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2. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered ...

3. Honda RC211V - Wikipedia

   en.wikipedia.org/wiki/Honda_RC211V

   W: 600 mm. Weight. 148 kg ( dry) Fuel capacity. 24 L. The Honda RC211V is a 990 cc (60 cu in) four-stroke race motorcycle from HRC ( Honda Racing Corporation) developed in 2001 to replace the two-stroke Honda NSR500 . It was developed as a direct result of major changes to the regulations for the World Championship motorcycle road racing 500 cc ...

4. Blink Home - Wikipedia

   en.wikipedia.org/wiki/Blink_Home

   Blink is an American home automation company which produces battery-powered home security cameras. The company was founded in 2009 by Peter Besen, Don Shulsinger, Dan Grunberg, Stephen Gordon, and Doug Chin. The company was initially started as Immedia Semiconductor Inc in 2009, but pivoted into a consumer electronics company. [1]

5. History of the camera - Wikipedia

   en.wikipedia.org/wiki/History_of_the_camera

   The Nouvel Appareil Gaudin camera had a metal disc with three differently-sized holes mounted on the front of the lens. Rotating to a different hole effectively provided variable f-stops, allowing different amounts of light into the camera. [16]: 28 Instead of using nested boxes to focus, the Gaudin camera used nested brass tubes.

6. Wireless power transfer - Wikipedia

   en.wikipedia.org/wiki/Wireless_power_transfer

   In 2015, researchers at the University of Washington introduced power over Wi-Fi, which trickle-charges batteries and powered battery-free cameras and temperature sensors using transmissions from Wi-Fi routers. [97] [98] Wi-Fi signals were shown to power battery-free temperature and camera sensors at ranges of up to 20 feet. It was also shown ...

7. High schoolers' mental health shows small improvement in a US ...

   www.aol.com/lifestyle/high-schoolers-mental...

   August 6, 2024 at 12:43 PM. There are small signs of improvement in the mental health of U.S. teenagers, a government survey released Tuesday said, but the share of students — particularly girls ...