Technology Info

‘_Puratylene,_’ a mixture of bleaching powder and hydroxide of lime,

January 6th, 2009

made very porous, and containing from eighteen to twenty per cent of active
chlorine
‘_Puratylene,_’ a mixture of bleaching powder and hydroxide of lime,
made very porous, and containing from eighteen to twenty per cent of active
chlorine.

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So, one after another, this notable company

January 6th, 2009

of men listened to the voice of the first telephone,
and the more they knew of science, the less they
were inclined to believe their ears
So, one after another, this notable company
of men listened to the voice of the first telephone,
and the more they knew of science, the less they
were inclined to believe their ears. The wiser
they were, the more they wondered. To Henry
and Thomson, the masters of electrical magic, this
instrument was as surprising as it was to the man
in the street. And both were noble enough to
admit frankly their astonishment in the reports
which they made as judges, when they gave Bell
a Certificate of Award. ‘Mr. Bell has achieved
a result of transcendent scientific interest,’
wrote Sir William Thomson. ‘I heard it speak
distinctly several sentences. . . . I was
astonished and delighted. . . . It is the
greatest marvel hitherto achieved by the electric
telegraph.’

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Dana Noonan”s A Guide to Internet/Bitnet comes in two parts

January 6th, 2009

Dana Noonan”s A Guide to Internet/Bitnet comes in two parts. Part two is
about Internet Libraries. It is an easy to use guide to many national and
international OPACS and their login and use instructions. (available via
anonymous ftp from vm1.nodak.edu then CD NNEWS (although nnews may not
show up on the directory menu, it works.) A printed version is available
for $10 from Metronet. For more information:
Metronet
226 Metro Square Building
Seventh and Robert Streets
St. Paul, Minnesota 55101
612/224-4801 FAX 612/224-4827

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When you take your receiver off the hook a tiny electric bulb glows

January 6th, 2009

opposite the brass-lined hole that is marked with your number on the
switchboard of your central, and the telephone girl knows that you are
ready to send in a call–the flash of the little light is a signal to
her that you want to be connected with some other subscriber
When you take your receiver off the hook a tiny electric bulb glows
opposite the brass-lined hole that is marked with your number on the
switchboard of your central, and the telephone girl knows that you are
ready to send in a call–the flash of the little light is a signal to
her that you want to be connected with some other subscriber. Whereupon,
she inserts in your connection a brass plug to which a flexible wire is
attached, and then opens a little lever which connects her with your
circuit. Then she speaks into a kind of inverted horn which projects
from a transmitter that hangs round her neck and asks: ‘Number, please?’
You answer with the number, which she hears through the receiver
strapped to her head and ear. After repeating the number the ‘hello’
girl proceeds to make the connection. If the number required is in the
same section of the city she simply reaches for the hole or connection
which corresponds with it, with another brass plug, the twin of the one
that is already inserted in your connection, and touches the brass
lining with the plug. All the connections to each central station are so
arranged and duplicated that they are within the reach of each operator.
If the line is already ‘busy’ a slight buzz is heard, not only by
‘central,’ but by the subscriber also if he listens; ‘central’ notifies
and then disconnects you. If the line is clear the twin plug is thrust
into the opening, and at the same time ‘central’ presses a button, which
either rings a bell or causes a drop to fall in the private exchange
station of the party you wish to talk to. The moment the new connection
is made and the party you wish to talk to takes off the receiver from
his hook, a second light glows beside yours, and continues to glow as
long as the receiver remains off. The two little lamps are a signal to
‘central’ that the connection is properly made and she can then attend
to some other call. When your conversation is finished and your
receivers are hung up the little lights go out. That signals ‘central’
again, and she withdraws the plug from both holes and pushes another
button, which connects with a meter made like a bicycle cyclometer. This
little instrument records your call (a meter is provided for each
subscriber) and at the same time lights the two tiny lamps again–a
signal to the inspector, if one happens to be watching, that the call is
properly recorded. All this takes long to read, but it is done in the
twinkling of an eye. ‘Central”s’ hands are both free, and by long
practice and close attention she is able to make and break connections
with marvellous rapidity, it being quite an ordinary thing for an
operator in a busy section to make ten connections a minute, while in
an emergency this rate is greatly increased.

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A

January 6th, 2009

A. This will cause a loss of main reservoir air, and both ends of the
pipe must be plugged. As no air now comes to the feed valve to charge
the brake pipe in running or holding position of the brake valve, the
handle must be carried in release position.

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Roberta Williams

January 5th, 2009

Ken Williams” timid wife who rediscovered her own creativity
by writing ‘Mystery House,’ the first of her many bestselling
computer games
Roberta Williams
Ken Williams” timid wife who rediscovered her own creativity
by writing ‘Mystery House,’ the first of her many bestselling
computer games.

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Critchley”s list of aero engines being constructed in 1910 shows

January 5th, 2009

twelve of the radial type, with powers of between 14 and 100
horse-power, and with from three to ten cylinder–this last is
probably the greatest number of cylinders that can be
successfully arranged in circular form
Critchley”s list of aero engines being constructed in 1910 shows
twelve of the radial type, with powers of between 14 and 100
horse-power, and with from three to ten cylinder–this last is
probably the greatest number of cylinders that can be
successfully arranged in circular form. Of the twelve types of
1910, only two were water-cooled, and it is to be noted that
these two ran at the slowest speeds and had the lowest weight per
horse-power of any.

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RTFM (Read The Fantastic Manual)

January 5th, 2009

RTFM (Read The Fantastic Manual).
This anacronym is often used when someone asks a simple or common
question. The word `Fantastic” is usually replaced with one much more
vulgar.

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Sanders”s relatives, who were many and rich,

January 5th, 2009

came to his rescue
Sanders”s relatives, who were many and rich,
came to his rescue. Most of them were well-
known business men–the Bradleys, the Saltonstalls,
Fay, Silsbee, and Carlton. These men,
together with Colonel William H. Forbes, who
came in as a friend of the Bradleys, were the first
capitalists who, for purely business reasons,
invested money in the Bell patents. Two months
after the Western Union had given its weighty
endorsement to the telephone, these men organized
a company to do business in New England
only, and put fifty thousand dollars in its
treasury.

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ANEROID BAROMETER

January 5th, 2009

ANEROID BAROMETER.–The term Aneroid barometer
is frequently used in connection with air-
ship experiments. The word aneroid means not
wet, or not a fluid, like mercury, so that, while
aneroid barometers are being made which do use
mercury, they are generally made without.

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