Encyclopedia > Flint glass

Article Content

Flint glass

Flint glass is a glass that contains lead.

Flint glasses have an index of refraction between 1.57-1.75. Lenses of flint glasses are often used with crown glass lenses in multi-component lenses because of their complementary properties.

Featured Article

Bullying

... merely designated anyone who assumed power for any period of time without a legitimate basis of authority. The first to have the title of "Tyrant" was Pisistratus in ...