Connect the pictures to a word, or an element.
(whats she holding up)
(His name is a variation of the term)
(needs no explanation)
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Sunday, November 14, 2010
QUESTION 395: Caught UNaware
Since the late 1950s,[aerospace engineers have used the term ___X____ when referring to unusual or costly materials, or when theoretically considering a material perfect for their needs in all respects, except that it does not exist. The word ___X_____ may well have been coined in the aerospace industry to refer to materials capable of withstanding the extreme temperatures expected in reentry. Aerospace engineers are frequently tempted to design aircraft which require parts with strength or resilience beyond that of currently available materials.
However, as of 2009, due to a major revolution in a certain sphere, the term ____X____ has shed its engineering endearments for a more contemporary one, and ____X_____ has entered the popular lexicon, although it still bears the same meaning.
Question:
1) Id X
2) What happened in 2009 to cause this term to come into popular usage.