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n blue sky laws
Laws formulated in the US in the early 20th century to protect unwitting investors
from fraudulent schemes involving fake securities and so called in reference to
a judge’s statement that such schemes had no more basis than ‘so many feet of
blue sky’.
n blue-sky project, research
Theoretical research carried out without a specific aim or regardless of any possible
practical application. See sky blue.
n blue stars
The colour of a star indicates the range of its temperature with blue stars being
the hottest. Blue-white is the next in intensity followed by white, yellow, orange
and then red. Stars are divided into seven types referred to by the letters: O B
A F G K and M – M stars being the coolest. Each star type is further classified
by the numbers 0 to 9 – 9 being the coolest so that the sun is classified as a G2
indicating that it is yellow in colour and has a surface temperature of between
5,000 and 6,000 degrees Kelvin.
n blue-stocking
An epithet disparaging of an over-intellectual woman described by JJ Rousseau
as ‘a woman who will remain a spinster as long as there are sensible men on earth’.
However, according to Michael Quinion in his erudite World Wide Words the
first blue-stocking was possibly male – namely, the 18th century poet Benjamin
Stillingfleet – who could not afford the black silk stockings customarily worn by
the gentry at the literary evenings to which he was invited.
c bluet
The blue of the cornflower – bluet being French for ‘cornflower’ and a variety
of US cornflower.
n bluetooth
A revolutionary new system allowing electronic devices to communicate with each
other over short distances by means of radio waves. Bluetooth technology, for
example, allows mobile telephones to communicate with a personal computer
instructing it to turn on or off a particular piece of equipment in the home. So
called after King Bluetooth of Denmark a powerful Viking who in the 10th century
managed to force peace on hostile factions.