Date: | 1863 |
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Description: | Muir's illustration of a means to record time by use of a star. He titled the drawing "The star hand rising and setting with the sun all the year". |
Date: | 1863 |
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Description: | A John Muir sketch of a fancake draught of sawframe with crankshaft in position. Scale two inches per foot. Depth of frame 5 1/2 inches. Speed of cranks... |
Date: | 1745 |
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Description: | A two page illustration featuring a small globe in the center of numerous astrological spheres. Additionally, the representation features writing, in Lati... |
Date: | 1941 |
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Description: | A diagram of sun angles for the Chicago latitude shows angles on the 21st days of December, March, September and June. Study done for design of the Hugh D... |
Date: | 1828 |
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Description: | Increase Lapham's drawings of Unio plicatus and Unio radiatum (?) from the Scioto River, Cypraea tigris (Tiger cowry), and an Atlantic... |
Date: | 1828 |
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Description: | Increase Lapham's drawing of a Union mondonta (or Unio soleniformis) shell. There are also two views of another shell drawn below and a drawi... |
Date: | 1828 |
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Description: | Increase Lapham drawings of Poa pratensis, Festuca duriuscula, Lolium prenne, Alopecurus pratensis, Anthoxanthum odoratum |
Date: | |
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Description: | Increase Lapham's drawing of Setaris Italica or foxtail millet and Panicum miliaceum or proso millet. There are also inset drawings of a spik... |
Date: | 1854 |
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Description: | Increase Lapham's drawing of Oryzopsis asperifolia or Mountain Rice (Rough-Leaved Rice Grass). |
Date: | 1854 |
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Description: | Increase Lapham's drawing of Zizania aquatica. The plant's common name is Northern Wild Rice. |
Date: | |
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Description: | Two barefoot men are standing and looking at a dilapidated outhouse, which has a sliding board for a seat extending out of the sides of the outhouse. The b... |
Date: | |
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Description: | A man is standing on the left next to an outhouse which has been connected to machinery. The caption below reads: "This built in service unit increased our... |
Date: | |
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Description: | Illustration art of candling an egg. On a black background, the bright flame at the end of a tapered candle on the left illuminates a right hand holding up... |
Date: | |
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Description: | Illustration showing the relationship of film speed, shutter speed, and aperture in photography. |
Date: | |
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Description: | Sid's illustration showing the range of infrared and ultraviolet radiation and the color sensitivity of Panchromatic and Ortho films compared to human visi... |
Date: | |
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Description: | Sid's illustration showing the relationship between film, a camera lens and the light controls for aperture and shutter speed in photography. |
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