Help


[permalink] [id link]
+
Page "Wireless telegraphy" ¶ 21
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

Hertz and did
As the effect was produced across several centimeters of air and made very great positive and small negative ions, it was natural to interpret the phenomenon, as did J. J. Thomson, as a Hertz effect upon the solid or liquid particles present in the gas.
Hertz took this work no further, did not exploit it commercially, and famously did not consider it useful.
Hertz did not follow up on the experiments.
They also did a series of ads for Hertz car rentals in the 1980s.
John Hertz initially did not think much of Count Fleet and contemplated selling him until jockey Johnny Longden convinced him to keep the colt.
Hewlett-Packard and IBM did not get their leasing fees, BT Ignite ended up providing broadband services without compensation, Hertz will not be getting its car leasing fees, Nokia Ventures with 25 percent ownership, and Softbank UK Ventures with 15 percent ownership had nothing to show, operators in the Philippines ( Global Handyphone ), Italy ( Telecom Italia Mobile – TIM ), Spain ( Telefónica ) and Finland ( Radiolinja ) and the landlord is missing 157, 000 euros worth of rent.
He founded in 1851 a société des jeunes artistes du conservatoire that gave concerts in the Salle Hertz for a decade, and, as conductor of its concerts, did much to popularize the best new compositions of the time.

Hertz and system
While the domain of the signals is commonly time, leading to a Nyquist frequency in Hertz, this does not have to be the case ; for example, an image sampling system has a Nyquist frequency expressed in units of reciprocal length, such as cycles per meter.
In 1952, CTA purchased the assets of the Chicago Motor Coach Company, which was under the control of Yellow Cab founder John D. Hertz, resulting in a fully unified system.
Drew's government insisted on spending $ 400 million in a ten-year program to convert Ontario's electricity system from 25-cycles ( Hertz ) to 60-cycles, standardizing it with the rest of North America.
The nomenclature of the generations generally refers to a change in the fundamental nature of the service, non-backwards-compatible transmission technology, higher peak bitrates, new frequency bands, wider channel frequency bandwidth in Hertz, and higher capacity for many simultaneous data transfers ( higher system spectral efficiency in bit / second / Hertz / site ).

Hertz and for
The IEC was instrumental in developing and distributing standards for units of measurement, particularly Gauss, Hertz, and Weber.
In the collection of physical instruments at the Technical High School at Karlsruhe ( where these researches were carried out ), Hertz had found and used for lecture purposes a pair of so-called Eiess spirals or Knochenhauer spirals.
Hertz had been surprised to find that it was not necessary to discharge large batteries through one of these spirals in order to obtain sparks in the other ; that small Leyden jars amply sufficed for this purpose, and that even the discharge of a small induction coil would do, provided it had to spring across a spark gap.
Hertz ’ s setup for a source and detector of radio waves ( then called Hertzian waves in his honor ) was the first intentional and unequivocal transmission and reception of radio waves through free space.
* 10 nanoseconds ( 10 ns ) – cycle time for frequency 100 megahertz ( 1 Hertz ), radio wavelength 3 m ( VHF, FM band )
Prior to the digital age, the use of the local loop for anything other than the transmission of speech, encompassing an audio frequency range of 300 to 3400 Hertz ( voiceband or commercial bandwidth ) was not considered.
The same will be true when one is at the airport looking for the booth of the Hertz Rent-A-Car company.
* IEEE Heinrich Hertz Medal ( for electromagnetics )
In 1986 it was sold to UAL Corp., the holding company for United Airlines, who became Allegis Corp. in an attempt to re-incarnate itself as a full-service travel company encompassing Westin Hotels and Hertz rental cars in addition to Hilton International and United Airlines.
Hadley was followed in 1915 by Alfred Hertz, who had conducted for many years at the Metropolitan Opera and had appeared with the company during their historic performances in San Francisco in April 1906, just prior to the earthquake and fire.
The early recordings, for the Victor Talking Machine Company, included music by Auber and Richard Wagner, conducted by Alfred Hertz.
" But according to Rabbi Joseph H. Hertz ( Chief Rabbi of the British Empire ), child sacrifice was actually " rife among the Semitic peoples ," and suggests that " in that age, it was astounding that Abraham's God should have interposed to prevent the sacrifice, not that He should have asked for it.
The Hertz Center, a new practice facility for the basketball and volleyball teams that includes athletic training and strength and conditioning rooms, offices, film rooms, and lockers, opened in 2011.
A small number of modern Jewish theologians such as Yehezkel Kaufman and Rabbi Joseph H. Hertz have suggested that perhaps only the Israelites were forbidden to worship idols, but perhaps such worship was permissible for members of other religions.
Hertz placed dipole antennas at the focal point of parabolic reflectors for both transmitting and receiving.
From the perspective of dimensional analysis, the unit Hertz ( Hz ) is also correct, but in practice it is only used for ordinary frequency f, and almost never for ω.
With two such antennas, one used for transmitting and the other for receiving, Hertz demonstrated the existence of radio waves which had been predicted by James Clerk Maxwell some 22 years earlier.
The number of instructions per second for a processor can be derived by multiplying the instructions per cycle and the clock speed ( measured in cycles per second or Hertz ) of the processor in question.
He began his music career as the vocalist for the band Seven Hertz.
" Successful intellectual women such as Susan Greenfield and Noreena Hertz dress attractively for publicity photoshoots.
* Gustav Hertz ( 1887 – 1975 ), physicist, Nobel Prize for physics in 1925

Hertz and general
First observed by Heinrich Hertz in 1887, the phenomenon is also known as the Hertz effect, although the latter term has fallen out of general use.

Hertz and use
At first Hertz thought the electrical disturbances would be too turbulent and irregular to be of any further use, but when he had discovered the existence of a neutral point in the middle of a side-conductor, and therefore of a clear and orderly phenomenon, he felt convinced that the problem of the Berlin Academy was now capable of solution.
Based on the large Faraday rotation, one might be able to use GaAs to calibrate the B field of the Tera Hertz electromagnetic wave which requires very fast response time.
However, its use in the Ugarit ( modern Ras Shamra, Syria ) tablets has proven it to be pre-Mosaic ( Hertz 1936 )
In 1911, a large generating station was built in South Boston which produced 25 Hertz alternating current, which could be transmitted long distances at high voltage, to substations which would drop the voltage for use by trains.
The therapeutic use of radioiodine to treat hyperthyroidism from Graves ' disease was first reported by Saul Hertz in 1941.

Hertz and describe
The frequency response specification of a speaker " attempts to describe the range of frequencies or musical tones a speaker can reproduce, measured in Hertz " Subwoofers vary in terms of the range of pitches that they can reproduce, depending on a number of factors such as the size of the cabinet and the construction and design of the enclosure and driver ( s ).

Hertz and application
" Hertz also stated, " I do not think that the wireless waves I have discovered will have any practical application.
Depending upon the application, the output pulse repetition rate may range from a fraction of a Hertz to over 10kHz.
Monte Carlo methods were first introduced to finance in 1964 by David B. Hertz through his Harvard Business Review article, discussing their application in Corporate Finance.

0.512 seconds.