The description and use of a joynt-rule fitted with lines for the finding the hour of the day and azimuth of the sun, to any particular latitude, or, to apply the same generally to any latitude

Ähnliche Einträge

• A nevv quadrant, of more naturall, easie, and manifold performance, than any other heretofore extant framed according to the horizontall projection of the sphere, with the uses thereof. By C.B. maker of mathematic instruments in metall
  von: Brookes, Christopher
  Veröffentlicht: (1649)
• The art of dialling by a new, easie, and most speedy way. Shewing, how to describe the hour lines upon all sorts of plains; howsoever, or in what latitude soever, situated. Also; to find the hour of the day, and the azimuth of the sun, whereby the sight of any plain is examined. Performed by a quadrant filled with lines necessary to that purpose. Invented and published in anno 1638. by Samuel Foster, then professor of astronomie in Gresham Colledge. The second edition, with several additions and variations of the authors, deduced from his own manuscript. With a supplement, performing all the instrumental work of the quadrant, by calculation. By help of the canons of sines and tangents, which of all ways is the most exact. By William Leybourn philomath
  von: Foster, Samuel
  Veröffentlicht: (1675)
• The art of numbring by speaking-rods, vulgarly termed Nepeirs bones by which the most difficult parts of arithmetick, as multiplication, division, and extracting of roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and subtraction only
  von: Leybourn, William 1626-1716
  Veröffentlicht: (1667)
• The art of numbring by speaking rods, vulgarly termed Nepeirs bones by which the most difficult parts of arithmetick, as multiplication, division, and extracting roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and subtraction only
  von: Leybourn, William 1626-1716
  Veröffentlicht: (1685)
• A supplement to geometrical dialling by William Leybourn, philomath. Shewing how by scale and compasses to inscribe such circles of the sphere into sun-dial-plains, that shall shew (besides the hour of the day) the diurnal motion of the Sun; his place in the zodiack; the time from his rising, and setting; the Babylonian, Italian, and Jewish hours; the point of the compass upon which the Sun is at any time of the day, and the proportions of shadows to their heights. Also a general and easie way to project hour-lines upon all kinds of superficies, without any regard had to their standing, either in respect of declination, reclination, or inclination. And how from a glass horizontally placed in the soyl of a window, to reflect hours upon any superficies, either flat, or curved; one, or many
  von: Leybourn, William 1626-1716
  Veröffentlicht: (1689)