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The first practical pneumatic tire was made by John Boyd Dunlop while working as a veterinarian in May Street, Belfast, Ireland in 1887 for his son's bicycle, in an effort to prevent the headaches his son had while riding on rough roads ( Dunlop's patent was later declared invalid because of prior art by fellow Scot Robert William Thomson ).
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first and practical
These theoretical relationships are more clearly illustrated in Fig. 7 and their sum can be seen to correlate in form with practical measurements made with the Hesiometer as illustrated in the first portion of Fig. 5 for the cutting mechanism.
" In practical terms, the most important law in the code may well be the very first: " We enjoin, what is most necessary, that each man keep carefully his oath and his pledge ," which expresses a fundamental tenet of Anglo-Saxon law.
Anthemius assumes a property of an ellipse not found in Apollonius's work, that the equality of the angles subtended at a focus by two tangents drawn from a point, and having given the focus and a double ordinate he goes on to use the focus and directrix to obtain any number of points on a parabola — the first instance on record of the practical use of the directrix.
This word was first used by Robert Blair ( d. 1828 ), professor of practical astronomy at Edinburgh University, to characterize a superior achromatism, and, subsequently, by many writers to denote freedom from spherical aberration.
Though the Lind was not the first it was the most practical and best known anemometer of this type.
While it is not recorded as a " steal ", in a practical sense a batter can be said to " steal first base " by successfully running to first base ( without being tagged or thrown out ) in rare circumstances following an uncaught third strike ; the rarely-seen play avoids an " out " and gains a baserunner.
In 1888, Scotsman John Boyd Dunlop introduced the first practical pneumatic tire, which soon became universal.
In 1949, he erected his first geodesic dome building that could sustain its own weight with no practical limits.
The second partial ( first overtone ) is the lowest note of each tubing length practical to play on half-tube instruments.
* Willem Einthoven ( 1860 – 1927 ), a physiologist who built the first practical ECG and won the 1924 Nobel prize in medicine
TFI's founder and prophetic leader, David Berg, who was first called " Moses David " in the Texas press, communicated with his followers via Mo Letters — letters of instruction and counsel on myriad spiritual and practical subjects — until his death in late 1994.
On a practical basis, Berthollet was the first to demonstrate the bleaching action of chlorine gas, and was first to develop a solution of sodium hypochlorite as a modern bleaching agent.
In 1983, using the psychoacoustic principle of the masking of critical bands first published in 1967, he started developing a practical application based on the recently developed IBM PC computer, and the broadcast automation system was launched in 1987 under the name Audicom.
" Early detective stories tended to follow an investigating protagonist from the first scene to the last, making the unraveling a practical rather than emotional matter.
* 1947 – William Shockley, John Bardeen and Walter Brattain build the first practical point-contact transistor.
Proponents of moral science like Ronald A. Lindsay have counter-argued that their way of understanding " morality " as a practical enterprise is the way we ought to have understood it in the first place.
The zinc-manganese dioxide dry cell was the first portable, non-spillable battery type that made flashlights and other portable devices practical.
The lead acid battery was the first practical secondary ( rechargeable ) battery that could have its capacity replenished from an external source.
The first practical electron microscope was constructed in 1938, at the University of Toronto, by Eli Franklin Burton and students Cecil Hall, James Hillier, and Albert Prebus ; and Siemens produced the first commercial transmission electron microscope ( TEM ) in 1939.
This practical eminence of Constantinople in the East is evident, first at the First Council of Constantinople 381, and then ecumenically at the Council of Chalcedon in 451.
As a result of the work of Étienne-Jules Marey and Eadweard Muybridge, many researchers in the late 19th century realized that films as they are known today were a practical possibility, but the first to design a fully successful apparatus was W. K. L. Dickson, working under the direction of Thomas Alva Edison.
In 1893 at the Chicago World's Fair, Thomas Edison introduced to the public two pioneering inventions based on this innovation ; the Kinetograph – the first practical moving picture camera – and the Kinetoscope.
first and pneumatic
When pneumatic tubes first came into use in the 19th century, they symbolized technological progress and it was imagined that they would be common in the future.
* February 26 – In New York City, the first pneumatic subway is opened.
Peugeot became the first manufacturer to fit rubber tires ( solid, rather than pneumatic ) to a petrol-powered car that year.
He invented the steam gun and the pneumatic tube message system, and worked on one of the first British paddle steamers to cross the English Channel.
Murdoch also carried out a number of experiments with compressed air and developed the first pneumatic message system which worked by using compressed air to propel a message in a cylinder through a tube to its intended destination.
* 1894 – The first pneumatic rubber tire was invented by D. C. Spraker at the Kokomo Rubber Tire Company.
Van Dusen's American patent of 1867 was the first to describe a pneumatic striker operated by a roll.
Stonehaven was the birthplace of Robert William Thomson, inventor of the pneumatic tyre and the fountain pen, of journalists James Murdoch, and Lord Reith of Stonehaven, first Director-General of the BBC.
* Pulverizers: Originally pneumatic powered standard sledgehammers that did minimal damage, the Pulverizers were first upgraded to 50 pound aluminum mallets for season 2, and were again upgraded to 150 pound mallets for season 3 and beyond.
The spoon brake, or plunger brake was probably the first type of bicycle brake and precedes the pneumatic tyre.
John Boyd Dunlop ( 1840 – 1921 ) lived in a large 18th century house called " South Hill " and developed the first practical pneumatic or inflatable tyre.
He had sold his first bike and bought a lighter one — still 16 kg but with pneumatic tyres — for 850 old French francs ( approx € 3, 000 at 2008 values ) The race was over 102 km.
It was only natural that the first HVAC controllers would be pneumatic, as the engineers probably understood fluid control.
In 1887, he developed the first practical pneumatic or inflatable tyre for his son's tricycle, tested it in Cherryvale sports ground, South Belfast and patented it on 7 December 1888.
Willie Hume demonstrated the supremacy of Dunlop's newly invented pneumatic tyres in 1889, winning the tyre's first ever races in Ireland and then England.
The captain of the ' Belfast Cruisers Cycling Club ', he became the first member of the public to purchase a bicycle fitted with pneumatic tyres, so Dunlop suggested he should use them in a race.
It is the longest arch bridge in the world at this time, with an overall length of 6, 442 feet ( 1, 964 m ); the first use of true steel as a primary structural material in a major bridge project ; the first built using cantilever support methods exclusively ; and the first major project to make use of pneumatic caissons.
* 1901 – the first pneumatic tool was officially added to the production line – a pneumatic riveting hammer which was originally designed for their own workshops.
It is a high-wing monoplane powered by a carbonic acid gas engine, and is first aircraft with pneumatic tires.
A restored pneumatic player piano of the type that could well have been used in 3AK's first studio.
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