enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Photoresistor - Wikipedia

   en.wikipedia.org/wiki/Photoresistor

   Three photoresistors with scale in mm Large CdS photocell from a street light. A photoresistor is less light-sensitive than a photodiode or a phototransistor. The latter two components are true semiconductor devices, while a photoresistor is a passive component that does not have a PN-junction. The photoresistivity of any photoresistor may vary ...

3. Photoelectric sensor - Wikipedia

   en.wikipedia.org/wiki/Photoelectric_sensor

   Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver.

4. Twilight switch - Wikipedia

   en.wikipedia.org/wiki/Twilight_switch

   Electromechanical twilight switch. The most commonly used twilight switches are of the electromechanical type, which differ from electronic ones by the use of piloted relays already integrated in the circuit itself, and which allow small loads to be directly connected (for example, a single lamp).

5. Time switch - Wikipedia

   en.wikipedia.org/wiki/Time_switch

   An astronomical (or astronomic) timer calculates dawn and dusk times (tracking the sun position) for each day of the year based on the latitude and longitude (or just north/central/south and time zone on more cheaply made ones), and the day of the year (month and date), programmed by the user upon installation in addition to the usual time of day, except in the case of GPS enabled astronomic ...

6. For artist Uta Barth, learning to photograph is a way of ...

   www.aol.com/news/artist-uta-barth-learning...

   Contemporary photographic artist Uta Barth is photographed in front of her piece, titled "…from dawn to dusk. 2022," in her studio in Mar Vista. (Jay L. Clendenin/Los Angeles Times)

7. US farm groups want Trump to spare their workers from ... - AOL

   www.aol.com/news/us-farm-groups-want-trump...

   U.S. farm industry groups want President-elect Donald Trump to spare their sector from his promise of mass deportations, which could upend a food supply chain heavily dependent on immigrants in ...