Found inside – Page 428With the insight of genius he seized on the only available means of producing electric waves short enough to be measurable , viz . , the disturbances propagated outward from the discharge of a condenser of small capacity . Hertz's apparatus ... I have to communicate to you today the most important physical discovery of the century. " Hertz, philosophizing in his direct, lucid, pithy style, once wrote "We have to imagine". Perhaps this is metaphysics on the horizon? Found inside – Page 51If Paraguay continued using a fifty-hertz electrical grid, warned the engineering students, it would not be able to access its Itaipú electricity. Found inside – Page 101Heinrich Hertz and Electric Waves Jed Z. Buchwald. He did not believe that electricity moves at all in the sense of the displacement of an object from one ... Found inside – Page 263Hertz's researches on electric waves , experimental and theoretical , have been published in book form ( see Electric Waves by Heinrich Hertz , translated by D. E. Jones , Macmillan and Company , 1893 ) . A very good discussion of Hertz's ... Found inside – Page 113The so-called “American” system, uses power at 60 hertz (cycles per second), while the “European” system uses 50 hertz electric power. Found inside – Page 105How Electricity Switched on the Modern World David Bodanis. Extract from the diary of Heinrich Hertz , 1889 : 17 March . Vigorously calculating . 26 March . I have to communicate to you today the most important physical discovery of the century. " Hertz, philosophizing in his direct, lucid, pithy style, once wrote "We have to imagine". Perhaps this is metaphysics on the horizon? Bruce J. Hunt examines the joint work of a group of young British physicists--G. F. FitzGerald, Oliver Heaviside, and Oliver Lodge--along with a key German contributor, Heinrich Hertz. Found inside – Page 122The existing various definitions of “electrical injury” are principally similar. ... Most dangerous is electricity with a rate of 40-60 Hertz; electricity ... Found inside – Page 378On the Comparison of Low and High Vacuum Electrical and Radiant Matter Phenomena with the Aurora , the Solar Corona , and ... The Hertz Electric Waves , and the Consequent Reform in Physics ( Ueber die Hertzschen Elektrischen ... Found inside – Page 50In 1938 the present author had the honour of receiving from the hands of Frau Hertz the original manuscript of the paper, On Electric Radiation}1 Twenty ... Found inside – Page 174(London: Electrician Co., 1893–1912); and Heinrich Hertz, Electric Waves: Being Researches on the Propagation of Electric Action with Finite ... Nikola Tesla was a genius who revolutionized how the world looks at electricity. The National Research Council convened an expert committee at the request of the SSA to study the issues related to disability determination for people with hearing loss. This volume is the product of that study. Found insideWith this book, you can quickly search electronics topics and go straight to the recipe you need. It also serves as an ideal reference for experienced electronics makers. Found inside – Page 395Hertz's Solution of Maxwell's Equations . Vibrating Electric Doublets 516. The mathematical theory given above is not very well adapted for the complete investigation of the radiation in a field in which the changes are due to harmonically ... In this “informative and delightful” (American Scientist) biography, Margaret Cheney explores the brilliant and prescient mind of Nikola Tesla, one of the twentieth century’s greatest scientists and inventors. Found inside – Page 7ELECTRIC POWER FOR THE DIGITAL BATTLEFIELD'S FOOT SOLDIERS Transient ... They produce Class 2B or better power ( See Figure 2 ) at 60 hertz except for ... Found inside – Page 431With the insight of genius he seized on the only available means of producing electric waves short enough to be measurable , viz . , the disturbances propagated outward from the discharge of a condenser of small capacity . Hertz's apparatus ... Found inside – Page 664I. Background Information on Electromagnetic Fields Electricity is transferred through high-voltage power transmission lines which emit an electromagnetic field (EMF) of 60 hertz (Hz).5 These lines transfer electricity. In the United States, there ... Found inside – Page 43Extremely Low Frequency (ELF) Electromagnetic energy in the approximate frequency range of 1 hertz to 3,000 hertz, elf includes 60 hertz electric power ... Found inside – Page 236IN Project Resumes, DOE Annual Review of Research on Biological Effects of 50 and 60 Hz Electric and Magnetic fields, November 1990, Denver, Colorado, ... Found inside – Page 30CARRIZO SOLAR CORPORATION The modules on our power plants are restless working for the California utilities . ... Effects of Intermittent 60 - Hz Electric Field Exposure : Circadian Phase Shifts , Splitting , Torpor , and Arousal Responses in ... Found inside – Page 357Helmholtz suggested to Hertz that he should attempt the solution ; but at the time he saw no way of bringing phenomena of this kind within the limits of observation . From this time forward , however , the idea of electric oscillations was ... Found inside – Page 345See `On the Finite Velocity of Electromagnetic Actions' (1888) in Hertz, Electric Waves, p. 111. `The Forces of Electric Oscillations, Treated According to ... Published in 1900, this revised treatise explores the far-reaching effects of Heinrich Hertz's most famous discovery: wireless radio waves. Found inside – Page iTechnically and practically, this book is aimed at people with a scientific background, risk prevention actors, health physicians, especially occupational doctors, and equipment designers. Found inside – Page 12-1PRINCIPLES OF ELECTRICITY Many of the tasks assigned to GSEs involve the repair , troubleshooting , and operation of components of the 60 - Hz power ... Found inside – Page 810D. E. Hughes , the discoverer of the electrical phenomenon associated with the loose contact or microphone , made a ... It was then left for Henrich Hertz to elucidate experimentally Maxwell's theory , as modified by Helmholtz , and his own ... Found inside – Page 377HERTZ'S DISCOVERY The light - ether , like every other elastic medium , bas the property of propagating , through periodic impacts in one spot , continuous concussions or perturbations of constant velocity which is quite independent of the ... Found insideAdapted to the Elementary Stage of the South Kensington Syllabus . Globe 8vo . 39. 6d . Practical Exercises in Magnetism and Electricity . Gl . 8vo . 3s . Magnetism and Electricity for Students . Gl . 8vo . 78 . Hertz . - Electric Waves . By H. Hertz . Found inside – Page ix223 On an Effect of Ultraviolet Light upon the Electric Discharge Heinrich Hertz The first paper ever published on the photoelectric effect. Found inside – Page 104The frequency at which the current changes directions is measured in Hertz (Hz). Electrical power in the United States is generated and transmitted at 60 ... Found inside – Page 240Results of Hertz's Experiments.— With the apparatus arranged as in Fig . 137 , let us place the circular conductor near the zinc screen . " This is what we observe : Just at the conducting metallic surface there are no sparks , but they make their ... Found inside – Page 88In the paper "On Electric Radiation," which Hertz regarded as a "natural end" of this series of researches, he reported that his experiments had removed ... I have to communicate to you today the most important physical discovery of the century. " Hertz, philosophizing in his direct, lucid, pithy style, once wrote "We have to imagine". Perhaps this is metaphysics on the horizon? Found inside – Page 232After discovering the electric waves, Hertz became a staunch believer in the reality of the field and sought to understand Maxwell's theory more fully. Found inside – Page 7ELECTRIC POWER FOR THE DIGITAL BATTLEFIELD'S FOOT SOLDIERS Transient ... They produce Class 2B or better power ( See Figure 2 ) at 60 hertz except for the ... Found inside – Page 14THE EARLY EXPERIMENTERS . 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