scientific american - 2002 06 - spintronics - a new twist in computing
scientific american - 2002 06 - spintronics - a new twist in computing
... Time and again re-
searchers have obtained tantalizing pre-
liminary results only to run up against a
brick wall later. As recently as two years
ago, AIDS researchers were saying pri-
vately that ... electromagnetic radiation into gravi-
tational radiation, and vice versa, with near
perfect efficiency. Such a feat sounds as amaz-
ing as transmuting lead into gold
—and about
as plausible. “...
scientific american - 1994 06 - was there a race to the moon
... space agency. He is
also a partner at L.D. Associates, a stra-
tegic management consulting Þrm.
SCIENTIFIC AMERICAN June 1994 37
Copyright 1994 Scientific American, Inc.
McNamara was also intrigued ... National Institute of
Mental Health distinctions: a Merit Award
and a Research Scientist Development
Award. He has also received an Estab-
lished Investigator Award from the Amer...
scientific american - 2002 03 - new antidotes to anthrax
... L. A. WHITE 4 Wing Imaging
news
SCAN
B
ack in the good old days, going on a
space mission meant training, training
and more training
in simulators. But
these days
NASA makes sure astronauts also
spend ... year for the
paint needed to protect against corrosion.
Though effective against many species, de-
oxygenating ballast water isn’t a panacea
—it
won’t work against anaerobic bacter...
scientific american - 2002 05 - a fire within - inflammation's link to heart attacks
... FLOODING? Mars’s Athabasca Valles region
COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC.
www.sciam.com SCIENTIFIC AMERICAN 35
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SCAN
SCOTT CAMAZINE AND SHARON BILOTTA-BEST Photo Researchers, Inc. ... FPG International
news
SCAN
A
cetaminophen from painkillers, triclo-
san from antimicrobial soaps and caf-
feine from the morning java jolt, among
other chemicals, are showing up daily on...
scientific american - 2002 09 - special issue - a matter of time
... conflict
training area for the British army
and NATO forces.
MAINTAINING A
CHEMICAL BASE
M
arines dressed in hazmat suits stand
at the edge of a prairie, pockmarked
with gopher holes, in southern Alber-
ta. ... median-priced res-
idence, valued at $293,000. The typical Buf-
falo family would have no problem obtain-
ing a mortgage with a minimum down pay-
ment, whereas a similar f...
scientific american - 1993 06 - tuning in the radio signals of ancient galaxies
... ex-
poses the ground to increased solar ra-
diation. Draining or Þlling of marshlands
eliminates the cooling eÝect of evapora-
tion and causes surface warming. Urban-
ization also leads to warming ... elliptical galaxies was produced
by stars at least a few billion years
old. The natural interpretation was that
radio galaxies contain a sizable pop-
ulation of mature stars that all have...
scientific american - 1995 06 - the world's strongest magnets
... as
Brontosaurus ) has a new head, four ad-
ditional neck vertebrae and a dynamic
tail -in- the-air pose, reflecting the latest
understanding about dinosaur anatomy and locomotion.
The Tyrannosaurus ... many diÝer-
ent habitats in an area stretching across
Asia. In addition, the strategy would
tend to reduce inbreeding. ÒAfter Þve
or six years, a high-ranking male proba-
bly has da...
scientific american - 1995 10 - dangers from new viral plagues
... theoretical work
in South Africa with paral-
lel careers as a Quaker phi-
lanthropist, antiapartheid
activist and policy guru.
A heavy streak of altru-
ism has probably run in El-
lis since childhood. ... Made for WalkingÑand?
A new set of fossils may put hominids in the trees again
DAN BURTON
MICHAEL CRAWFORD
Copyright 1995 Scientific American, Inc.
time was walking with a...
scientific american - 1996 06 - the space station
... Port-au-Prince, Haiti,
rooftop compost beds sprout fresh veg-
etables. In Peru, guinea pigs are raised
in cages that hang on apartment walls.
Farmer cooperatives in Calcutta pro-
duce tilapia, carp, ... million in Latin America and the Caribbean, 25,000 in East Asia,
1.5 million in South Asia, and 7.5 million in sub-Saharan Africa. The incidence of
AIDS is now leveling off in...
scientific american - 1997 06 - the microchip that rewires itself
... discovered that Iraq had sys-
tematically deceived IAEA inspectors
and managed to assemble a far-reaching
clandestine program to build a bomb,
the IAEA began overhauling its inspec-
tion and monitoring ... the
deals, but intelligence reports spanning
the past several years indicate that
Iran’s global smuggling network remains
intact.
Having failed in its major procure-
ment attempts, Ir...