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Reference source containing links to information on rockets, spacecraft, programs, astronauts, and more.
http://www.astronautix.com/
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space
science
reference
encyclopedia
history
astronomy
technology
rocket
nasa
spaceflight
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Pykrete is a composite material made of approximately 14 percent sawdust or some other ... Retrieved from "http://en.wikipedia.org/wiki/Pykrete" Categories: Composite materials ...
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pykrete
ice
science
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materials
cool
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wikipedia
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science
technology
education
howto
reference
tutorial
articles
howstuffworks
explain
physics
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Educational and entertaining site containing thought-provoking essays on astronomy, physics, chemistry, mathematics, languages, linguistics, writing, words, total ...
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reference
education
language
science
history
politics
languages
information
physics
travel
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Attempt at a comprehensive and accurate list of the heads of state and heads of government for all countries and territories, going back to about 1700.
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reference
politics
history
geography
government
maps
world
encyclopedia
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flags
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iridium
space
astronomy
satellites
satellite
flares
photos
fun
nasa
photography
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technology
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sts
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associations
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history
washington
seattle
reference
washington_state
encyclopedia
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education
culture
state
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jupiter
astronomy
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solar_system
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outer_solar_system
astrojupiter
universe
wikipedia
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Encyclopedia - PC Magazine technical dictionary online dictionary definition technical definitions technical encyclopedia technology glossary
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encyclopedia
reference
dictionary
it
technology
computer
resources
internet
online
glossary
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