scientific american - 2000 12 - rulers of the jurassic seas
scientific american - 2000 12 - rulers of the jurassic seas
... dinosaurs such as Iguan-
odan grabbed the attention of paleon-
tologists in the 1830s, the novelty of
the fish-lizards faded away. Intense in-
terest in the rulers of the Jurassic seas
resurfaced only ... Records of Galactic History
Rulers of the
Jurassic Seas
The reiGn of icHthyosaurs
Copyright 2000 Scientific American, Inc.
Scientific American De...
scientific american - 1996 12 - traces of the big bang
... because the
power and economy of mass-
produced processors are often
cited as factors in the collapse
of the supercomputing market. As
much cheaper and easier-to-use work-
stations based on off -the- shelf ... one sixth the risk of 5 5- to 64-year-olds. Men are at three times the
risk of women; blacks are at two and half times the risk of whites.
The geographical pa...
scientific american - 2000 08 - global warming - the hidden health risk
... Florida and the Southwest
but also in the Ozark Plateau of
eastern Oklahoma-northern Ark-
ansas-southern Missouri, the north-
ern part of the lower Michigan
peninsula and most of the na-
tion’s ... cloud of gas. He pro-
posed that gravity pulled most of the gas
to the center, thereby creating the sun. At
the same time, some of the material, be-
cause of its s...
scientific american - 1994 12 - nasa's latest view of the earth
... loners. The
families have very diÝerent char-
acters, which reßect the person-
ality of the matriarch. In the
case of Echo, the family is low-
key and nonaggressive.
How the 50-year-long rela-
tionships ... proÞt-
able segments of the market. Among
the models offered for sale in a given
year, the more fuel-eÛcient ones tend
to be the smaller, slower, bottom -of- the...
scientific american - 1995 12 - the puzzle of consciousness
... stunning
movie of our watery planet. The
spacecraft examined the outer
expanses of the earthÕs magnet-
ic Þeld and took the Þrst mea-
surements of the moonÕs far
side since the days of the Apol-
lo program. ... returned to the earth
over the low-gain antenna. Tape-search-
50 SCIENTIFIC AMERICAN December 1995
JAILBARS, slices of images taken of the asteroid...
scientific american - 2000 06 - the birth of molecular electronics
... FFlloooorr??
Molecular
Electronics
The Birth of
Copyright 2000 Scientific American, Inc.
Scientific American June 2000 37Profile
Profile
served specimen of one of the earliest di-
nosaurs ever discovered
—a 228-million-
year-old ... survey of
the number of private companies in the business of small-arms production over the
past four decades shows how the market...
scientific american - 2000 11 - the future of digital entertainment
... trade. The decline
was reinforced by the social unrest of the
late 1960s, which divided the supporters
of civil rights.
Furthermore, the economic crisis of
the 1970s strengthened the hand of the
more ... materials pro-
vide some of the first insight
into the lives of prehistoric
women, children and the eld-
erly
—or, as Soffer describes
them, the silent majo...
scientific american - 1993 06 - tuning in the radio signals of ancient galaxies
... gam-
ma-chain gene were causing the im-
munodeficiency. With the further assis-
tance of Howard M. Rosenblatt of the
Baylor College of Medicine and Alexan-
dra H. Filipovich of the University of
Minnesota, ... Furthermore, if the hot
end of the rod is then plunged into ice,
a wave of cooling will follow the wave
of heat down the length of the metal.
In the...
scientific american - 1997 10 - special issue - the future of transportation
... says
Lorraine V. Jones-Brando of the Stanley
Laboratory for the Study of Schizophre-
nia and Bipolar Disease at Johns Hop-
kins University, the lead author of the
study. The new study does not ... six species of fish set
the stage for the entire biological com-
position of Arctic lakes, ponds and
streams. Because fish are top predators,
they control the zooplankton and...
scientific american - 1997 12 - building the biggest
... upset the balance of local ecologies.
Within the U.S. there is a wide variation in the status of fish,
with the southern half of the country having far more imper-
iled species than the northern ... rival-
ing the waters of tropical rain forests in the variety of its fresh-
water fauna. The large number of species throughout the
Southeast stems from the high...
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