ôÈeÊteWëm You're Using Silicones Now
These materials were i n d u s t r i a l i n f a n t s five y e a r s a g o . T h e y have suddenly come of a g e . Even t h o s e of us w h o nursed them a l o n g are a m a z e d at h o w f a r t h e y h a v e a l r e a d y g o n e . T o d a y almost e v e r y b o d y benefits f r o m Silicones in his ev~ery d a y l i v i n g . For e x a m p l e , D o w Corning Silicones o r e now b e i n g used i n every n e w car «on the r o c a d , a n d in the automotive industry a n e v / material must justify its cost t o a f r a c t i o n of a c « n t by i n a r easing life or i m p r o v i n g performance. For Example: DC 200 F l u i d d a m p s vibrations of ammeters, gas gauges, sgoeedometesrs, to give y o u more accurate readings winter o r summer. For Example: DC 200 F l u i d m a k e s practical f o r the first time a viscous torsional vib> r a t i o n damper f o r automobiles and d i e s e l engine c r a n k s h a f t s , (DC Silicone Fluids have less tendemcy t o thin out at h i g h temperatures or t o thicken a * low t e m p e r a tures t h a n any o t h e r l i q u i d s usable f o r this purpose.) For Example: DC Silicone Fluid, a r a ingredient of many h e a v y d u t y motor oils, stops -foaming o f the oil in t h e crankcase, For Example: DC Silicone Fluid is u-sed t o prevent silking a n d flooding of some autosmotive finishes. For Example: D C Mold Release E m u l s i o n N o . 3 5 simplifies production a n d improves equality of t i r e s , mats, a n d other mechanical rubber parts. These Silicone Fluids a r & only one o f the forms in which DC Silicones are rra ade. M a n - y other automotive uses f o r DC Silicone's are u n d e r development — S i l a s t i c * for gaskets, Silicone G r e a s e s for p e r m a nent l u b r i c a t i o n , Silicone; Resins f o r - electrical insul a t i o n a n d for longer l a s t i n g p r o t e c t i v e coatings. Silicones have been in commercial production at Dow Corning f o r n e a r l y five y e a r s . They are b a s i c a l l y d i f f e r e n t materials and often give une x p e c t e d advantages thaat can be discovered only b y t r y i n g them. V / e h a v e helped p < i t them to w o r k a t a v a r i e t y o f îobs in Industries f nearly e v e r y k i n d . A d d i t i o n a l information a r a d engineering assistance are a v a i l a b l e . T e l e p h o n e the b r a n c h office nearest y o u or w r i t e for C a f - a l o g T-l-1 O. ^TRADEMARK FOR DOW CORNING SILICONE RUBBER
DOW C O R N I N G CORPORATION MIDLAND. MICHIGAN N e w York · Chicago · Cleveland · Los Angeles In Canada: Fiberglass Canada, L t d . , Toronto In England: Albright a n d Wilson, Ltd., London
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T h e direct use of iron ore for an application previously served b y pig iron has been 'ported by the Bureau of Mines (I.C. 7427). I t is for ship ballast. On the West Coast during t h e war the ship building boom created a large demand for ballast that could n o t be satisfied by t h e usual materials—pig iron and steel scrap. I t was found, however, t h a t magnetite fulfilled the requirements of weight for available space, and a b o u t 360,000 tons of the ore went into this use during the war. Although t h e specific gravity of the magnetite used was only 4.5 against a figure of 7.5 for pig iron, the* use of the latter leaves large spaces between ingots which cut down their total effective density. This is even more noticeable with steel scrap. Used in a concrete mix, either poured directly into the space or cast into close-fitting blocks, magnetite occupies little more room than t h a t required for pig i r o n ingots. C-2 cargo ships of 8,000 tons register for the United Kingdom, used in t h e North Atlantic invasions, required 3,000 long tons of ballast, Victory ships of 10,000 tons register, originallv designed as cargo carriers b u t converted to t r o o p transports, required 1,000 long tons of ballast. Near the end of the war, p i g iron ingots became available from new west coast production, but the use of magnetite was continued because it was more economical. It is estimated t h a t this substitution saved at least S2 million in Pacific coast shipping. Ships of the American President Line, now under construction, are using magnetite as ballast. Most of t h e ore used during the war came from deposits in California t h a t are not large enough to support blastfurnace operations. A little was sent from Nevada. Open pit mining was used, and ore shipments assayed better t h a n 6 2 % iron.
Ceie«iiaE Ânownaief A star t h a t apparently exists a n d glows w i t h o u t hydrogen, t h e usual "stellar fuel," has been reported by a n astronomer of the University of California a t Los Angeles, D . M. Popper. T h e star, which is the only o n e of i t s k i n d known in t h e universe, is H D 124448, a faint body near the constellation of L u p u s in the southern s k y . T o o faint to be seen with t h e naked eye, this s t a r has been photographed
with a spectroscope on several occasions between 1907 and 1947. N o n e of the plates indicate a hydrogen line. T o find a star without hydrogen, the m o s t a b u n d a n t element in other stars a n d in t h e universe a s a whole, is most disconcerting. I t h a s generally been considered t h a t hydrogen is fundament a l to t h e production of stellar energ}^ with its transmutation t o helium through the carbon-nitrogen cycle as one of t h e principal mechanisms. B u t here, apparently, is a star t h a t hasn't heard a b o u t this theory—or else i t is hiding its hydrogen. This is one of the possible explanations offered by D r . P o p p e r — t h a t it m a y be only a surface condition and t h a t there m a y be hydrogen inside. Another possibility, according to Dr. Popper, is t h a t the star may have been formed at a time and place when hydrogen was absent (!). Finally, he suggests that, the star may h a v e burned u p all its hydrogen. This would place it in its final stage of evolution in which gravity is the principal remaining source of energy. Dr. Gamow should hear a b o u t this.
Iraient The food value of beer has never been denied. In fact, physicians sometimes prescribe it for patients who need to gain weight. Of course, with prot r a c t e d use and upon certain people it is said t o have a tendency to add u n b e coming weight in t h e midsection. But w i t h o u t personal evidence this m i g h t b e considered as a rumor to be rejected until experienced. More concrete evidence has recently come to hand, however, which may give pause to those who lightly consider beer in no other terms t h a n as a pleasant beverage. I t ' s really potent stuff, according to a recent report from England. "After winning a prize a t t h e Sutton Grangers Club for growing a cucumber two feet long, granger W . Dowsing, 73, revealed t h a t he had fed it with beer barrel drainings."
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It might sometimes appear that coining a trade name for a new product is more trouble t h a n developing; the product itself. Sometimes trade names don't seem to fit their products a t all, yet others may be naturals. One of the latter has recently come to our attention. In fact it is disarmingly frank. A new disposable diaper which was developed by a research organization for a Chattanooga firm has been named Pee Wee.
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