Dogs are most contagious during the two- to four-day incubation period for the virus, when they are infected and shedding the virus in their nasal secretions but are not showing signs of illness. Almost all dogs exposed to CIV will become infected, and the majority (80%) of infected dogs develop flu-like illness.
SWR or Standing Wave Ratio is one of the most misunderstood terms in amateur radio. Even though every antenna and transmission line book that I have seen is quick to point that out, it still is the source of many misconceptions.
Silicon-Controlled Rectifier(SCR) [edit | edit source]. An SCR is a machine that, once powered, holds a single pulse until it can no longer be powered. In redstoning, a simple SCR can be made by making a repeater power itself. This simple SCR can be used for many things.