Internet Resource Guide (IRG)
The NSF Network Service Center (NNSC) compiles and makes available an
Internet Resource Guide (IRG). The goal of the guide is to increase the
visibility of various Internet resources that may help users do their
work better. While not yet an exhaustive list, the guide is a useful
compendium of many resources and can […]

Fig. 13 is offered to remind the student of the action of an induction
coil or transformer in whose primary circuit a direct current is
increased and decreased. An increase of current in the local winding
produces an impulse of _opposite_ direction in the turns of the
secondary winding; a decrease of current in the local winding produces
an impulse […]

% finger bart@cs.widener.edu
[cs.widener.edu]
Login name: bart In real life: Bart Simpson
Directory: /home/springfield/bart Shell: /bin/underachiever
Affiliation: Brother of Lisa […]

_A._–By latent heat is meant the heat existing in bodies which is not
discoverable by the touch or by the thermometer, but which manifests its
existence by producing a change of state. Heat is absorbed in the
liquefaction of ice, and in the vaporization of water, yet the temperature
does not rise during either process, and the heat absorbed […]

(excepting the poorer ones) never show off
One of the hardest things about being an inventor is that the machines
(excepting the poorer ones) never show off. The first time that the
phonograph (whose talking had been rumored of many months) was allowed
to talk in public, it talked to an audience in Metuchen, New Jersey,
and, much to Mr. […]

It is the use of gasoline for fuel that makes all this possible.
Gasoline, being a very volatile liquid, turns into a highly inflammable
gas when heated and mixed with the oxygen in the air. A tank holding
from twenty to forty gallons of gasoline is connected, through an
automatic regulator which controls the flow of oil, to a […]

only to encounter another
It might seem at first that the bridging system avoided one difficulty
only to encounter another. It clearly avoids the difficulty of the
series system in that the voice currents, in order to reach distant
stations, do not have to pass through all of the bells of the idle
stations in series. There is, however, presented […]

meeting, and his words may stand, being more than mere
journalism; for the great flying week which opened on August
22nd, 1909, ranks as one of the great landmarks in the history
of heavier-than-air flight
So wrote a newspaper correspondent who was present at the famous
meeting, and his words may stand, being more than mere
journalism; for the great flying […]

_Vibrating Bell_. The vibrating bell, so widely used as a door bell,
is a device consequent to the telegraph. Its action is to give a
series of blows on its gong when its key or push button closes the
battery circuit. At the risk of describing a trite though not trivial
thing, it may be said that when the […]

the machine to descend as rapidly as possible, in
order to get a headway, for the time being
The proper course in such a case is to urge
the machine to descend as rapidly as possible, in
order to get a headway, for the time being. As
there is now no propelling force the glide is depended
upon to act as […]