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HERTZ ESK 163L 6 1/2" 3-WAY 500W MAX COMPONENT CAR AUDIO PANEL SPEAKERS SYSTEM | $398.15 | 23d 18h 38m | |
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HERTZ DCX 690 6"X9" 3-WAY 360W MAX DIECI SERIES COAXIAL CAR STEREO REAR SPEAKERS | $128.15 | 21d 14h 21m | |
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HERTZ DCX 165 6 1/2" 2 WAY 240W MAX FULL RANGE COAXIAL CAR AUDIO PANEL SPEAKERS | $108.15 | 21d 14h 12m | |
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FPP 2100 FOCAL 2-CH AMP 520W MAX CAR COMPONENTS SPEAKERS SUB AMPLIFIER FPP2100 | $299.99 | 1d 14h 20m | |
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HERTZ HI ENERGY SERIES 6 1/2" 600W MAX 2-WAY COMPONENT CAR AUDIO SPEAKERS SYSTEM | $578.15 | 23d 20h 5m | |
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HERTZ ESK 165 6 1/2" 2-WAY 400W MAX COMPONENT CAR AUDIO PANEL SPEAKERS SYSTEM | $258.15 | 23d 18h 55m | |
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HERTZ DIECI SERIES 4" 120W MAX 2-WAY CAR AUDIO FULL-RANGE COAXIAL PANEL SPEAKERS | $72.15 | 22d 18h 34m | |
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BOX33V2 FOCAL SUB 13" POLYGLASS ENCLOSED SUBWOOFER NEW | $599.99 | 6d 16h 34m | |
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DWC304 MB QUART 12" 4-OHM DISCUS ORIGINAL SUB SUBWOOFER SPEAKER ORIGINAL PRODUCT | $89.99 | 15d 15h 37m | |
Buyers beware: HD Guru is reporting that top TV makers are quietly substituting industry standardized refresh rate specifications with their own artificial rate numbers, deceiving prospective buyers into purchasing an HDTV over a possibly better performing (but more honestly labeled) competing model.
These numbers, created by the marketing department, do little to explain a TV’s actual hardware capabilities.
Don’t get ripped off, read the following guide to help sort through the hype.
What is Refresh Rate?Initially all LCDs (including LED LCD TVs) suffered from blurring with fast motion or panning in content. This is referred to as “motion blur.” To reduce motion blur, manufacturers developed televisions that refresh (show) a new image faster than the standard rate of 60 times per second (stated as Hz or hertz). Using a technique called frame insertion, the TV creates new images that are inserted between the real, original image frames. Television makers now offer HDTVs with refresh rates of 60, 120 or 240 Hz. The higher the rate, the less motion blur.
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The Silent Takeover | $16.99 | eBooks.com | What is the fate of democracy in the world of the silent takeover? Of the world's 100 largest economies, fifty-one are now corporations, only forty-nine are nation-states. Do the parties for which we vote have any real freedom of choice in their actions? While the activities of business, frequently under pressure from the media and the consuming public, can range from the beneficial to the pernicious, neither public protest nor corporate power is in any way democratic. The widely acclaimed young socio-economist Noreena Hertz brilliantly and passionately reveals how corporations across the world manipulate and pressure governments by means both legal and illegal; how protest, be it in the form of the protesters of Seattle and Genoa or the boycotting of genetically altered foods, is often becoming a more effective political weapon than the ballot-box; and how corporations in many parts of the world are taking over from the state responsibility for everything from providing technology for schools to healthcare for the community. Already sparking intense debate in England and on the Continent, The Silent Takeover provides a new and startling take on the way we live now and who really governs us. But do governments really have more influence over our lives than businesses? In the face of these unacceptable extremes, Noreena Hertz outlines a new agenda to revitalize politics and renew democracy. The sales of General Motors and Ford are greater than the GDP (gross domestic product) of the whole of sub-Saharan Africa, and Wal-Mart now has a turnover higher than the revenues of most of the states of Eastern Europe. Yet few of us are fully aware of the growing dominance of big business: newspapers continue to place news of the actions of governments on the front page, with business news relegated to the inside pages. The Silent Takeover asks us to recognize the growing contradictions of a world divided between haves and have-nots, of gated communities next to ghettos, of extreme poverty and unbelievable riches. |
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History of Wireless | $116.00 | eBooks.com | In addition to the well-known contributions of Maxwell, Hertz, and Marconi, it examines work done by Heaviside, Tesla, and passionate amateurs such as the Kentucky melon farmer Nathan Stubblefield and the unsung hero Antonio Meucci. Written in a clear tone with a broad scientific audience in mind, this exciting and thorough treatment is sure to become a classic in the field. Fleming German, Japanese, and Soviet contributions to physics and applications of electromagnetic oscillations and waves Wireless telegraphic and telephonic development and attempts to achieve transatlantic wireless communications Wireless telegraphy in South Africa in the early twentieth century Antenna development in Japan: past and present Soviet quasi-optics at near-mm and sub-mm wavelengths The evolution of electromagnetic waveguides The history of phased array antennas Augmenting the typical, Marconi-centered approach, History of Wireless fills in the conventionally accepted story with attention to more specific, less-known discoveries and individuals, and challenges traditional assumptions about the origins and growth of wireless. Looking at the story from mathematical, physics, technical, and other perspectives, the clearly written text describes the development of wireless within a vivid scientific milieu. Bose and J. Starting with the background-magnetism, electricity, light, and Maxwell's Electromagnetic Theory-this book offers new insights into the initial theory and experimental exploration of wireless. History of Wireless also goes into other key areas, including: The work of J. C. A. This allows for a more comprehensive understanding of how various components and systems evolved. |