Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 200
Fig. 106. 4th. That of a sphericalsegment taken in reference toa diameter passing throughits centre of gravity, or mid-dle, gives … that of a sphericalsegment, inreference to itsversed sine; in which / denotes the versed sine of the segment, and rthe radius- of the sphere; and for the entire sphere, I\ = T5 * Is X of a sphere, inreference to adiameter: 5th. That of a right conehaving a circular base, takenwith reference to the…
Mechanics · Acoustics · Optics
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![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-177-18.webp)
