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2. Occupancy sensor - Wikipedia

   en.wikipedia.org/wiki/Occupancy_sensor

   Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.

3. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   PIR sensors are commonly used in security alarms and automatic lighting applications. PIR sensors detect general movement, but do not give information on who or what moved. For that purpose, an imaging IR sensor is required. PIR sensors are commonly called simply "PIR", or sometimes "PID", for "passive infrared detector".

4. Stage lighting accessories - Wikipedia

   en.wikipedia.org/wiki/Stage_lighting_accessories

   Barn doors, or occasionally a set of barn doors, are an attachment fitted to the front of a Fresnel lantern, a type of lantern used in films, television, and theatres. [1] The attachment has the appearance of a large set of barn doors, but in fact there are four leaves, two larger and widening on the outside, two smaller and getting narrower ...

5. Woman Accused of Trying to Sexually Assault Boy She'd ... - AOL

   www.aol.com/lifestyle/woman-accused-trying...

   A Pennsylvania woman faces indecent assault charges after allegedly attempting to ply two tween boys with alcohol and sexually assault one of them after they shoveled snow from her driveway.

6. Colorado apartment to close after multiple arrests, claims of ...

   www.aol.com/colorado-apartment-close-multiple...

   An Aurora, Colorado judge granted the 'emergency closure' of The Edge at Lowry Apartments after multiple arrests and rumored gang activity.

7. NFL playoff picture, clinching scenarios Week 16: Ravens ...

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   7. Denver Broncos (9-6), wild card No. 3: They had a win-and-in scenario Thursday to stamp their first postseason trip since winning Super Bowl 50 nine years ago. Now, they can't get in this ...