Between 1945 and 1960, the French researcher No�l Felici developed a series of high-power electrostatic generators, based on electric excitation and using cylinders rotating at high speed and hydrogen in pressurized containers.
22.
Nairne patented several electrical machines, including an electrostatic generator consisting of a glass cylinder mounted on glass insulators; the device can supply either positive or negative electricity, and was intended for medicinal use.
23.
The contact electrification phenomenon allowed the construction of so-called'frictional'electrostatic generators such as Ramsden's or Winter's machines, but it also led directly to the development of useful devices such as LEDs, and thermoelectric cells.
24.
Standard direct current was not always available at the turn of the century so that Toepler-Holtz electrostatic generators were used to provide physicians with current for treatment as well as to power the first x-ray devices.
25.
Galvanic cells suffered from the inconvenience of having to deal with the electrolyte acids in the surgery and the possibility of spillages; electrostatic generators required a great deal of skill and attention to keep them working successfully.
26.
For his pioneering work on the upper atmosphere and his development of the electrical pulse method of study; for his pioneering work in nuclear physics utilizing the electrostatic generator; and for his development of the proximity fuse.
27.
At a time when physicists were abandoning glass globe electrostatic generators, which used sulphur or resin, to use glass plates instead, the Duke of Chaulnes built the largest machine of this type that had yet been seen.
28.
The concept of an electrostatic generator was new, and the battery ( array ) of leiden jars was the largest ever built ( only one of the 4 sets of leiden jars is on display to conserve space ).
29.
Around 1650, Otto von Guericke built a crude electrostatic generator : a sulphur ball that rotated on a shaft . When Guericke held his hand against the ball and turned the shaft quickly, a static electric charge built up.
30.
Williams P-2 ( Electrostatic Generator ) Group carried out the first experiment in July 1943, when it used the larger of the two Van de Graaff generators to measure the ratio of ? for uranium-235 against that of plutonium.
