. Tribune popular science . i • w!i >l • siipplv (.f that coal which we look at , hut which Wi> a TO consuming at suchHI a- t mi in ::,i 11 4,ci:i years hence there can beI- :• , ; 1 • .I ) iiit the coal bo exhausted upon the«• ii ih. Tin: SPOTS. have tn con-idi-r what t ho telescope andother imtru mem- of ^-arrh tell us ahout the have si-i-n its si/e, its mass, what a wonderfulnmniint of liLlit and heat it .rives; and now we haveto ciHiMh-r what the telescope tells us. J need notP> over i he >,-[-i a of researches by which t
. Tribune popular science . i • w!i >l • siipplv (.f that coal which we look at , hut which Wi> a TO consuming at suchHI a- t mi in ::,i 11 4,ci:i years hence there can beI- :• , ; 1 • .I ) iiit the coal bo exhausted upon the«• ii ih. Tin: SPOTS. have tn con-idi-r what t ho telescope andother imtru mem- of ^-arrh tell us ahout the have si-i-n its si/e, its mass, what a wonderfulnmniint of liLlit and heat it .rives; and now we haveto ciHiMh-r what the telescope tells us. J need notP> over i he >,-[-i a of researches by which the aspectof t h • -mi ha> ln-en studied ; but I will only remarkthat if i ;alil:-o and t IP- ut In who studied the sun—Jf th:-y had hut known, a-i we know, how much weowe to tin- sun—the\ would with a hundred-fold de-gl nf have studied that wonderful ; ihe In-iriniiiiiir of their research they found thoBuns surface marked from t line to time with largespots, which will now be shown you. u, A IT i \u \vri-: p TIU: I • o «r rt from > |r. i :r-- r,f tlir mm »• m«n |.» in na tho rtnrof ;,,,., ,„ l-,7r- • iv • of • i« «on *p»H :n, I | i whirh I »liuuld have been very glad to have suspended all tto timefor you, but 1 found the size of the screenwould not permit me. You will have the diagramsone by one before you, interspersed with lanternviews, which by tho kindness of Prof. Morton I canexhibit to you. By the first I will show you thegeneral aspect of the suu, the way the sun appearjwith its various spots. That diagram now beforeyou has been taken at tho Cambridge ObservatoryIt ia a photographic picture of the sun. There arefour such pictures, and they show you the differentappearances of the sun. Sometimes there are a fewspots; at others more; at others two zones appearto be strewn with spots. It was discovered early that thess spots aroactually attached to the surface of tho sun, thatthey are carried round, that
Size: 1590px × 1571px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1874
