Savannah morning news. [volume] (Savannah) 1868-1887, 1886-03-08
POPULAR SCIENCE.

! A scientific paper asserts that the av-
/ craze length of life is constantly increas-
| ing, and the time may come when persons
| a hundred years old will excite no more
curiosity than one OF so years at the pres
ent time.
English journals record the late VOYAGE
| OF large steamer, owned in London,
which has been fitted TO burn petro-
! leum. Good time was made, and gem
eral satisfaction is expressed with the ex-
! pertinent.
In England pulley 60 feet in diameter
| and weighing SO tons has Just been made
| 1t has grooves for 32 ropes, which together
will transmit 1,2SO-horse power, and the
rim will have a velocity OF more than a
mile a minute.
The Canadian government has adopted
| for it's telegraph lines on the Northwestern
prairies a pole composed of malleable gal
vaniz ed iron. 1t is II inch in diane
ter at the top and ~ inches In diameter
at the bottom, and weighs less than 30
pounds.
Two OF the iron works Of this State keep
six steamers busy bringing ore from Cuba
at the rate ST 1000 tons week. The to-
tai imports Of iron ore in 1884 were only
10000 tons. Several establishments IN
Baltimore send all the way TO Spain for
the iron which they use.
The disposal Of snow by steam heat is
successfully praeticed in London, and at
much less outlay OF money than is re.
quired to cart IL from the streets, Pits are
provided with steam coils at the bottom
into these pits the snow is shoyelled.
and being rapidly melted runs into the
sewers.
NJ. Cortes, the distinguished microsco-
pist, has been experimenting upon the
Hs.aa Inn %
oyster. He recommends lemon Juice
the most valuable Of these relishes, as il
has the property Of destroying the animal
cue which lnfest the stomach OF that
mollusk.
The electric-lighting dynamo at Lin
coins Inn Dining Hall and Library, Lon
don, Is driven at a rate OF not less than
10000 revolutions "a minute by a Parsons
high-speed engine. Its claimed that this
Is the hrst motor that has ever been made
70 work al the actual velocity Of the steam
as IL escapes from the boiler.
There is a small tree growing In a gulch
near Tusoarora, New. the foliage Of which
at certain seasons Is said to be so lumin-
GUS that II can be distinguished a mile
away In the darkest night. In It's imme-
date season IL emits sufficient light to en-
able a person 70 read the finest print.
Its luminosity Is said 70 be due 70 para
sites.
Prof. Josef Korosi, the statistician,
finds that the rich class averages 81 years
Of life, the middle class averages 4G years
one and one-tentb months Of life and the
| poor class averages Al years months OF
! life. From this 1t Is obvious that the pos
session Of wealth and the resultant ex-
emptiOn from privation lengtheDs the ay-
erage life nearly ten years.
A plan for rendering paper as tough as
wood or leather has been recently intro
duced on the Continent; it consists In
mixing chloride Of zinc with the pulp Ia
the course Of manufacture. It has been
found that the greater the degree OF con-
centratiOn Of the zinc solution the greater
will be the toughnese Of the paper. IL
can be used for making boxes and forr0of-
ing.
Ail-white handkerchief ere most Buila-
Bic with GIIl dress