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An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity's direction. It is also known as a tilt indicator , tilt sensor , tilt meter , slope alert , slope gauge , gradient meter , gradiometer , level gauge , level meter , declinometer , and pitch & roll ...
The Abney level was invented by Sir William de Wiveleslie Abney (24 July 1843 – 3 December 1920) who was an English astronomer and chemist best known for his pioneering of color photography and color vision. Abney invented this instrument under the employment of the School of Military Engineering in Chatham, England, prior to late 1870. It is ...
1912 – Stainless steel invented by Harry Brearley; 1916 – Method for growing single crystals of metals invented by Jan Czochralski; 1919 – The merchant ship Fullagar has the first all welded hull. 1924 – Pyrex invented by scientists at Corning Incorporated, a glass with a very low coefficient of thermal expansion
The device used may be purpose-made plumb lines, or simply makeshift devices made from a piece of string and a weighted object, such as a metal washer. This plumb line is important for lining up anatomical geometries and visualizing the subject's center of balance .
A Brunton compass, properly known as the Brunton Pocket Transit, is a precision compass made by Brunton, Inc. of Riverton, Wyoming. The instrument was patented in 1894 by Canadian-born geologist David W. Brunton. [1]
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The first known metal astrolabe in Western Europe is the Destombes astrolabe made from brass in the eleventh century in Portugal. [27] [28] (p 140) Metal astrolabes avoided the warping that large wooden ones were prone to, allowing the construction of larger and therefore more accurate instruments. Metal astrolabes were heavier than wooden ...
By that time Cambridge Instruments was a dormant holding company, manufacturing no instruments itself but owning parts of other businesses that did. After several further transfers of ownership, it was eventually dissolved in 2021. [6]