You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: INVENTIONS 
Clue: Josephine Cochrane's 1886 version of this consisted of a copper boiler, wire baskets & a pump
a dishwasher

Category: MODERN MATERIALS 
Clue: Introduced in the '70s to replace steel belting on high-speed tires, it's called stronger than steel & lighter than nylon
kevlar

Category: RELIGION 
Clue: On Dec. 19, 1894 2 books were formally ordained as the impersonal pastor of this denomination

christian scientist