Tiis San Francisco Sunday CalL ALL ABOARD FOR THE MOON! In a recent number of the Contem porary Review there appeared an article by Col. F. JV. Maude, of the British Army, disclosing the fact that there has been built in England a stupendous gun or projectile machine, invented by a Mr. Simpson, which by the utilization of certain electrical forces can throw a pro jectile an initial distance of 300 miles) With this startling fact in mind, Mr. Robert C. Auld, F. Z. S, revising editor of the American Supplement of the En cyclopedia Britannica, and contributor to the Encyclopedia Americana, etc; has prepared for the Herald the following article to show that the time may be comparatively near at hand when, with such an apparatus, it will be possible to throw a passenger carrying body similar in form to a naval torpedo so far beyond the influence of the earth's gravity that it must inevitably reach the nearest body in planetary space, viz., the moon. Robert C. Auld. F. Z. S. I>Ti6lnp editor of the American Supplement «f rh* Enerclopa«Mli* Britannic*. Special con tribator to Encyclopaedia Americana, etc. IS another of Jules Verne's fantastic dreams to come true? Is a messnge to the moon, once the visionary fan tasy of the author of "A Trip to the Moon." to come within the realm of science? For centuries the moon has furnished an endless subject of astro nomical conjecture. Only In recent years has it become a certain field of scientific exploration. Its volcanic cones and craters. Its dead river beds ar.d verd tireless mountains have all come within accurate geodetic survey. It Is only the intervening 239.000 miles of ether that separates It from the world that staggers the imagination of the scientist and layman alike, but If the claims of a London inventor, A. S. Simpson, are true, even that vast space may be traversed with assurance and safety. Mr. Simpson has Invented an electrical gun which he asserts will carry a projectile of 2,000 pounds at the rate of 20,000 feet a second for SOO miles. The actual test has not been made, but military authorities have indorsed the plans, and scien tists may rejoice. A gun with the propulsive power ot the Simpson Invention. having the muzzle velocity claimed for it, over rornes the chief hindrance to mortal In vasion of the moon. Hitherto the problem that has per plexed scientists has been to penetrate the zone of gravity that encompasses the earth for' a distance of some 150 miles. Once outside this atmospheric realm of gravity and air pressure the problem of reaching the moon, accord- Ing: to scientists, becomes less specu lative than In Jules Verne's time. It In well known that the celebrated ro mancer of science founded his stories on actual knowledge of the period in •which he lived. Scientific progress In the last 50 years has been great, but It sustains the French author's idea that the only feasible way of sending a message to the moon Is by firing a projectile from a huge gun. Jules V«rne used 400.000 pounds of nitroglycerin to explode his charge, the concussion being so great that 5,000,000 people who saw it fired were hurled to ths ground. Electricity has .altered the face and the character of the earth since then, co that the dangers of. con cussion may be eliminated. Jules Verne's grun was mythical; there was no propulsive power known at that time to science that would pro ject a missile beyond the zone of the earth's gravity. Only recently Pro fessor Ernest Crane Dodge, A. M.. has stated that "a body relieved of gravity would reach the moon in 10 days." HOW 'much faster would a projectile from ar. «.«jlarged Simpson gun,. a veritable lunar* cannon, accom plish the trip from the earth In the direction of the moon! A lunar cannon based on the-Simp *on plan could «axilx tourl Us projectile beyond the zone of the earth's gravity. Through the unknown vacuum, ether and air currents the projectile, which in its lunar course would be controlled by progressive, power, would be anjalr tlght chamber of the nature suggested by Jules Verne. The novelist had no actual parallel for his invention. To day we have its counterpart In the sub marine boat, and In such a car, equipped with every modern device of science for maintaining life, at least five scientists could make the trip in comfort and safety. The possibility that the force of the moon's gravity would be such that the scientists might never return to earth would not daunt , Intrepid men, who have undertaken most hazardous experiments in' polar and volcanic regions in the interest of the world's knowledge. Calculating by known ordnance and speculating by existent forces, the manufacture and the discharge of a lunar gun are not beyond the realm of reason. We have for a basis the 12 4nch gun, the accepted limit of an ef fective naval rifle. The 12-Inch gun will carry a projectile weighing 870 pounds a distance of six miles. The cost of this gun Is $60,000. To fire It requires 250 pounds of smokeless powder at SO cents a pound, or $200, the projectile Itself costing $500. A lunar gun of the Simpson type, large enough to hurl a - projectile through the zone of gravity, would need to be thousands .of times more powerful than the naval rifle. The amount of steel required in its manu facture would be greater than that used In the largest battleship in the world, and would be equal to that used in the Metropolitan Life building in Madison square. New York. In fact, the lunar sun required 'would be about the size of the Metropolitan building, which is more than 200 feet square and 700 feet high. The gun would cost $3,000,000, a paltry sum In these days to devote to such an experiment. The cost of firing the lunar gun would not be .great, in consideration of the results of such an exploit. The expenditure, if smokeless powder were used, would not exceed the .cost of eight volley broadsides of the entire ordnance of. 1,011 guns of Admiral Evans' fleet, a single broad side being estimated at $50,000, making the expenditure for the singie charge of the lunar gun $400,000 if smokeless powder we^e used, which, however, la not anticipated, as will be seen later. The recoil of a 50 ton gun would lift the Lusitania out of the water, which would render the discharge ; by explo sion of the lunar cannon of the size de scribed almost impossible, but, assum ing the correctness of the electrical ex plosive'power suggested. by Jne.Slmp son gun, . thst knotty feature of the problem is eMminated. " The explosive principle involved Is one that has been figure*", out and the. recpll .is; so dis tributed and confined that it imparts the full force of its carrying power to the. projectile, and therein- must lie the secret of the possibility of .a lunar, g6n that will hurl, a huge projectile car. of wrought steel beyond the 250 mile limit of the earth's gravity. •\u25a0 — ' '.' ' : The direction -of; tht projectile -once successfully launched Is a vital ele ment to control. In projecting a mis sile to hit an objective point on earth the parabolic curve must be calculated, but in fixing the moon as a target the missile would be fired altltudinously — in direct diametrical line away from the diametrical line of the earth. The matter of direction will solve itself mathematically, physically and mechanically. The force of projection being provided we have only to con sider the difficulties in the path of the projectile while traversing the un known oceans of jellylike ether. WHERE there Is no atmosphere there is a vacuum — as far as air is concerned, but'not iniso far as ether is concerned. But where there is a vacuum gravity at such a distance from earth loses Its place.' But grav ity is one thing and gravitation is an other. Gravitation is universal. It is a. mysterious, .unknown force that steers the stars in space in their courses, moving them through the am bient ether at the slow rate of 20 knots a second. The projectile once beyond earth's gravity, how it act? What analogy in nature have we for suppos ing that such a body so Intruded would conduct itself In an orderly manner in its course? Will the projectile sink or move through this ethereal jelly ocean without obstruction, while the earth, moon and stars are rushing through the ether at 100,04)0 feet per second? Gravitation is a thing not of earth, but really of ether itself. Gravitation depends on mass and motion, which would render the projectile actually under control by the laws of nature. The movement of the projectile is sim ply analogous to one of these falling or erratic stars, that result from "disrup tive explosion and which become visible only when being set ,on fire as they strike the tncLon eleaiunt oi tu«j atmosphere of tarth in falling. Ether"s movement, is directed in straight lines toward the spheres, so anything projected into it would swing into sucti Unts' of direction and would scour out Its courses in such paths un less controlled by -Inward energy. With a propulsive regenerative en ergy imparted to the projectile it can wend Its way through the thinner ether for an indefinite. 3pace, the resistances being lightened. It will iiroee*-«l 'jnder electrical control until it^apyroaches the realm of the moon, where gravity is much less than the earth, its gravity weight. or mass being one-sixth less. Reaching the moon, its energy exhaust ed, it would fall gently on peak or vale without creating much of a jar or Jolt. It Is assumed in relation to the move ment of the projectile that outside of the sphere of earth's gravity* it would be controlled or held in its course by a rudder and screw, which would be pro pelled by the electric energy of its dy namos. This" involves a new problem in electrical transmission; a -problem already in tlveway.of solution. Experi ments are in progress which* suggest the. probability of ; creating enormous electrical waves, generated by the force of Niagara. It Is the dream of. the in ventor to employ; these wireless waves In supplying electric -current at;. vast distances " by \u25a0 merely . tapping i the Lwave currents, g By j means of : a' huge Marconi transmitter ln«t a 1 lorl at Via era i-o .: alsn. trlcal energy from which is already carried 3,000 miles with success in telegraphy, the projectile car's dynamos could easily draw the necessary current - or propulsive power to direct its course through the ether, which of itself is a nonresistant to electrical energy. "When the truth, accidentally re vealed and experimentally confirmed,'' says Nikola Teßla, in referring to the wireless telenlione. which involves the principle of electric waves, "is finally realized that this planet, with all its appalling Immensity as to electric cur rents, is virtually no more than a small metal ball, there will be no such thing as distance- to disturb our peace of mind." The actual time required for passage of the projectile from the earth to the moon is conjectured, but it would surely be less than 10 days, which Is the time asserted by Professor Dodge in which an uncontrolled body, releas-v.l from the earth's gravity, would be able to cover the distance. TO reach the moon, then, on the ba sis of lunar ballistics, is merely a ' question^ for the mathematician, the electrician and the mechanical en gineer. It is a matter, of figures that will mark their v cabalistic calculations on the tablets of time as the old fel low proceeds to greater marvels / and more wisdom, which entitles us to spec ulate in detail according to the knowl edge we already have, at last. The powers of electricity mediumlzed by. ra- . diumating force will make ;thc prjpul siori of the huge '270 -ton projectile I silent, vibrationless, straightway to the moon. What- would the exact size of »his projectile be? 'To facilitate to the best advantage all known experimental science In the service of this trip to the moon , th« /projectile would be equipped like the submarine boat Octopus. Its; length would .be 100 feet and Its beam/ 12 feet.,: \u25a0 .- . . . : •• .\u25a0. \u25a0 ""\u25a0 , The cost of the projeVtile would be a trifle* less than $1,000,000. The weiEht of the. projectile would be 270 tons,- and it would' haver the complete median ical equipment; of a submarine. : ,Tlie* tanks ;whlch are used In a submarine to govern its buoyancy would serve the same purpose in the aerial . projectile, being filled with air. which would be released, according to the resistance en countered in' the projectile's inttfal flight- of 250 miles. Once hurled-.be yond: the gravity, zone of the earth it would encounter no gravitation to'ais' .ilace'its weight. -A. mountain or> a ,gnat become of equal weight, moving, In- ether at "the same speed -as .the' ; molecules that are; thrown off ; from the earth's .atmosphere, a speed of seven. miles an hour. The projectile. Its hood once closed, would' imprison the operating crew and the scientists in an airtight compartment. They vjould be thenceforth completely shut off from the world. X Would it be safe? '' l \u25a0 According to the cajjtain of a subma rine there would "no call for nervous ness." . There would be no* defects to fear in the. machinery, no rigging to strain, no sails to carry away, no boiler to burst, no fire to break, out. no con cern about the weather. Its electrical appliances would supply heat, light and propulsive power sufficient to keep it moving through space. A 75 horse power motor would be sufficient for this purpose. Electric stoves would cook a supply of food as well as any restaurant could provide. A reserve supply of compressed air would be car ried in flasks. Every 36 hours the foul air could be exhausted and renewed from the fresh p.\r flasks. In this way there would be room enough in the projectile to store enough compressed air to live 45 days. - There would be no startling sensa tions after the projectile had made Its first dive into space from the muzzle of the lunar cannon, excepting the new sights and surprising observations from" the portholes. But the first leap from the lunar cannon!; . . -. .- "\u25a0 - , , . A projectile from a 12 Inch rifle shoots. into the air at the rate of 30, 000' feet a second.. It would not be essential to the success of the lunar projectile's .flight to exceed the speed of a navy gun. for at that rate the lunar car would penetrat" . th«v.'v*-»Vs zone: of gravity In*' less than' an hour. A problem of prime importance -Is t.»c safety of the- car's passengers at the moment of the discharge of the lunar, gun. In view of- the nature and size of^the huge instrument the solution is not so difficult as it would seem. — r— HE construction , of the lunar gun I Itself gives It a character unlike any other piece of ordnance' in existence. .Of such a_ tremendous size, • the j gun would .necessarily be cast. in. parts. and built In" a" manner not dis similar to "the sections of. great'drain* : age tubes or iubway, structures. Enor mous electrical. cranes, such as are used in Panama} could 'easily., shift these sections upon\ steel scaffolding, .where they would be. riveted' and 'joined, much as fwere the segments of the 'Manhattan bridge over : the -East ? river, 0r ... • the "stories" of the. Singer. Dullding.; which was. 'made a compact structure;* 400 .feet in theYair by tiie e;ectric\ welding" ,of - Its' 'component-, parts.' \. The shell or. { case ..' of i the ' lunar i gun : ;once completed - it ' would be . reinforced '? by lenormous sheets of steel electrically welded, mak ing It at last one solid piece. of metal. Around this great tube of 700 feet in length would be wound endless miles of wire, thus forming it Into a sec tional dynamo of vast proportions and of hitherto undreamed of power. The gun itself would rest upon a gigantic carriage of heavy structural steel, so stayed and supported upon concrete caissons that its steadiness and accur acy of fire would be insured. As the wire that surrounds the gun would be perfectly insulated and store the el?c trie force that would "fire" the pro jectile, each magnetic section connected with a magnetic section inside, its final release into the first magnetic section would mark the second when the shot would occur. Thus the men In the pro jectile "car would not be subject to de struction by the force of concussion. They would only be called upon to pro vide shock absorbers for the initial mo ment of the turning on of the current Into the first section, the projectile gathering impetus as it traveled with Increased force along the bore of the gun. passing from section to section with increased rapidity. Heavy rubber air inflated cushions of varying resist ance would be employed to take up the force of the shock, and as the speed of the projectile for some distance would increase rather than diminish there would be no rebound. . ' .Scientists who have dwelt upon the thought of erecting a lunar gun and sending a projectile car to the moon have suggested that Central park would be an ld<-al spot for -the construction of such a great enterprise. . Let us then imagine the completion of all. the riiechanlsm for the project. The vast ol'ctrlcal energy of Niagara fells. or the entire plant of the subway, ele vated and surface roads, some . 200.00tX horsepower, would be turned Into the coil of the .lunar gun. The projectile car would be hoisted Into the breech of the gun. to Its 'place against the inner magazine, and astronomers and scien tists from all parts of the world would form a consulting board to alrri the gun so that Its car lir a 10 days' flight would land in the vicinity of the moon. Hundreds of thousands of people would be assembled from various parts of the \u25a0 world. \u25a0 What a thrill would be experienced and what a shout would go up when the bells of the city clanged and the whis tles of- the factories and steamers shrieked at the rocket signal . that the current .of 100,000.000 .voltage had been turned into the magnets of the lunar gun! ' -The -flight- of the projectile thioucrh the air,, ..would be so swift; that at^nrst the eyescould not follow.lt. then hs It swam off gracefully through space the eyes of ; every. 1 man. woman and chiM of -the earth would: seek to folly w iiu for: through spectatoriums it would bo TipuEsr OF THE AIR 1 ASSURED j NOW FOR INTER PIANETARY SPACE \u25a0 possible to watch the progress of th«> projectile, car. The great telescopes erected upon the highest peaks of the Andes and the Himalayas would f'>l:r.\v the course of the projectile as It y:\3seil In Its speedway through the attt>:'U ated. jellylike sea of ether, and all the time the wireless stations at ..v'ics bay. on the Eiffel tower and at va.r!ou."J points of the earth would be g:»-in>j back the message to man of hl^ triumph over space and perhaps the secret of the universe. If Professor Dodge is to be believed the darinjr scientists, upon reaching tl>.« surface of the moon, would not <\u25a0.> to their doom, but to a new existeno*, where they could communicate with the earth and perhaps arrange su?-.3t- quent trips divested of even the i!anse»"3 they encountered. "Men could abide 'ort thp moon for <> time." says Professor Dodgp. ' in thlc'.c walled, airtight houses, and rould wa'k out of doors in airtight divers* Molts. Scientists would find in thr wastes a fresh field for exploration. Astronomers could plant their telescopes there. fr«« from their most serious hindrance, the earth's atmosphere. Tourists of »h«; wealthy and adventurous class would not fail to visit the satellite, and !i im probable there are veins of precfotti metals, beds of diamond? and an abun dance of sulphur in a world of so high ly volcanic a character." "Let us suppose we arrive on these savage volcanic steppes of the moon about the middle of the day." says the celebrated" French astronomer. Camllle Flammarlon; "from the black horizon shoot »apid arrows of solar light, which strike the summits of the moon moun tains, while the plains and valleys re main In darkness. The light increase* slowly- .While with us in the central latitudes the sun takes but two minutes and a quarter to rise, on th* moon It takes nearly an hour, and consequent ly the light which it sends is very fee ble for several minutes and only In creases with extreme slowness. "The inhabitants of the lower hem!-. sphere turned toward our earth admire' In their sky a brilliant body, hawing a diameter about four timps greater than that of the moon se»n from our globe, and with a surface tf times larger. This body, which la the earth. Is the moon of tbe moon.* • "It soars motionless in th« sky. The inhabitants of the center ot the visible hemisphere see It almost constantly In their zenith. Its light diminishes with the distance of the country from this central point, up to the limit of this hemisphere, where they see- our world placed like an enor mous disk on the mountains. Beyond that they see us no more. "The scientists of the moo.n hay« probably proved In the most categor!-' cal manner to the Ignorant who sur-' round them that the. earth, not being habitable, should not be Inhabited, and that It .is made, solely to serve as a clock to the moon and to shine during the night." ; . ' .1 ;'; Alluring speculations that must some*. day. If man ever accomplishes the lon^" dreamed -of . trip to the tugua.; oe brought Into the realm of exact science and not on the pages ot astronomical !?«•, .. '^ • ; -\u25a0-\u25a0 -\u25a0 • -"' ;vi ,