iVon of the ibo magnetic axia so 30 the electric arcs are about thu poles as the enec ores of cometa aro are about the nucleus one oie after afler r in regular at s above described ilia beat ones ascending and spreading out on the sky iky while others othera are arc evoly ing and as they aro are only segments of circles on oa each side bide ot of the atmosphere aad seen by us only on this upper side bide so 0 o the iho northern arches arreca in spreading seem to us ui to bo be moving towards tho the bouth tho the next adrance alrance phenomenon to lo tho the above of the aurora arc I 1 la Is tho the black segment that it from tho the bori bordeon n which ayes tay says contrast by lu its dop doell color with w lib the arc A brilliant whito white or red which darts darta out ira if rays la in the case of tho the secure borealis boreal 1110 north polo of the earth I 1 IB s lc a re mir polo pole and la in the iho regi or of alit polo la Is tho the dark space observed to la fuel fact it Is ia lug moro than tho lie lead inu nathly portion or A tho the air below and BB as I 1 showed that no electricity can piano through agis it from above the bright arc chich would be a circle lukat top step at it if aud and be broken u up here ilia insulation commences and n pd thus has a dark must muni at ao it frow from the horizon am J beavais Brav alii says aya so 0 o each are arc is ial in two seg see DOC and the ibo other below the insulating luul aling atmospheric this proves my theory true beyond calr ottoo and the theory of the great 51 plant who bo bal dieves that lust in ID abc aurora iho |