People are listed by last name first, so he would be C for Cousteau, Jacques.
Jacques Cousteau is typically listed under C for Cousteau, not J for Jacques.
People aren't listed in the dictionary very often. Try an encyclopedia, under C.
mostly under the sea
YES
Jacques-Yves Cousteau
Conshelf Two
he was exploring all over the world under water.
The father of modern diving and under water explorer. Every scuba student learns of Cousteau's contributions to the diving world. Yes, Jacques Yves Cousteau is well know among both divers and adventurers alike.
Two French men, Jacques-Yves Cousteau (June 10, 1910-June 25, 1997) and Emile Gagnan (November 1900-1979) invented the Aqualung in 1943. It was the first open-circuit free-swimming underwater breathing set.Jacques Cousteau amd Emile Gagnan.It was invented in 1943 by Jacques Yves Cousteau and Emil Gagnan. Wikipedia has a detailed page on the subject - see related link.
One of the many things Jacques Cousteau is famous for is the creation of scuba gear. Scuba stands for : Self Contained Underwater Breathing Apparatus.
he wants to study marine life but you have to do that under water and it takes some time to study marine life so he created something that will allow you to stay under water for a long period of time.
He invented the Aqualung, so that he could dive under the water to study marine life.
Use an encyclopedia. This would be the most helpful in your search for this manufacturer. Check also the manufacturer website as they most likely have some sort of company history listed there. Check under the about link.