Container glass is soda-lime glass, produced by blowing and pressing techniques, while some laboratory glassware is made from borosilicate glass. Container glass is used in the following: Container glass Container glass is a type of glass for the production of glass containers, such as bottles, jars, drinkware, and bowls. Container glass stands in contrast to "flat glass" (used for windows, glass doors, transparent walls, windshields) and "glass fiber" (used for thermal insulation, in fiberglass composites, and optical communication). Container glass has a lower magnesium oxide and sodium oxide content than flat glass, and a higher Silica, Calcium oxide, and Aluminum oxide content.
Sikivu Hutchinson challenges the social conservatism of the Black Church with respect to abortion, gay rights and women's rights. Hutchinson is also the editor of blackfemlens blog and is a frequent contributor to the "LA Progressive", an online social justice magazine. Hutchinson has challenged the lack of racial diversity and attention to institutional racism in the secular and New Atheist movements, and has also critiqued what she perceives to be their fixation on scientism at the expense of social justice. She has championed the inclusion of anti-racism, anti-sexism, and anti-heterosexism in mainstream secular humanist and New Atheist discourse. She has also written