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In November 2016, Kidde recalled over 3.6 million (+1.5 million in Canada) NightHawk model KN-COSM-IB combination smoke alarms due to the 7 year "end of life" signal timer being restarted when the battery was replaced, meaning that the alarm cannot signal that its sensors have expired.
Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...
A tomato greenhouse in the Netherlands. The advantage of mesocosm studies is that environmental gradients of interest (e.g., warming temperatures) can be controlled or combined to separate and understand the underlying mechanism(s) affecting the growth or survival of species, populations or communities of interest.
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Kodak Retinette is a classic series of cameras manufactured by the Eastman Kodak company. They were introduced in 1939 as a less expensive alternative to the Kodak Retina series. [ 1 ] The first models were of the folding type using bellows and their lenses had three elements as compared to the four element Tessar lenses ( Greek : Tessera ...
Daisy Outdoor Products (known primarily as Daisy) is an American airgun manufacturer known particularly for their lines of BB guns. It was formed in 1882 initially as the Plymouth Iron Windmill Company in Plymouth, Michigan, to manufacture steel windmills , and from 1888 started bundling BB-caliber air guns with each windmill purchase as a ...