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This
site
presents
an
analysis
of
the
theories
and
experiments
done
so
far
on
sound-producing
(e.g.,
roaring,
booming)
sand
avalanches.
Several
reference
articles
are
cited,
and
a
link
to
the
summary
of
an
article,
"Booming
Sand",
in
Scientific
American
volume
277,
number
3,
is
provided.
An
on
site
version
of
another
article,
"Sound
Producing
Sand
Avalanches",
in
Contemporary
Physics,
volume
38,
number
...
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These
podcasts
consist
of
brief
audio
stories
from
the
world
of
science
that
expand
on
topics
from
NOVA
television
programs.
Currently,
four
different
podcasts
and
two
RSS
(Real
Simple
Syndication)
feeds
are
available.
In
addition
to
audio,
some
podcasts
include
video,
news
articles,
and
interactives.
Podcasts
can
be
played
on
an
iPod
or
other
MP3
player,
or
can
be
downloaded
and
played
on
a
computer.
...
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This
is
the
record
of
an
environmental
reporter's
expedition
to
Madagascar.
He
accompanied
a
team
of
biologists
to
survey
the
wildlife
of
a
remote
humid
forest
parcel
and
observed
the
discovery
of
new
species
of
chameleon
and
lemur.
The
author
also
details
his
meeting
with
a
scientist
who
is
studying
Madagascar's
largest
predator,
the
elusive
fossa,
and
his
trip
with
a
biologist
to
the
spiny
bush,
...
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This
site
provides
information
on
the
International
Space
Station,
space
shuttle
missions,
and
future
human
missions
to
Mars;
current
NASA
news,
NASA
TV
schedules,
and
information
on
spacecraft
sighting
opportunities;
and
descriptions
of
past
NASA
missions.
There
is
a
gallery
of
images,
videos,
and
audio
from
NASA
missions;
outreach
information
on
high
school,
college,
teacher
and
faculty
programs
...
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The
Voyage
of
the
Odyssey
is
a
five-year
program
designed
to
gather
the
first
ever
baseline
data
on
levels
of
synthetic
contaminants
throughout
the
oceans
of
the
world.
It
uses
whales,
albatrosses
and
pelagic
fish
as
indicator
species
for
measuring
the
health
of
the
seas.
There
is
a
map
to
locate
the
current
position
of
the
Odyssey
and
ship
logs,
video,
and
audio
reports
to
learn
about
the
experiences
...
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NASA
Quest's
primary
goal
is
to
connect
the
public
to
the
people
and
science
of
NASA
through
live-encounter
Events:
stand
alone
or
serial
combinations
of
webcasts,
chats,
forums,
and
classroom
collaborations.
To
accompany
these
live
events,
NASA
Quest
provides
searchable
profiles
of
the
experts,
journals
of
their
day-to-day
activities,
and
background
information
on
the
projects
in
which
they
are
involved.
...
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The Exploratorium digital library includes digital media, digitized museum materials related to interactive exhibits and scientific phenomena.
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The
Polar
Earth
Observing
Network
POLENET
is
a
science
program
of
the
POLENET
consortium
that
investigates
polar
geodynamics,
the
Earth's
magnetic
field,
crust,
mantle
and
core
structure
and
dynamics,
and
systems-scale
interactions
of
the
solid
Earth,
the
cryosphere,
the
oceans
and
the
atmosphere.
Activities
will
be
focused
on
the
deployment
of
autonomous
observatories
at
remote
sites
on
the
continents
...
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