You answered it yourself- they have telephones so Bell crewmen are in constant contact with the Mother ship. A diving Bell is captive and cannot operate independently- unllike a submarine or Bathyscaphe. a Bathysphere is a spherical form of diving bell and has the same limitations. the modern bells - used in real ocean work have some form of telephone cable device so they are in constant contact with the surface vessel. Radio won"t work underwater, period.
Diving bell spider was created in 1758.
In 1616, the German inventor Kessler introduced his diving bell with glass ports
Eads
It is a device that looks like a bell and helps you dive into very deep places. the bell hosts the people in it sheilding them from the pressure.
you go to big catch and talk to the claws he will teach and give you a gem diving bell.
The only invention i think he invented was the diving bell. It was a bell that allowed divers to stay at about 60 ft (18 m) for an hour and a half under water. The bell is made of a wooden shell with windows to let in light from the surface. Air was supplied to divers through leather tubes connected to air casks that could be lowered into the water when needed. These early inventions led to the development of more sophisticated diving bells that are used today.
brown to black
You must first get to the mission with the diving bell and then you can go to diving locations
Julian Schnabel
In 1535, Guglielmo de Lorena
Its enemies are frogs and fish.
northern Europe and Asia