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What is a Gale warning? What we know as boaters in 9 states warned to avoid going into the waterSurfer Today states that a Gale wind can be monitored based on ... etc. For those at sea, it is issued by a flag or pennant system. For a daytime signal, two red pennants are rendered, while ...
The novel wind and solar energy-harvesting flags have been developed using flexible piezoelectric ... within a number of potential practical applications in avionics, land and sea remote locations, ...
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