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... , Sir Robert Boyle (1627-1691) discovered secrets rather in the manner of Newton. Newton interpreted the reason why an apple falls when dropped, whereas Boyle found out that the pressure of an enclosed gas varies inversely as its volume, which is Greek to many people, but not to us. Boyle's Law has been applied to a pressure control valve which is not only Infinitely Variable within the ...

... . FORESIGHT The march of Science, its tempo quick ened by the needs oj war, goes inexorably on making some things obsolete and joreshadowing new developments in the utilisation oj electricity. The House of Philips, as always during its fifty years oj progress, is ever looking ahead to the requirements oj tomorrow. I PHILIPS PHILIPS INCANDESCENT DISCHARGE LAMPS FLUORESCENT LIGHTING RADIO ...

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... Last Straw AS the pace of production quickens, the care-laden manufacturer must often feel like a camel con templating the approach of the last straw. Can his oft-revised schedule carry yet another complication? Can he increase out-put still further without some impairment of quality? The Simmonds products were designed to solve precisely this problem, and solving it they are, all over the ...

... -but for YOU! TIME MARCHES ON. Most of our men in enemj priBon camps have now entered their FOURTH YEAR in captivity, and are suffering badly fron the Btraln and monotony of prolonged confinement Wo beg all readers of THE SPHERE to help us li our work of cheering these men. Each parcel w( send 1b Individually packed and addressed, anc will give enormous pleasure to some l°neU prisoner who ...

... all correct ami all complete R.A.F. Jacket and Trousers, from £11 .12 .6 W.A.A.F Jacket and Skirt, from £11 .2 .6 and everything that goes with uniforms OF REGENT STREET AND PRINCIPAL CITIES Telephone Regent 6789 ...

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