See also:

• JESSE
• JESSE, EDWARD (178o–1868)
• JESSE, JOHN HENEAGE (1815-1874)

JESSE See also:

• JESSE RAMSDEN (1735-1800)

RAMSDEN (1735-1800)  , See also:

• ENGLISH

English astronomical See also:

• INSTRUMENT (Lat. instrumentum, from insincere, to build up, furnish, arrange, prepare)

instrument maker, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born at Salterhebble near See also:

• HALIFAX
• HALIFAX, CHARLES MONTAGUE, EARL OF (1661–1715)
• HALIFAX, GEORGE MONTAGU DUNK, 2ND EARL OF (1716-1771)
• HALIFAX, GEORGE SAVILE, 1ST MARQUESS OF (1633-1695)

Halifax, See also:

• YORKSHIRE

Yorkshire, on the 6th of See also:

• OCTOBER

October 1735 . After serving his See also:

• APPRENTICESHIP (from Fr. apprendre, to learn)

apprenticeship with a See also:

• CLOTH

cloth-worker in Halifax, he went in 1755 to See also:

• LONDON

London, where in 1758 he was apprenticed to a mathematical instrument maker . About four years afterwards he started business on his own See also:

• ACCOUNT
• ACCOUNT (through O. Fr. acont, Late Lat. comptum, cornputare, to calculate)

account and secured a See also:

• GREAT

great reputation with his products . He died at See also:

• BRIGHTON

Brighton on the 5th of See also:

• NOVEMBER (Lat. novem, nine)

November 1800 . See also:

• RAMSDEN, JESSE (1735-1800)

Ramsden's speciality was divided circles, which began to supersede the quadrants in observatories towards the end of the 18th See also:

• CENTURY (from Lat. centuria, a division of a hundred men)

century . His most celebrated See also:

• WORK

work was a 5-feet See also:

• VERTICAL (from Lat. vertex, highest point)

vertical circle, which was finished in -1789 and was used by G . Piazzi at See also:

• PALERMO (Greek, Havopuos; Latin, Panhormus, Panormus)

Palermo in constructing his well-known See also:

• CATALOGUE (a Fr. adaptation of the Gr. KaraXoyos, a register, from Karalyety, to enrol or pick out)

catalogue of stars . He was the first to carry out in practice a method of See also:

• READING

reading off angles (first suggested in 1768 by the See also:

• DUKE (corresponding to Fr. duc, Ital. duca, Ger. Herzog)

duke of Chaulnes) by measuring the distance of the See also:

• INDEX

index from the nearest See also:

• DIVISION (from Lat. dividere, to break up into parts, separate)

division See also:

• LINE

line by means of a micro-See also:

• METER, ELECTRIC

meter See also:

• SCREW (O.E. scrue, from O. Fr. escroue, mod. ecrou; ultimate origin uncertain; the word, or a similar one, appears in Teutonic languages, cf. Ger. Schraube, Dan. skrue, but Skeat, following Diaz, finds the origin in Lat. scrobs, a ditch, hole, particularl

screw which moves one or two See also:

• FINE

fine threads placed in the focu's of a See also:

• MICROSCOPE (Gr. µucp6s, small, asenreiv, to %view)

microscope . Ramsden's transit See also:

• INSTRUMENTS

instruments were the first which were illuminated through the hollow See also:

• AXIS (Lat. for " axle ")

axis; the See also:

• IDEA (Gr. Ibia, connected with i&eiv, to see; cf. Lat. species from specere, to look at)

idea was suggested to him by Prof . See also:

• HENRY
• HENRY (1129-1195)
• HENRY (c. 1108-1139)
• HENRY (c. 1174–1216)
• HENRY (Fr. Henri; Span. Enrique; Ger. Heinrich; Mid. H. Ger. Heinrich and Heimrich; O.H.G. Haimi- or Heimirih, i.e. " prince, or chief of the house," from O.H.G. heim, the Eng. home, and rih, Goth. reiks; compare Lat. rex " king "—" rich," therefore " mig
• HENRY, EDWARD LAMSON (1841– )
• HENRY, JAMES (1798-1876)
• HENRY, JOSEPH (1797-1878)
• HENRY, MATTHEW (1662-1714)
• HENRY, PATRICK (1736–1799)
• HENRY, PRINCE OF BATTENBERG (1858-1896)
• HENRY, ROBERT (1718-1790)
• HENRY, VICTOR (1850– )
• HENRY, WILLIAM (1795-1836)

Henry Ussher in See also:

• DUBLIN

Dublin . He published a Description of an See also:

• ENGINE
• ENGINE (Lat. ingenium)

Engine for dividing Mathematical Instruments in 1777 .