Orange County observer. [volume] (Hillsborough, N.C.) 1880-1918, 1888-08-11
SCIENTIFIC AND INDUSTRIAL.

I%conite is the last smokeless explosive.
and its inventor describes it as meeting
! nil the Tequirements.
Scily's sulphur is estimated At about
! -, o0a, GOO, 600 tons, from which the
world draws 400, 600 tons yearly.
/ \ SIX top cab, carrying an Gle trio bat
terry strong enough u run 1t forty miles.
recently made 4 satisfactory trip through
London.
| Two substitutes for the high priced
] Gun arabic i from tiaN-stet and the
: other from stirth-are expected t. serve
! all purposes for which the genuine gum
is used.
Fne last French rifle. as describe /. has
a ball o .mall that 4 soldier can carry
go rouno boots with new >mok4les<
powder It's bullet p;erccs a brick
wall eight inches thick at 500 Yards.
The |llr-est non casting ever attempted
in america WAS recently mate IT fcthie-
hem. Penn. 1t wa the base for the >tre.
compressor 10 be Used III tn Gun steei
! works. and III tons of molten metal
vcteu~cd. l. viii lie some ", eks before
the huge casting viii lie cool enough to
examine.
CiookrS raslionetcr. a remarkable it
tie instr mcnt in which tiny vanes are
rotafci iy the action Of light. is being
used iy French photographer, for timing
exposures, an equal number Of lcvolu-
ton, OF the yanc~ corresponding to the
proper time. whatever be the degree Of
brightness of the light.
Amon- the policy holders Of a Ger
man lie Insurance Company, the deach
rate of medical men II lSsi was ll.1t
per cent. above the total average. This
was due To diseases Of the respiratory
organs, consumption. and infections dis
ra~c-. There Was only one case Of post
mortem poisoning out of 1O12 deaths.
The "utput IF the birmingham Eng
iani pin mill, i, 20. 90, 900 aday. Other
factories il that country have a capacity
of H.. 1000. 600 pms per day. France turns
out about 20, COO. UoO a day and Holland
and Company 10000. 600 each. The pm
Z machine, cut the wire to pm size, head,
point, polish, soIt aud stick them III the
papers
In a work on meteorolocy Camille
Flammarion declares the atmosphere to
be a huge machine, on which every liv-
INC thing j, dependent. There are in
this machine neither wheel work. pistons
nor o Z nevertheless, 1t does the work
Of several millions of horses, and this
work ha, for its end and effect the pres
ervation of life.
According to the E.45}nI Nrlapic, a
very coed way To anheal a small piece Of
tool steel IS to heat II up IN a forge as
slowly as possible, and then take two
fire boards and lay the hot steel between
them and screw them up in a wise. AS
the steel Is hot it sinks into the pieces OF
wood, and IS firmly imhcddcd in an
almost air tight charcoal bed, and whe1
taken out cold will be found to be nice
and soft. To repeat this viii make it as
soft as could be wished.
a process has been perfected and
patented for drawing upon wood by
means Of Il fine METALS point kcit red
hot, 80 that the lines are actually burned
into the surface. 4 powerful oxyhy
urogcn, OF rather flame, keeps the point
l~always at q high temperature, and YET
the apparatus IS so OmpaCt that 1t may
be used with the ease and freedom OF
pencil. 1t is furthermore. so al lustcC
as to produce at. VII all shades OF
brown. from the iI-htest shade to thai
verulnU on black.