enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Efficient energy use - Wikipedia

   en.wikipedia.org/wiki/Efficient_energy_use

   Cities around the globe light up millions of streets with 300 million lights. [46] Some cities are seeking to reduce street light power consumption by dimming lights during off-peak hours or switching to LED lamps. [47] LED lamps are known to reduce the energy consumption by 50% to 80%. [48] [49]

3. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Fans generate noise from the rapid flow of air around blades and obstacles causing vortexes, and from the motor. Fan noise is roughly proportional to the fifth power of fan speed; halving speed reduces noise by about 15 dB. [27] The perceived loudness of fan noise also depends on the frequency distribution of the noise.

4. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Ceiling fans are usually installed in a space with other lighting fixtures, but if the fan is positioned too close to a light panel or fixture, a strobe or flicker effect may occur. A strobe or flicker effect is a phenomenon which occurs when light brightens and dims consistently as it penetrates and passes through a moving ceiling fan. [ 8 ]

5. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   Since then, increased luminous efficacy and higher-power SMDs have allowed them to be used in applications such as high brightness task lighting, fluorescent and halogen lighting fixture replacements, indirect lighting applications, ultraviolet inspection during manufacturing processes, set and costume design, and growing plants.

6. Wikipedia:Vital articles/List of all articles - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

   (2,876) T Tauri star · T cell · T-Series (company) · T-shirt · T-square · T-top · T. Allston Brown · T. Berry Brazelton · T. Boone Pickens · T. E. Hulme · T. E. Lawrence · T. H. Green · T. H. White · T. Nelson Downs · T. S. Eliot · T.A.T.u. · TGV · TIFF · TLC (group) · TNT · TNT equivalent · TRAPPIST-1 · TRS-80 · TSMC · TU Dresden · TV Guide · TVXQ · TW Hydrae · Ta ...