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compass
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A device to determine geographical direction, built with a freely spining
magnetic needle, aligned with the magnetic field of the earth.
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computer chip
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is also known as a digital integrated circuit.
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CPU- Central Processing Unit
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The component of a computer in which data processing takes place.
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deaf
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Partially or completely incapable of hearing.
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deflecting needle
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Electromagnetic device with a freely floating needle (compass), to show
the influence of magnetic fields and electric currents. It deflects or
turns from one direction to another, with an electric current.
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electricity
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The physical phenomena that arises from the existance and interaction of
electric charges.
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electromagnet
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A magnet of a soft-iron core wound with a current-carrying coil of insulated
wire. The current produces the magnetization of the core.
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electrometer
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a device for catching and measuring electrical charge.
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environmentally-friendly
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A choice which benefits the environment.
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extra terrestrial
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Originated or located outside of the Earth or its atmosphere.
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FAX -Facsimile
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System used to transmit textual or graphical images over standard telephone
lines
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Fiber optics
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The science of using light energy as a medium of transport of information.
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fiber-optic
cables
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Cables used in a system that allows light to travel through it at very
fast speeds, as means of informational data to be transfered at the receiving
end into other types of signals. (words, etc.)
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final product
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The end result of a plan or design, which represents the thinking and decisions
made by its originator(s)
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FIRST CONTACT
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Term used to describe the moment when an alien civilization would establish
communication or meet with humans.
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galvanometer
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A device to detect electrical currents by means of mechanical effects produced
by the current to be measured. Picks up evidence of an electrical current
and measures it.
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history
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A narrative of events or a chronological record of the life and development
of people or institutions.
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integrated circuit
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A tiny silicon wafer where a complex of electronic components and their
interconnections are imprinted or etched.
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Internet
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A worldwide network of networks.
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inventor
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A person who produces something previously unknown, by the use of ingenuity,
creativity and imagination.
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journal
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A record keeping tool. Can be used as reference, as a log of daily activities
or events, or for reflexion
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lightning
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A natural electric discharge in the atmosphere, usually evidenced by a
flash of light produced by such discharge. A lightninig rod attracts the
discharge and sends it to the ground. Ben
Franklin invented the lightning rod.
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magnet
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A body that attracts iron and other specific materials, because of a surrounding
field of force produced by the motion of its atomic electrons and the alignment
of its atoms.
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mass of a particle
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The amount of material in a particle.
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memory
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in a computer used for the same information that's handled in the computer
itself.
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Microwave
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Electromagnetic waves that travel in a straight line and are used >to and
from satellites and for short distances (i.e., up to 30 miles)
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Modem
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Acronym for MOulate DEModulate. Hardware that allows computers to interact
with each other via telephone lines by converting digital signal to analog
for transmission along analog lines
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morse code telegraph
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Device to transmit electric signals in patterns, identified as letters
and numbers by the receipient. Inventor: Morse.
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Network
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A series of points connected by physical or virtual connects.
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particles
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Very small pieces or parts of any material or substance. Building blocks
of matter.
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Photophone
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Communication device that transfers light signals into sound signals.
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satellites
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Communication device that orbits around the earth relaying video and audio
signals.
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sound
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A vibration which can be detected by the organs of hearing.
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sound transmission
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The process of having sound be able to go from one point to another.
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Telecommunication
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The science of information transport using wire, radio, optical, or electromagnetic
channels to transmit receive signals for voice or data communications using
electrical means.
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telephone
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An instrument that directly modulates carrier waves with voice or other
acoustic source to be transmitted to a remote location and reconverted
into received waves of audible signals. Invented by Alexander Graham
Bell.
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thunder
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The sound emitted by rapidly expanding gases along the path of the electrical
discharge of lightining.
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transatlantic telephone
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The connection of telephone access of communication across the Atlantic
Ocean
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strategies and modifications
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The steps and decisions made along the way of a plan or process. Specific
ideas and descriptions showing the process of thinking towards an outcome.
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tuning forks
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A small U-shaped metal device that when struck produces a sound of a fixed
pitched. It is usualy used as a reference to tune musical instruments.
Its size determines the note.
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URL
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Uniform Resource Locator, e.g., http://www.gsh.org, which represents an
address on the Internet.
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video technology The devices and structures designed to manipulate and
access information with pictures and sounds.
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waves
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In physics, it represents a disturbance or oscillation which is propagated
from point to point in a medium or space. It can be mathematically measured
for its specific characteristics: frequency, velocity, etc.
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WWW World Wide Web- A network of graphical hypertext servers linked by
the Internet.
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