The French explorer Jacques – Yves Cousteau was born on June 11, 1910. He invented the Aqualung diving apparatus, along with Emile Gagnan. Cousteau was introduced to Gagnan by his father, who worked for a company in Paris, specialising in compressed gases. Gagnan, an engineer, had been working on valve designs. Before the aqualung, divers used a diving suit and a helmet, which were heavy and required a hose that was attached to an air compressor on the land or a
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