Search results
Results from the WOW.Com Content Network
Daniel Gabriel Fahrenheit FRS (/ ˈ f ær ə n h aɪ t /; German: [ˈfaːʁn̩haɪt]; 24 May 1686 – 16 September 1736) [1] was a physicist, inventor, and scientific instrument maker, born in Poland to a family of German extraction.
The tachograph was originally introduced for the railways so that companies could better document irregularities. The inventor was Max Maria von Weber, a civil servant, engineer and author. The Daniel Tachometer has been known in the railway industry since 1844. [1] The Hasler Event recorder was introduced in the 1920s. [citation needed]
1709 — Daniel Gabriel Fahrenheit constructed alcohol thermometers which were reproducible (i.e. two would give the same temperature) 1714 — Daniel Gabriel Fahrenheit invents the mercury-in-glass thermometer giving much greater precision (4 x that of Rømer). Using Rømer's zero point and an upper point of blood temperature, he adjusted the ...
A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. [1] The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common.
Wilhelm Bauer: Inventor and engineer, who built several hand-powered submarines. Eugen Baumann: He was one of the first people to create polyvinyl chloride (PVC), and, together with Carl Schotten, he discovered the Schotten-Baumann reaction. Carl Baunscheidt: Inventor of the Lebenswecker ("life awakener") or "artificial leech".
1676 - Daniel Quare, a London clock-maker, invents the repeating clock, that chimes the number of hours (or even minutes). [7] 1680 - Second hand introduced; 1737 - John Harrison presents the first stable marine chronometer, thereby allowing for precise longitude determination while at sea
Uhlhorn was an engineer, mechanic and inventor, who invented in 1817 the first mechanical tachometer. [1] [2] Between 1817 and 1830 he was inventor of the Presse Monétaire (level coin press known as Uhlhorn Press) which bears his name. [3]
Daniell was born in London.In 1831 he became the first professor of chemistry at the newly founded King's College London; and in 1835 he was appointed to the equivalent post at the East India Company's Military Seminary at Addiscombe, Surrey. [1]