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Nest Box Camera
A nest box camera, also known as a bird box camera, is a photographic device fitted inside a nest box in order to monitor its inhabitants. Many Internet sites broadcast video streams and still images of nesting birds in real time. Technology Most cameras uses visible light to capture images. Infrared cameras may be used alone or in conjunction with visible light cameras if the birds are active at night. Infrared light is not dangerous to nesting birds. Wired and wireless systems are used. A webcam is frequently used by enthusiasts but the quality is usually standard-definition. Wired network cameras allow the streaming of high-definition video to the internet or to internal or external storage. Some nest box cameras have microphone A microphone, colloquially called a mic (), or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Tit -Cyanistes Caeruleus -inside Nest Box-4
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term ''blue'' generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultrama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
