Determining the relationships between the various eukaryotic groups--the protists, plants, animals, and fungi --has been a difficult problem. Some biologists have even predicted that the phylogeny will never be known. Part of the difficulty is that the splits between many of the lineages of eukaryotes are ancient. Another difficulty is
Easy Box is a UL-approved electrical junction box designed to replace conventional electrical boxes. Easy Box is a UL-approved electrical junction box designed to replace conventional electrical boxes. Comprised of a detachable cover and base for housing standard electrical wiring, the box is child-proof and can be used for various types of wiring, including all common gauges of electrical wire, telephone, cable, and conduit.
Converting Mechanical Exit Devices to Electrical: Electric Latch Retraction. June 17, 2009 at 11:03 pm | Posted in Industry Topics, Product Reviews | 2 Comments. Tags: electric latch retraction, exit device, fire-rated exit devices, latch pull back, panic bar, remote dogging. Electric latch retraction, an optional feature on many models of exit devices (panic bars) may be known by a number of names.