Henry Wizentop
Attic helmet, Corinthian helmet, Beotian helmet, Chalcidian helmet, Illyrian helmet, Boar's tusk helmet.
who is the inventor
An astronaut's helmet is called a space helmet or spacesuit helmet. It is a crucial component of an astronaut's spacesuit as it provides oxygen and protection in the vacuum of space.
The benefits of a Protec helmet are many. This helmet has been called the 'classic bike helmet'. It protects your head when you are participating in sports that can cause damage if a helmet is not used.
A climbing helmet offers better protection for outdoor activities compared to a bike helmet.
Beards are not in the helmet. Only the upper portions of the head are in the helmet.
Helmet-To-Helmet are not allowed. If that's what you were asking.
Auto darkening welding helmet is the best welding helmet.
Inventor
Athena was the inventor of many useful things and crafts, e.g. weaving. She is usually depicted wearing a helmet and breast-armor, carrying a lance. I expect she laid off those attrbutes when weaving.
a helmet -> un casque
Yes a helmet is a solid