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Electronic Calculators WH Smith high power solar cell calculator, c 1990s

Electronic Calculators WH Smith high power solar cell calculator, c 1990s
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Largest available format 2373 × 3504 px 1 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB] Online Purchase
Large 2373 × 3504 px 201 × 297 mm 783 KB
Medium 694 × 1024 px 59 × 87 mm 547 KB

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IMAGE number
UIS5079520
Image title
Electronic Calculators WH Smith high power solar cell calculator, c 1990s
Auto-translated text View Original Source
Location
Science Museum, London, UK
Medium
object
Image description

Electronic Calculators WH Smith high power solar cell calculator, c 1990s. Solar cells work as a result of the photoelectric effect. Instead of pushing electrons out of metal, light falling on a solar cell is used to loosen electrons within a semiconductor, usually silicon. The light energy arrives at the cell in packets, or photons, and these dislodge electrons within the silicon to create the current. The amount of electricity produced by an individual solar cell is relatively small, but sufficient to power a small device such as this pocket calculator. ©SSPL/Science Museum

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SSPL/UIG / Bridgeman Images
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