Modern
An alternative to the diving helmet that allows communication with the surface is the full face diving mask. These cover the diver's face and are held onto his head by adjustable straps.
"Diving helmet" sometimes means a hard safety helmet like a workman's helmet that covers the top and back of the head, but is not sealed. These may be worn with a full-face mask to provide impact protection.
During the First World War the British Army used a few diving helmets out of water as emergency protection from mustard gas.
Read more about this topic: Kirby Morgan
Famous quotes containing the word modern:
“No idea is so antiquated that it was not once modern. No idea is so modern that it will not someday be antiquated.”
—Ellen Glasgow (1874–1945)
“The City of New York is like an enormous citadel, a modern Carcassonne. Walking between the magnificent skyscrapers one feels the presence on the fringe of a howling, raging mob, a mob with empty bellies, a mob unshaven and in rags.”
—Henry Miller (1891–1980)
“Most of our modern portrait painters are doomed to absolute oblivion. They never paint what they see. They paint what the public sees, and the public never sees anything.”
—Oscar Wilde (1854–1900)