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  2. Theory of solar cells - Wikipedia

    en.wikipedia.org/wiki/Theory_of_solar_cells

    In thick solar cells there is very little electric field in the active region outside the space charge zone, so the dominant mode of charge carrier separation is diffusion. In these cells the diffusion length of minority carriers (the length that photo-generated carriers can travel before they recombine) must be large compared to the cell ...

  3. Solar-powered calculator - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_calculator

    Solar-powered calculators are hand-held electronic calculators powered by solar cells mounted on the device. [1] They were introduced at the end of the 1970s. [2]Amorphous silicon has been used as a photovoltaic solar cell material for devices which require very little power, such as pocket calculators, because their lower performance compared to conventional crystalline silicon solar cells is ...

  4. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    The above is not limited to subtractions, try = 1 + 1.405*2^(-48) in one cell, Excel rounds the display to 1,00000000000000000000, and = 0.9 + 225179982494413×2^(-51) in another, same display [d] above, different rounding for value and display, violates one of the elementary requirements in Goldberg (1991) [8] who states:

  5. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Website. products .office .com /en-us /excel. Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS. It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  6. M58 MICLIC - Wikipedia

    en.wikipedia.org/wiki/M58_MICLIC

    The line charge is 350 feet (107 meters) long and contains 5 pounds (2.27 kg) per linear foot of C-4 explosive. [2] If a MICLIC fails to detonate normally, it can be manually activated by time-delay fuses every few feet along its length. [8] The M147 firing kit can also be mounted on the M60 AVLB and the M1150 Assault Breacher Vehicle.

  7. Elementary charge - Wikipedia

    en.wikipedia.org/wiki/Elementary_charge

    The elementary charge, usually denoted by e, is a fundamental physical constant, defined as the electric charge carried by a single proton or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge −1 e. [ 2][ a] In the SI system of units, the value of the elementary charge is exactly ...

  8. Biggest upset of the Olympics? World No. 1 table tennis ...

    www.aol.com/sports/biggest-upset-olympics-world...

    Sweden's Truls Möregårdh pulled off the upset of the 2024 Paris Olympics after he defeated China's Wang Chuqin, the top-ranked table tennis player in the world, in men's singles action on Wednesday.

  9. Shaped charge - Wikipedia

    en.wikipedia.org/wiki/Shaped_charge

    Shaped charge. 1: Ballistic cap; 2: Air-filled cavity; 3: Conical liner; 4: Detonator; 5: Explosive; 6: Piezo-electric trigger. A shaped charge is an explosive charge shaped to focus the effect of the explosive's energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, initiating nuclear weapons ...