Aluminum.
aluminum
because why the hell not
If you touch your helmets together you can hear each other with out radio. (space does not transmit sound)
Because gold is one of the least reactive substances know to man.
No. Whatever size helmet you have you should get the visor size for best use.
On the visor
On the visor
Check hockeymonkey.com they have a comparison guide listing helmets to visors matches
A black or clear visor
Aluminum.
They wear spacesuits, including helmets, to protect themselves from the outer space environment. It is basically a simple space craft.
Thin aluminum coating on visor to block strong UV and dim bright light in space from sun to protect astronaut's eyes. It acts like a mirror so all you see on video is reflection of outside.
yes
aluminum
The helmet takes the place of a safety helmet and gives a firm attachment to the flip-up visor. When welding the visor is dropped to protect the eyes from the light coming from the welding torch. It is obviously difficult to see anything through the visor except the filtered welding torch flame. The visor can be flipped up to let the welder clearly see the result of the weld, or to move to another spot.
helmets