 | Edmund Burke - 1870 - 712 pagine
...most difficult to obtain. In the ordinary process of photometry the standard used is a candle, defined by Act of Parliament as a " sperm candle of six to the pound, burning at a rate of 120 grains per hour :" hence the meaning of such terms as " 12-candle gas," " 14-candle gas."... | |
 | Edmund Burke - 1869 - 652 pagine
...In ordinary photometry the standard used is a candle, defined by Act of Parliament (!) as a " sperm of six to the pound, burning at the rate of 120 grains per hour." The performance of euch a rude test could hardly be but, what it generally was, fallacious ; for candles,... | |
 | 1877 - 588 pagine
...the uninitiated that the standard sperm candle with which the gas is compared is one defined in the Act of Parliament as a " sperm candle of six to the pound, burning at the rate of 120 grs. per hour." I will first of all give the results of the testing of argand burners. The argand burner... | |
 | 1876 - 630 pagine
...uninitiated that the standard sperm candle with which the gas is compared is one defined in the АЛ of Parliament as a " sperm candle of six to the pound, burning at the rate of 120 grs. per hour." I will first of all give the results of the testing of argand burners. The argand burner... | |
 | Institution of Civil Engineers (Great Britain) - 1876 - 374 pagine
...lamp or candle. In England, since the year 1852, the parliamentary standard of comparison has been a sperm candle, of six to the pound, burning at the rate of 120 grains per hour. As the result of an elaborate series of experiments conducted by Professors Graham, Brande, JT Cooper,... | |
 | Institution of Civil Engineers (Great Britain) - 1869 - 746 pagine
...centre. Attention is particularly directed to the fact, that although the standard candle is fixed by Act of Parliament, as a sperm candle of six to the pound, burning uniformly at the rate of 120 grains per hour, yet no such candle is to be obtained ; for from various... | |
 | Royal Society (Great Britain) - 1869 - 674 pagine
...process of photometry the standard used is a candle, defined by Act of Parliament as a " sperm-candle of six to the pound, burning at the rate of 120 grains...account of the difficulties which stand in the way of Luminous Intensity of Light. 361 obtaining uniform results with the Act-of-Parliament candle. A... | |
 | William Somerville Orr - 1856 - 596 pagine
...the standard which is specified in most of the Acts of Parliament relating to the subject, is a wax candle of six to the pound, burning at the rate of 120 grains per hour. In general, however, it is found that there are more irregularities with the combustion of wax than... | |
 | 1876 - 298 pagine
...the uninitiated that the standard sperm candle with which the gas is compared is one defined in the Act of Parliament as a " sperm candle of six to the pound, burning at the rate of 120 grs. per hour." I will first of all give the results of the testing of argand burners. The argand burner... | |
 | 1866 - 638 pagine
...just one-seventh greater than that of wax. At present, the standard flame in this country is a sperm of six to the pound, burning at the rate of 120 grains per hour. But for some time past this standard has also become uncertain — first, because there has been great... | |
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In the ordinary process of photometry the standard used is a candle, denned by Act of Parliament as a "sperm candle of six to the pound, burning at the rate of 120 grains per hour. 
