When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Light-up shoes - Wikipedia

   en.wikipedia.org/wiki/Light-up_shoes

   A typical light-up shoe for adults, where the LED ribbon is inside a translucent sole. Light-up shoes or LED shoes are footwear that have built-in light-emitting diodes, usually in the sole of the shoe. These specialized shoes may be used at parties, festivals, raves and to increase visibility. [1] Light-up shoes first became available in 1992.

3. File:Shoe sizes for children by foot length (multilingual).svg

   en.wikipedia.org/wiki/File:Shoe_sizes_for...

   English: Shoe sizes for children in Mondopoint, EU, UK and US systems, measured by foot length (multi-lingual) Русский: Размеры обуви для детей в системах Мондопойнт, EU, UK, and US, измеренные по длине стопы (несколько языков)

4. Shoe size - Wikipedia

   en.wikipedia.org/wiki/Shoe_size

   A shoe size is an indication of the fitting size of a shoe for a person. There are a number of different shoe-size systems used worldwide. While all shoe sizes use a number to indicate the length of the shoe, they differ in exactly what they measure, what unit of measurement they use, and where the size 0 (or 1) is positioned.

5. Luminous intensity - Wikipedia

   en.wikipedia.org/wiki/Luminous_intensity

   Luminous intensity is the perceived power per unit solid angle. If a lamp has a 1 lumen bulb and the optics of the lamp are set up to focus the light evenly into a 1 steradian beam, then the beam would have a luminous intensity of 1 candela.

6. Luminous flux - Wikipedia

   en.wikipedia.org/wiki/Luminous_flux

   In photometry, luminous flux or luminous power [citation needed] is the measure of the perceived power of light. It differs from radiant flux , the measure of the total power of electromagnetic radiation (including infrared , ultraviolet , and visible light), in that luminous flux is adjusted to reflect the varying sensitivity of the human eye ...

7. Luminous efficacy - Wikipedia

   en.wikipedia.org/wiki/Luminous_efficacy

   The former sense is sometimes called luminous efficacy of radiation, [4] and the latter luminous efficacy of a light source [5] or overall luminous efficacy. [ 6 ] [ 7 ] Not all wavelengths of light are equally visible, or equally effective at stimulating human vision, due to the spectral sensitivity of the human eye ; radiation in the infrared ...