Problem: Following the glass batch preparation and mixing, the raw materials are transported to the furnace. Soda-lime glass for mass production is melted in gas fired units. Smaller scale furnaces for specialty glasses include electric melters, pot furnaces, and day tanks. After melting, homogenization and refining (removal of bubbles), the glass is formed. Flat glass for windows and similar applications is formed by the float glass process, developed between 1953 and 1957 by Sir Alastair Pilkington and Kenneth Bickerstaff of the UK's Pilkington Brothers, who created a continuous ribbon of glass using a molten tin bath on which the molten glass flows unhindered under the influence of gravity. The top surface of the glass is subjected to nitrogen under pressure to obtain a polished finish. Container glass for common bottles and jars is formed by blowing and pressing methods. This glass is often slightly modified chemically (with more alumina and calcium oxide) for greater water resistance. Further glass forming techniques are summarized in the table Glass forming techniques.
Who were the inventors of the float glass process?
The answer is the following: Alastair Pilkington and Kenneth Bickerstaff

Problem: A nonprofit organization (NPO, also known as a non-business entity) is an organization whose purposes are other than making a profit. A nonprofit organization is often dedicated to furthering a particular social cause or advocating for a particular point of view. In economic terms, a nonprofit organization uses its surplus revenues to further achieve its purpose or mission, rather than distributing its surplus income to the organization's shareholders (or equivalents) as profit or dividends. This is known as the distribution constraint. The decision to adopt a nonprofit legal structure is one that will often have taxation implications, particularly where the nonprofit seeks income tax exemption, charitable status and so on.
What is the purpose of an NPO?
The answer is the following: furthering a particular social cause or advocating for a particular point of view

Problem: The majority of Paris' salaried employees fill 370,000 businesses services jobs, concentrated in the north-western 8th, 16th and 17th arrondissements. Paris' financial service companies are concentrated in the central-western 8th and 9th arrondissement banking and insurance district. Paris' department store district in the 1st, 6th, 8th and 9th arrondissements employ 10 percent of mostly female Paris workers, with 100,000 of these registered in the retail trade. Fourteen percent of Parisians work in hotels and restaurants and other services to individuals. Nineteen percent of Paris employees work for the State in either in administration or education. The majority of Paris' healthcare and social workers work at the hospitals and social housing concentrated in the peripheral 13th, 14th, 18th, 19th and 20th arrondissements. Outside Paris, the western Hauts-de-Seine department La Defense district specialising in finance, insurance and scientific research district, employs 144,600, and the north-eastern Seine-Saint-Denis audiovisual sector has 200 media firms and 10 major film studios.
What industry is located in the 1st, 6th, 8th and 9th arrondissements?
The answer is the following: department store

Problem: Jefferson's concept of "separation of church and state" first became a part of Establishment Clause jurisprudence in Reynolds v. U.S., 98 U.S. 145 (1878). In that case, the court examined the history of religious liberty in the US, determining that while the constitution guarantees religious freedom, "The word 'religion' is not defined in the Constitution. We must go elsewhere, therefore, to ascertain its meaning, and nowhere more appropriately, we think, than to the history of the times in the midst of which the provision was adopted." The court found that the leaders in advocating and formulating the constitutional guarantee of religious liberty were James Madison and Thomas Jefferson. Quoting the "separation" paragraph from Jefferson's letter to the Danbury Baptists, the court concluded that, "coming as this does from an acknowledged leader of the advocates of the measure, it may be accepted almost as an authoritative declaration of the scope and effect of the amendment thus secured."
What word is not defined in the Constitution?
The answer is the following:
religion