Keowee courier. [volume] (Pickens Court House, S.C.) 1849-current, 1898-09-22
I lsoIle Aeeldeatas nYentionIa.

ttiniaa sioIkSs sioIk,S B !, tliold
Sohwartz, having put a composition
ct sulphur end sa;spetor ;H 4 q mortar,
It took fire, sssa the sses, ON 81 shat sof :
cred it was blown off with great yio-
lence, which accident led the ohem-
ist TO think it might be used to much
advantage in attacking fortified
places. He accordingly added to it
a quantity Of charcoal to render it
more apt to take fire and increase
combustion. 81 &
Nh Leaden shot are attributed to a
Bristol plumber, who, one night
about the year 1888, chad a dream
which was not all q DREAM" that he
was out in a shower of molten lead,
which fell in the form of spherical
drops. His curiosity being aroused
ne went next day to the top of a
church and poured some melted lead
into vessel of water lying below.
To his great delight lie found that
the lead had gathered into beautifully
formed globular balls, and he at once
took out q patent. ...
A Nuremberg glass cutter hap
pened to let some aqua fortis fall
upon his spectaoles, and noticed that
the glass was corroded and softened
where tho acid had touched it. TAX
ing the hint, he made liquid, then
drew some figures upon a piece of
glass, covered them with varnish,
applied his corroding fluid, and cut
away the glass round his drawing.
When he removed the varnish the
figures appeared raised upon a dark
ground; and etching upon glass was
added to the ornamental arts.
One day, nearly three hundred
years ago, a poor optioian was work.
ing in his shop in tho town of Mid
dlcburg, in the Netherlands, his
children helping him or amusing
themselves with the tools and objects
lying about, when suddenly his little
girl exclaimed : go, papa, see how
near the steep!c comes !" Anxious
to learn the cause of the child's
amazement, he turned toward her,
and saw that she was looking
through two lenses, one held
close to her eye, the other at arms
length and calling her to his
side, he noticed that the eye lens
was plano concavc, while the othor
was plano-convex. Taking tho two
glasses, he repeated his daughters
experiment, and soon discovered that
she had chanced to hold the lenses
at tho proper focus, tl1,s producing
tho wonderful effect that she OBJ
served. His quick wit saw in this
wonderful discovery, and he at once
set about making use of his now
knowledge of lenses. Ere long he
had fashioned tube of pasteboard,
in which he set the glasses at their
proper focus, and so the telescope
was invented.
Among the many traditions con-
cerning William Lee and the istock-
ing frame is one that he was OK
pellcd from the university for mar
rying, and that, being very poor, his
wife was obliged to contribute to-
ward the housekeeping by knitting.
1t was while watching the motion of
her fingers that he conceived how to
initiate those movements by a ma
chine.
Arkwright accidentally derived
the idea of spinning by rollers from
seeing a red-hot bar elongated by
being passed between two rollers.
The ordinary practice of taking
bath solved for Archimedcs the ques-
ton of how to test the purity of the
gold in IIiero's crown. He observed
that when he stepped into full
bath the quantity of water which
overflowed was equal to the bulk of
his body, and it occurred to him that
the worth of the crown might be
tested by such means. He there
upon made two masses of the same
weight rs the crown, one of gold,
the other of silver, and immersed
them separately in vessel filled to
the brim, measuring exactly the
quantity of water that overHowcd in
each case. Having found by this
meane what measure of the fluid an
swered to the quantity of each metal,
less in the case of the gold than Of the
silver--the bulk of the former being
less, weight after weight-he next
Immersed the crown itself, and
l----@@>-1e--.e-e
'EV nv 20