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acid action adjustable Algiers amount apparatus appears applied arrangement attraction body boiler bottom cast cause cent centre City City of N. Y. Claim-The coal color combination connected constructed cylinder described diameter direction effect engine equal experiments fact fall feet fire force frame furnace give given glass greater heat improvement inches increased iron John lead length less lever light machine manner manufacture Mass material matter means mechanical metal motion nearly observed obtained Ohio operating pass patented Penna Philadelphia piece pipe placed plate portion position present pressure produced quantity range resistance shaft side space spring square steam stone stroke surface taken temperature tion tube valve vapor vessel weight wheel whole wire York
Page 395 - Table of the corrections for temperature to reduce observations to 32° Fahrenheit for Barometers with brass scales extending from the cistern to the top of the mercurial column.
Page 21 - Let us now consider, for a little while, how wonderfully we stand upon this world. Here it is we are born, bred, and live, and yet we view these things with an almost 'entire absence of wonder to ourselves respecting the way in which all this happens. So small, indeed, is our wonder, that we are never taken by surprise...
Page 64 - ... occurred in vertical planes, splitting up the specimen in all directions; cracks were noticed to form some time before the specimen finally gave way ; then these rapidly increased in number, splitting the glass into innumerable irregular prisms of the same height as the cube; finally, these bent or broke, and the pressure, no longer bedded on a firm surface, destroyed the specimen.
Page 334 - The modulus of the elasticity of any substance is a column of the same substance, capable of producing a pressure on its base which is to the weight causing a certain degree of compression, as the length of the substance is to the diminution of its length.
Page 141 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Page 351 - ... effect. The best way of preparing a solution of minimum strength is as follows : — A concentrated neutral solution of tungstate of soda is diluted with water to 28° Twaddle, and then mixed with three per cent, of phosphate of soda. This solution was found to keep and to answer well ; it has been introduced into Her Majesty's laundry, where it is constuntly being used.
Page 193 - ... which was retained in the vessel and assisted in purifying the metal. The increase of temperature which the metal underwent, and which seemed so disproportionate to the quantity of carbon and iron consumed, was doubtless owing to the favourable circumstances under which combustion took place.
Page 270 - By proper mechanical arrangemi-ills this cylinder could be revolved, and the part which was at one instant within, rapidly brought to the outside, and observed by the audience. As the cylinder could be made to revolve 300 times in a second, and as the twentieth part of a revolution was enough to bring a sufficient portion of the cylinder to the outside, it is evident that a phosphorescent effect which would last only the l-3000th or even the l-6000th of a second might be made apparent.