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In the Geissler tubes, there was so much air that the electrons could only travel a tiny distance before colliding with an atom.
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Geissler and tubes
These were called Geissler tubes, similar to today's neon signs.
The 19th century saw increasing research with evacuated tubes, such as the Geissler and Crookes tubes.
In 1858, after a year of working with vacuum tubes of his Bonn colleague Heinrich Geissler, he published the first of his classical researches on the action of the magnet on the electric discharge in rarefied gases.
As with a few other attempts to use Geissler tubes for illumination, it had a short operating life, and given the success of the incandescent light, Edison had little reason to pursue an alternative means of electrical illumination.
Early cold-cathode devices included the Geissler tube and Plucker tube, and early cathode ray tubes.
They were also used to provide entertainment ( lighting Geissler tubes, for example ) and to drive small " shocking coils ", Tesla coils and violet ray devices used in quack medicine.
The Moore Lamp was an extension of the well-known Geissler tube, which used glass tubes from which the air had been removed and a different gas inserted.
Geissler made a hand-crank mercury pump, and glass tubes that could contain a superior vacuum.
Drawing of Geissler tubes from 1869 French physics book, showing some of the many decorative shapes and colors.
Geissler tubes from the 1911 Webster's New International Dictionary of the English Language
Geissler tubes were mass produced from the 1880s as entertainment devices, with various spherical chambers and decorative serpentine paths formed into the glass tube.
Xenon in shaped neon tube s, a derivative of Geissler tubes.
Geissler tubes have had a large impact on the development of many instruments and devices all of which use related vacuum and discharge principles.
* Geissler and Crookes tubes shown working
In contrast to the mainstream interpretation, there is a fringe hypothesis according to which the reliefs depict Ancient Egyptian electrical technology, based on comparison to similar modern devices ( such as Geissler tubes, Crookes tubes, and arc lamps ).
Crookes tubes evolved from the earlier Geissler tubes, experimental tubes which are similar to modern neon tube lights.
Geissler tubes had only a low vacuum, around 10 < sup >− 3 </ sup > atm ( 100 Pa ), and the electrons in them could only travel a short distance before hitting a gas molecule.
* Crookes and Geissler tubes shown working
Inspired by Geissler tubes and by Daniel McFarlan Moore's invention of a nitrogen-based light ( the " Moore tube "), Claude developed neon tube lighting to exploit the neon that was produced as a byproduct of his air liquefaction business.
Geissler and was
The Electrotachyscope of Ottomar Anschütz was demonstrated, which used a Geissler Tube to project the illusion of moving images.
Ruhe and Geissler obtained UPI for the nominal price of $ 1 and were given a Scripps loan of $ 5 million, which was never repaid.
He was the first to use the vacuum tube with the capillary part now called a Geissler tube, by means of which the luminous intensity of feeble electric discharges was raised sufficiently to allow of spectroscopic investigation.
Little more was done with this phenomenon until 1856 when a German glassblower named Heinrich Geissler created a mercury vacuum pump that evacuated a glass tube to an extent not previously possible.
Because it produced some beautiful light effects, the Geissler tube was a popular source of amusement.
One of the first scientists to experiment with a Geissler tube was Julius Plücker who systematically described in 1858 the luminescent effects that occurred in a Geissler tube.
Johann Heinrich Wilhelm Geißler ( May 26, 1814, Igelshieb – January 24, 1879 ) was a skilled glassblower and physicist, famous for his invention of the Geissler tube, made of glass and used as a low pressure gas-discharge tube.
Geissler was awarded an honorary doctorate in 1868.
The tube was invented by the German physicist and glassblower Heinrich Geissler in 1857.
In the early 20th century, Geissler tube technology was commercialized and evolved into neon lighting.
The electrotachyscope was a disk of 24 glass diapositives, manually powered, and illuminated by a sparking spiral Geissler tube, used by a single viewer, or projected to a small group.
A Geissler tube was used to flash light through the transparencies to provide a weak projection to a single person or small audience through a small window.
Geissler and much
Geissler is a small lunar impact crater that lies on the northern floor of the much larger walled plain Gilbert, near the eastern limb of the Moon.
Geissler and air
In 1857, German physicist and glassblower Heinrich Geissler sucked even more air out with an improved pump, to a pressure of around 10 < sup >− 3 </ sup > atm and found that, instead of an arc, the glow filled the tube.
Geissler and electrons
William Crookes developed a modification of the Geissler tube into what is known as the Crookes tube to demonstrate and study these rays, later determined to be a stream of electrons.
Geissler and could
When an electrical current passed through a Geissler tube, a strong green glow on the walls of the tube at the cathode end could be observed.
Geissler and with
Scripps wound up giving the agency away to two inexperienced businessmen, Douglas Ruhe and William Geissler, originally associated with two better-known partners, who soon departed.
Inquiries that began with the Geissler tube continued as even better vacuums were produced.
At some point he started experimenting with producing light from glow discharges, which Heinrich Geissler had first developed in the 1850s.
The rim of Geissler is nearly circular, with a slight outward bulge toward the northwest.
Developed from the earlier Geissler tube, it consists of a partially evacuated glass container of various shapes, with two metal electrodes, one at either end.
Geissler and .
The study of vacuum then lapsed until 1855, when Heinrich Geissler invented the mercury displacement pump and achieved a record vacuum of about 10 Pa ( 0. 1 Torr ).
Facing news industry skepticism about their background and qualifications to run an international news agency, Ruhe and Geissler watched an increase in contract cancellations.
* 1856 glassblower Heinrich Geissler confines the electric arc in a Geissler tube.
: Aeroballistics Division – Ernst G. Geissler
Alexandre Edmond Becquerel observed in 1859 that certain substances gave off light when they were placed in a Geissler tube.
* Geissler, Erhard: Biologische Waffen, nicht in Hitlers Arsenalen.
* Geissler, Erhard: Biological warfare activities in Germany 1923-1945.
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