Problem: In physics, the standard definition of a glass (or vitreous solid) is a solid formed by rapid melt quenching. The term glass is often used to describe any amorphous solid that exhibits a glass transition temperature Tg. If the cooling is sufficiently rapid (relative to the characteristic crystallization time) then crystallization is prevented and instead the disordered atomic configuration of the supercooled liquid is frozen into the solid state at Tg. The tendency for a material to form a glass while quenched is called glass-forming ability. This ability can be predicted by the rigidity theory. Generally, the structure of a glass exists in a metastable state with respect to its crystalline form, although in certain circumstances, for example in atactic polymers, there is no crystalline analogue of the amorphous phase.
What is the tendency to make a glass when cooled called?
The answer is the following: glass-forming ability

Problem: Beginning with the advent of beat match DJing, in which Bronx DJs (Disc Jockeys) including Grandmaster Flash, Afrika Bambaataa and DJ Kool Herc extended the breaks of funk records, a major new musical genre emerged that sought to isolate the percussion breaks of hit funk, disco and soul songs. As hip hop's popularity grew, performers began speaking ("rapping") in sync with the beats, and became known as MCs or emcees. The Herculoids, made up of Herc, Coke La Rock, and DJ Clark Kent, were the earliest to gain major fame. The Bronx is referred to in hip-hop slang as "The Boogie Down Bronx", or just "The Boogie Down". This was hip-hop pioneer KRS-One's inspiration for his thought provoking group BDP, or Boogie Down Productions, which included DJ Scott La Rock. Newer hip hop artists from the Bronx include Big Pun, Lord Toriq and Peter Gunz, Camp Lo, Swizz Beatz, Drag-On, Fat Joe, Terror Squad and Corey Gunz.
What is 'The Boogie Down'?
The answer is the following: The Bronx

Problem: The Paris department store had its roots in the magasin de nouveautes, or novelty store; the first, the Tapis Rouge, was created in 1784. They flourished in the early 19th century, with La Belle Jardiniere (1824), Aux Trois Quartiers (1829), and Le Petit Saint Thomas (1830). Balzac described their functioning in his novel Cesar Birotteau. In the 1840s, with the arrival of the railroads in Paris and the increased number of shoppers they brought, they grew in size, and began to have large plate glass display windows, fixed prices and price tags, and advertising in newspapers.
What factors influenced the increase of department stores in Paris?
The answer is the following: the arrival of the railroads in Paris and the increased number of shoppers they brought

Problem: Until the 19th century, Ottoman prose did not develop to the extent that contemporary Divan poetry did. A large part of the reason for this was that much prose was expected to adhere to the rules of sec (, also transliterated as seci), or rhymed prose, a type of writing descended from the Arabic saj' and which prescribed that between each adjective and noun in a string of words, such as a sentence, there must be a rhyme. Nevertheless, there was a tradition of prose in the literature of the time, though exclusively non-fictional in nature. One apparent exception was Muhayyelat ("Fancies") by Giritli Ali Aziz Efendi, a collection of stories of the fantastic written in 1796, though not published until 1867. The first novel published in the Ottoman Empire was by an Armenian named Vartan Pasha. Published in 1851, the novel was entitled The Story of Akabi (Turkish: Akabi Hikyayesi) and was written in Turkish but with Armenian script.
What did the rules of sec require?
The answer is the following:
between each adjective and noun in a string of words, such as a sentence, there must be a rhyme