. Official proceedings . - rapidly, so that there are five or sixhundred trillion waves or vibrations in each second of all this space these vibrations, unchanged, have beencoming toward us for ten thousand years. At last they reachus, enter our telescope, and beat for a few hours on the silver 51. A beautiful spiral. Our Milky Way is perhaps shaped Uke one of thesespirals, round, flat, and thin, perhaps 30,000 light-years across. Manyastronomers think that when we look at such a spiral we are really lookingat another Milky Way, made up, like our own, of perhaps a billionstars, but
. Official proceedings . - rapidly, so that there are five or sixhundred trillion waves or vibrations in each second of all this space these vibrations, unchanged, have beencoming toward us for ten thousand years. At last they reachus, enter our telescope, and beat for a few hours on the silver 51. A beautiful spiral. Our Milky Way is perhaps shaped Uke one of thesespirals, round, flat, and thin, perhaps 30,000 light-years across. Manyastronomers think that when we look at such a spiral we are really lookingat another Milky Way, made up, like our own, of perhaps a billionstars, but so far away that we can not see the separate stars This maythen be 500,000 light-years away from us. grains imprisoned in the emulsion of our photographic do something, just what we dont know, to those silvergrains; we develop the picture, and find the portrait of a halfmillion suns as they were ten thousand years ago. Modernmagic! I said earlier that our sun was an average star. Let us fol-low out that thought as we look at a picture of the Milky little points of light are all suns. How much do weamount to? Well, how much difiference will it make to thosehalf million stars if I add one more? How much if I should 52 destroy or take a\va> oiu- Mm of that Iialf million? just (Jii
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