| 释义 |
[David's staff
Originally an error of Pietro della Valle's, who gave Dauidstoff as the English name of an instrument for taking the altitude of the sun. This was reproduced by his translator, Havers, as David's Staff, which was copied by Blount and Phillips, and is repeated in some modern Dicts. So also David's quadrant (= back-staff) in Phillips (ed. 1696), corrected in Kersey's ed. (1706) to Davis's quadrant: see quadrant n.1, quot. 1696.
1623Pietro della Valle Viaggi Let. i. 22 Mar. (1663) IV. 16 Con diuersi altri strumenti: e con vno in particolare, che mi dissero, da poco tempo in quà, essere stato inventato da vn tal Dauid, che dal suo nome l'haueua chiamato Dauidstoff, che in lingua Inglese vale à dir legno di Dauid. 1664G. Havers translation, One [instrument] invented by one David, and from his name call'd David's Staff. 1674Blount Glossogr., Davids-staff, is an instrument in Navigation, consisting of two Triangles united together, one longer then the other, both having their base arched, and between them in the circle of their bases, containing an entire Quadrant of ninety degrees. Valle's Travels. ] |