Show power from tides and winds at the recent meeting of the british association the question of economical production of power from tides and winds was aas again under discussion and it has been taken up widely by eclen tine journals in europe la revue calls attention to a ss tern of utilizing the power of sea waves naves to actuate a dynamo which has been employed during the last six sl months at the mouth of the river girande gironde an air chamber is iq connect ed with a wall nell which communicates with the sea at a depth below the level of the lowest aldei ny by the ad ance and recession of the waves aves changes of pressure are produced in the air chamber and a system of valves enables the resulting air cur rents to be applied to rotating a kind hind turbine it Is said that the apparatus equally well in calm and in stormy weather |