Record

Reference numberCLP/2/1
LevelFile
TitlePaper, 'A new levell' by Christopher Wren
Date1667
DescriptionIf a concave glasse be placed to turn upon a foot with a bll and socket horizontally and a drop of quicksilver (Mercury) be laid upon it. When the quicksilver lies upon the center of the section the edges of the glasse will be situated in a true horizontal plain and consequently a dioptra laid upon it will give an exact Level in any azimuth without motion of the instrument, and this sort of Level will prove as true as from a pendulum of a length equal to the radius of the section.

Subject: Physics

Produced at the Royal Society on 14 March 1667.
LanguageEnglish
Extent1p
FormatManuscript
Access statusOpen
Related records in the catalogueRBC/2/92
RBO/3/53
CLP/2/1/1
CLP/2/1/2
Fellows associated with this archive
CodeNameDates
NA8299Wren; Sir; Christopher (1632 - 1723); architect, astronomer, and mathematician1632 - 1723
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