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  2. Specific modulus - Wikipedia

    en.wikipedia.org/wiki/Specific_modulus

    Specific modulus is a materials property consisting of the elastic modulus per mass density of a material. It is also known as the stiffness to weight ratio or specific stiffness.

  3. CES (trade show) - Wikipedia

    en.wikipedia.org/wiki/CES_1972

    CES (/ ˌ s i. i. ˈ ɛ s /; formerly an initialism for Consumer Electronics Show) [3] is an annual trade show organized by the Consumer Technology Association (CTA). Held in January at the Las Vegas Convention Center in Winchester, Nevada, United States, the event typically hosts presentations of new products and technologies in the consumer electronics industry.

  4. Machine taper - Wikipedia

    en.wikipedia.org/wiki/Machine_taper

    The rate of taper is 1:20 on diameter, in other words 0.600" on diameter per foot, .050" on diameter per inch. Tapers range from a Number 2 to a Number 20. The diameter of the big end in inches is always the taper size divided by 8, the small end is always the taper size divided by 10 and the length is the taper size divided by 2.

  5. Dubai - Wikipedia

    en.wikipedia.org/wiki/Dubai

    It is the world's fastest-growing free zone and has been nominated as "Global Free Zone of the Year 2016" by The Financial Times Magazine. Dubai is also known as the City of Gold because a major part of the economy is based on gold trades, with Dubai's total gold trading volumes in H1 2011 reaching 580 tonnes, with an average price of US$1,455 ...

  6. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    By 2009, all manufacturers had discontinued the development of new products for the 1.3-inch, 1-inch and 0.85-inch form factors due to falling prices of flash memory, [127] [128] which has no moving parts. While nominal sizes are in inches, actual dimensions are specified in millimeters.

  7. Personal computer - Wikipedia

    en.wikipedia.org/wiki/Personal_computer

    An artist's depiction of a 2000s-era desktop-style personal computer, which includes a metal case with the computing components, a display and a keyboard (mouse not shown). A personal computer, often referred to as a PC or simply computer, is a computer designed for individual use. [1]

  8. Solar panel - Wikipedia

    en.wikipedia.org/wiki/Solar_panel

    Solar array mounted on a rooftop. A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light.

  9. Atomic bombings of Hiroshima and Nagasaki - Wikipedia

    en.wikipedia.org/wiki/Atomic_bombings_of...

    The city was defended by five batteries of 70 mm and 80 mm (2.8 and 3.1 inch) anti-aircraft guns of the 3rd Anti-Aircraft Division, including units from the 121st and 122nd Anti-Aircraft Regiments and the 22nd and 45th Separate Anti-Aircraft Battalions. In total, an estimated 40,000 Japanese military personnel were stationed in the city.