Browse Items (129 total)

  • Item Type: Technology

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Cable television is another important development in television industry. Generally speaking, any system that distributes television signals via radio frequency (RF) through coaxial or fiber-optic cables can be regarded as a cable system This…
Item Type: Technology

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On June 29, 2007, the first iPhone was released by Apple. The inspiration for the format of iPhone came from Apple's previous touch-screen portable device, the Newton MessagePad. "Like the Newton, the iPhone is nearly all screen. Its form factor is…
Item Type: Technology

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On November 15, 1971, Intel placed an advertisement for the first single-chip CPU, the Intel 4004, in Electronic News. Designed by three Intel engineers Federico Faggin, Ted Hoff, and Stanley Mazor, "the 4004 was a 4-bit, 16-pin microprocessor that…
Item Type: Technology

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From the original mechanical television to the electronic television, this display apparatus of moving images went through many periods. In the 1920's, John Baird patented the idea of using arrays of transparent rods to transmit images for…
Item Type: Technology

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The invention of the radio is a process thanks to the efforts of many generations. "The first systematic and unequivocal transmission of electromagnetic waves was performed by Heinrich Rudolf Hertz in his experimental proof of their existence". In…
Item Type: Technology

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In 1855, the Geissler tube was invented by Heinrich Geissler, a German glassblower and physicist. After the invention of the electrical generator, "many inventors began conducting experiments with Geissler tubes, electric power, and various gases"…
Item Type: Technology

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The world's first electric tram line operated in Sestroretsk, Russia, invented and tested by Fyodor Pirotsky in 1880 (Pyrgidis, 2016), and America's first large electric street railway system was operated in Richmond, Virginia eight years later, …
Item Type: Technology

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First released in 1991 and branded as “SMART Board” by husband and wife team David Martin and Nancy Knowlton, the interactive whiteboard fuses traditional blackboard-style teaching with contemporary technologies and specialized software.  Boards are…
Item Type: Technology

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After a long time of evolution, printing technology reached a time of change in 1843. Richard March Hoe's family owned a steam-powered printing manufactory. When Richard became the head of the company in 1833, he decided to change the flatbed…
Item Type: Technology

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Filmstrip technology predates this particular DuKane projector, but this device and accompanying strips and soundtrack disc marked a significant step forward in advancing educational technology. This iteration of the filmstrip projector incorporated…
Item Type: Technology

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Google’s introduction of a low-cost, easily-assembled handheld device through which to view images echoes Oliver Wendell Holmes’ invention of the handheld stereoscope over 150 years prior. Google’s device utilizes a contemporary smartphone (not…
Item Type: Technology

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While LaserDiscs and their accompanying players never reached widespread commercial success in the home video market, the technology fared significantly better as an educational tool. An analog format rather than optical—such as a CD or DVD, where…
Item Type: Technology

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After the invention of the incandescent light bulb, the use of projection devices began to shift away from oil and gas-powered contraptions such as the traditional magic lantern. The variant of this lantern device that used an incandescent bulb…
Item Type: Technology

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A camera phone is a smartphone which can capture photographs and often record video using one or more built-in digital cameras. The first camera phone was sold in 2000 in Japan, a Sharp J-SH04 J-Phone model (Hoista 2012). Most camera phones are…
Item Type: Technology

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In 1975, Steven Sasson, an engineer at Kodak, invented and built the first self-contained electronic camera that used a charge-coupled device image (Mccullough 2016). The camera weighed 8 pounds and had only 0.01 megapixels and the image been…
Item Type: Technology

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The Red Flag 20 is a copy of the Leica M3 and Leica M4. This product made in Shanghai in about 1971-76. It has the Leica M lens-mount, and three lenses were made for it. The standard lens is a 50 mm f/1.4 Ref Flag 20, a copy of the Summilux; the…
Item Type: Technology

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In the late 1940s, the period of the Republic of China has been made in China's first camera, SELO camera. SELO camera was made by Zheng Chonglan in 1947, during the Chinese Civil War. When it comes to Chinese camera, people cannot avoid the father…
Item Type: Technology

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The concept of the Loading Coil – an inductor that is inserted into an electronic circuit to increase its inductance -- was discovered by Oliver Heaviside, a rather eccentric British fellow while studying the problem of the slow signaling speed of…
Item Type: Technology

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The advent of color television is another great leap in the development of television technology and industry. It not only has fundamentally improved the television technology but also has greatly changed people’s television watching experience. The…
Item Type: Technology

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At the turn of the 19th Century, the invention of the steam-powered printing press by Fredrich Koenig doubled the speed at which newspapers could be printed by hand – 800 sheets/hour. American, Richard Hoe created the lithographic Rotary Printing…
Item Type: Technology
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