What is a micro-sub?

A micro-sub (also called a submersible) is a small submarine, often used for exploring under the sea. One of the latest micro-sub is Deep Flight1, Which can dive to a depth of 1,000 metres.

Is it true? Submarines can dive to the bottom of the ocean.

No. The deepest a normal submarine can dive is about 700 metres. If a submarine went any deeper the huge water pressure would crush its hull and water would flood in.

Amazing! Divers who repair undersea pipelines and oil rigs wear strong diving suits, like mini submersibles. They can dive to about 300 metres. The divers have to breathe oxygen mixed with helium, which gives them very squeaky voices!

What are Alvin and Jason Junior?

Alvin is a submersible that carries a crew of three. Jason Junior is a robot submersible that can be operated from Alvin or from a ship on the surface. In 1985, Jason Junior discovered the wreck of the ocean liner Titanic at the bottom of the Atlantic Ocean.

How deep can submersibles go?

Special, extra-strong-hulled submersibles called bathyscaphes can dive many kilometres under the sea. In 1960, the bathyscaphe Trieste made the deepest dive ever — an incredible 10,911 metres into the Marianas Trench in the Pacific Ocean.

Picture Credit : Google