07-12-2017, 05:57 AM
dave9t5, you may talk one day to a metallurgist about your "not incorrect". 
Talking about copper or a copper alloy with entirely different technological behavior and purpose? No teacher will confirm this as not "incorrect". Besides, copper is also used with nickel and aluminum, so it could mean that as well? Hardly. It has a reason to use the words "brass", "bronze" - or you prefer to talk about CW509L (60% copper, rest zinc)? It's helpful to use the right words. And speaking of it: We Europeans can call ourselves lucky to live in comparatively small countries/language regions.
Last week I met Scots, English, Americans, Maltese, Australians, Canadians and South-Africans. And all talking "English" as native speakers... no need to say more.
And why am I talking this crap? I'm endlessly bored about the endless row of 50 mm lenses with manual focus. Apparently every backyard workshop in China wants to become a big player now (and sometimes those backyard workshop turn out to be the Foxcon of optics...)
Talking about copper or a copper alloy with entirely different technological behavior and purpose? No teacher will confirm this as not "incorrect". Besides, copper is also used with nickel and aluminum, so it could mean that as well? Hardly. It has a reason to use the words "brass", "bronze" - or you prefer to talk about CW509L (60% copper, rest zinc)? It's helpful to use the right words. And speaking of it: We Europeans can call ourselves lucky to live in comparatively small countries/language regions.Last week I met Scots, English, Americans, Maltese, Australians, Canadians and South-Africans. And all talking "English" as native speakers... no need to say more.
And why am I talking this crap? I'm endlessly bored about the endless row of 50 mm lenses with manual focus. Apparently every backyard workshop in China wants to become a big player now (and sometimes those backyard workshop turn out to be the Foxcon of optics...)