Word: lamps
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Dates: during 1880-1889
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...SALE.- A Singer Safety Bicycle, (1889), lamp and baggage carrier; been used two weeks. Apply 746 Cambridge street...
...were also shown, giving altogether a most clear and satisfactory idea of the city. Pisa is situated on the Arno nearer the sea. The city is noted for a group of buildings surrounding the Duomo, or cathedral, which dates from the eleventh century. In this church is the identical lamp from whose movements Galileo deduced the laws of the pendulum. The baptistry is a very handsome building, but the chief interest centers in the well known "Leaning Tower," from whose summit Galileo made his experiments on falling bodies. The attitude of this tower is probably due to the insufficient foundations...
...carbon tips must be together when the current is started, and the break is made by lifting the upper one a little by a mechanical arrangement. The powerful current, in overcoming the resistance offered by the air, heats the carbon tips to a white heat. In the incandescent lamp the resistance is offered by a filament of carbon encased in an air-tight glass-bulb. The current required to drive an are light will drive twenty-four 16-candle incandescent lamps...
...method the spectra of various metals were obtained by burning the metal in the flame of a Bunser lamp placed before the slit of a spectroscope which had one prism. As a consequence the lines of the spectra were crowded together and confused. The modern method of observing spectra is by taking photographs in the spectroscope and composing the result with a photograph of the Sun's spectrum...
...indicate that the revival of the Greek idea,- that body and mind are two well fitting halves of a perfect whole, and that each of them has its distinct and urgent claims to nurture and development-aided by the exact methods of modern science and guided not by the lamp of observation alone but also by the light of physiological knowledge, will eradicate the seeds and blot out the remaining marks of mediaeval barbarism, and equip the members of the human family for the exigencies of the campaign of life and the demands of civilization...