IUPAC definition. polymerization: The process of converting a monomer or a mixture of monomers into a polymer. An example of alkene polymerization, in which each styrene monomer's double bond reforms as a single bond plus a bond to another styrene monomer.
There is evidence to indicate the Big Bang may have resulted from another, earlier universe collapsing in on itself, rather than from expanding from a point on infinitely hot and dense material. Instead, the universe appears to be going through constant phases of expansion (as it is at present) and contraction in a never-ending cycle. This theory of universe formation, known as the Big Bounce, was first proposed almost a century ago.
Discoveries in astronomy and physics have shown beyond a reasonable doubt that our universe did have a beginning: It all started with an explosion known as the Big Bang (BB). It is the English astronomer Fred Hoyle ( 1915 - 2001) who is credited with coming up with this name during a 1949 radio broadcast.