Arizona republican., 1900-08-29
THE MOON IS NOT COLD
Scientists Say It Is So Hot We Could
 Not Live on It.

Astronomers and scientists now tell Us that the old, popular Idsa of the moon being d frgid body is q mistake. On the contrary they declare that the earths satellite is an intensely h.t body; su hot. in fact, that life as it is known on the earth. could not exist there. The moon is so hot" says an official of the United States Naval observatory, that no creature known to us could endure contact with her sur face and live. Nor is this fact difficult t. realize when we have reflected lit tie while. For ins anOe. We know that the surface Of the moon is exposed dur Ing tine long lunar day, d fortnight of our terrestrial time. to the rays of al sun fnlly as hot as that which gives Us our daily heat With no atmosphere 60 temper these Gays-n0t by imp aGing their passage, but by bearing aloft the cloud Veil which the sun raises from eur oceans 70 form a protecting car9py for us-the surface of the moon must nee essarily become intensely hot even be fore the middle of the lunar day.
 Tt is true that the ahsenc. of an at moSphere must cause ithe moons heat 10 be rapidly TaGia,ed away into space It ts UT atmosphere which retains our sat and acts in gulating our .emper- ature. Thu at the summits of l1fty muuG,ains, where the atmosphere .s rare. notwithstanding the intense heat of midday. SD rapidly does the heat pass away that the snow forever crowns the mountain heights. Yet. ai- though the moons heat must pass a -;ay even more rapidly. this does not pre- vent the heating If ',he actual surfac, of that satellite any m re than the rar- ity of the air pr vents the Alpine tray eler from feeling the action or the suns direct heat, even when the air in shad- ow is icily cold
 sir John Hirschcl long since pointed out that he moons surface must be heated at lunar midday-or, rather at the time of lunar mid-heat, correspond ing to about o'clock in our afternoon to q degree probably surpassing the heat of boiling water.
 Not alone does the moon its-lf pos sess this extreme heat. bu, it reflects q certain amount thereof upon the earth. and this is not all; the moon gives out heat by which it has itself been warmed Nor must these two effects of reflected and radiated heat be confounded. The distinction between them may be H. lustrated in the following manner: If on a bright summer cay We take a piece of smooth, but not too well polished metal. and by means of it reflect the suns light upon the face. a sensation of heat will be experienced which is re- fiected sun heat; bul if we wait. while still holding the metal as described. until 1t has become quite hot under the solar rays, We feel sensation of heat from the mere proximity of the plate to the face. even when it is held so as not to retlec; sun heat. There can be pro Guced by this experiment. first. reflect ed heat alone. before the metal has grown hot; next. tin heat which the metal gives out itself when warmed by the suns rays; and lastly, the two kinds of heat together. when the metal is caused to reflect sun heat, and also, (beinG hrId near the surface), to give cut q perceptible quantity of it's own warmth. IL is the last stage of the ex- pertinent which produces the same ef- feet as the reflected and radfated heat of th, moon upon the erath's surface
 'BCt We must 10 think that the moon adds ma terially to the heat of the pres ent weather. The actual increase of tampera iure derived from the silvery orb can be easily realized when we con sider .;har if the moon was exactly as hot h fling water We should receive from it just as much heat as would be derivcd from a small globe as hot az boiling water. so placed as to preserv the same ra-io Cf size and distance as the moon does u '.he ear. h."-Was shing- ton Times.