Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1888-06-01
POPULAR SCIENCE.
4 Gathering OF Short Paragraphs to In
teress the Many. arsf

tersst the Many. Ssysf.
Wet rope is only one-third as nsiA
as when dry, and creased rope ssees
weaker. sAsssS
There are in the United Ststes III
eighty miles Of railroad on which thefo-
i've power Is electricity.
His predicted that the boring through
the Straits of Dover will reveal the ex-
istence OF extensive coal beds.
Basic Stag, the refuse of steel works,
when freed from iron and reduced to
powder, proves 10 be valusble fertil-
izsr.
Medical authority can be found for the
theory thst 1t is the early riser who
catches missms, II there be any in the air.
Florida promises to become large
producer of opium. Sixteen plants will
produce en- ounce, sud an ecre of peoples
will yield $1,000 worth OF opium.
1t has been sscertaiued by careful ex
perinents conducted by NJ Roger that
poisons lose one fifth OF their toxic power
when taken into the system by fasting.
eANuremburg inventor has produced 8
shoe sole composed of wire net overlsid
with substance resembling india rubber.
These soles, which cost but half the price
Of leather, have been tested in the Ger
msn army and found to be twice SIS
durable.
new double-pointed nail is the in
yention of an ingenious woman. The
points turn in opposite directions. They
are especially useful for invisible mailing
in woodwork. 1t is simply two nails
Joined firmly, the sides Of the heads be-
ing plsced together.
DR.. Worms Of the Paris Academy Of
Medicine has sscerteined that bees, ants
and wssps show q marked dislike to the
new sscchariDe. To the human palate
there is no difference In the tsste between
It and sugar. II has been shown how
ever, that its use disturbs digestion.
Aphysician OF Philsdelphis analysed q
black ispsnned hat-bsnd worn by ps-
tent suffering from headache snd found
J; contained three grains Of one of the
lead salts. From this case he concludes
thst many headaches are often due to the
absorption Of the lesd in the hat-bsnd.
Supervising Inspector Lubbock Of San
Francisco having reported to the Treas
ury Department .that petroleum is not
safe fdel fer large boilers, hiss been In
itructed by Secretary Fsirchild to with.
draw all permits heretofore given for its
use except in the cases Of small steam
laQnches.
In drilling glass, stick stin piece Of
clay or putty on the part where you
wish to make the hole. Make hole In
tie putty the size you want the hole,
raarhYnn fo fhn rlS ~ ntn
this hole pour little molten lead, when,
Unless it is very thick glsss, the piece
Will Immediately drop out rradesman.
An approximate idea of the amount Of
Manganese contained In steel can be
sscerssined by means Of the magnet. A
magnet capable Of lisiing thirty pounds
Of ortinary steel or iron will only lift 8
lew milligramnes II the metal contains
~ per cent. OF manganese. So small q
quantity IS per cent. Of manganese will
nesrly neutralize the magnetic attraction.
Engineering remarks thai alloys formed
" melting two or more metals together
presen. some very curious characteristics,
anoag which is the fact thst the melting
POINT OF the alloy is in general much lower
lasn that Of either OF itH constituents
Woods alloy, for instance, which consists
lead, tin, cadmium and b.smuth, melts
asbout 1862 f., while the lowest fusing
Point Of any of the metals separately Is
nat Of tin-t46e.
The remarkable substance known IS
poteline is formed by Q mixture OF
e!Ycerine, tannin and gelatine, to which
may be added the sulphste OF baryta or
ine-white; the resulting mass may be
eolored by the addition OF vegetable
eolors. While poteline Is hot 1t can be
moulded, and when Geld 1t is susceptible
OF every kind Of manipulation, such as
Iafnlng, fling, boring, ETC., and makes q
very fine polish.
A process has been perfected and
Patented for drawing upon wood BY
means Of fine metallic point kept red
mol, SO that the lines are acruslly burned
INTO the surfsce. A powerful oxyhVdrogS
OF rsther iams keeps the point always 1t
! high temperature, and pet the sppersfu9i
Is SO compact thst it may be used 9t4
.ae ease and freedom Of o pencil. III,
furthermore, so adjusted as to prod g
~ WI all shades Of brown, from -
Hentest shade to that verging on bla9k.
Both in ChIns and Japan sospsN AaS!
iong been largely used for pr ecting]
tlructures huJlt nf anft cfnue aud&otha&1