scientific american - 2001 02 - are we almost tapped out safeguarding every drop of clean water
scientific american - 2001 02 - are we almost tapped out safeguarding every drop of clean water
... infrared, at the
1.3 1- and 1.55-micron wavelengths need-
ed for medium- and long-range telecom-
munications. The big technical glitch re-
lates to the spacing of atoms in the crys-
tal lattice of ... YEARS OF QUANTUM MYSTERIES
Are We Almost
Copyright 2001 Scientific American, Inc.
Profile32 Scientific American February 2001
has a sibling around which it do-si-dos
every...
scientific american - 2002 02 - tv - are you addicted
... about: Washington Redskins.
■ Favorite escape: Relaxing on his boat.
■ Core belief: American competitive policy says we don’t care about
companies
we care about consumer welfare.”
MICHAEL POWELL: ... des-
tination. (Western Europe as a whole, how-
ever, took in 21 percent.) One fourth of all
migrants to the U.S. went to California; fa-
vorite cities, in order of the number of for-...
scientific american - 1993 02 - beating resistance in superconductors
... the ma-
jor cause of death of black males be-
tween the ages of 15 and 24. Blacks are
also six times more likely to be arrest-
ed for a violent crime than are whites.
The Þve-year, $400-million ... Calif.
Copyright 1993 Scientific American, Inc.
ber of wells Arabs can drill in the terri-
tory, the amount of water Arabs are al-
lowed to pump and the times at which
they can...
scientific american - 1994 02 - do aerosols slow climatic warming
... acknowledges
that not everyone is cut out for teach-
ing partnerships. ÒThere are some sci-
entists who alienate me,Ó he concedes.
And Alberts says he is aware of the
dangers of letting well-meaning re-
searchers ... guide to appro-
priate American tank strength. Ger-
many deploys almost 4,000 top -of- the-
line tanks, which are as good or better
than the Þnest American tanks....
scientific american - 1995 02 - bubbles turn sound into light
... oÝspring if the parentsÕ
share of the beneÞts from having chil-
dren exceeds their share of the costs.
In addition, where conjugal bonds are
weak, as they are in sub-Saharan Africa,
fathers often do ... eastern Austra-
lia is increasingly be-
ing sought by real-es-
tate developers.
Koalas have come
to live cheek-by-snout
with people moving
into coastal areas pop-
ulated with the ani-...
scientific american - 1996 02 - saving malnourished minds
... his
visions of the future with a dose of
skepticism. In his instant best-seller
The Road Ahead, the mega-entrepre-
neur ruminates (along with two co-au-
thors) about where the computer revo-
lution ... properties of brains similar
to software in a computer.
In everyday life, we assume unthink-
ingly the intentional stance when deal-
ing with people. The behaviorist move-
ment in psych...
scientific american - 1997 02 - found - 1,000 galaxies
... already been
sketched for 1 9-, 3 1-, 3 9- and 75-pas-
senger craft) and new federal regula-
tions governing the certification and op-
eration of tilt-rotors in heavily populat-
ed areas. Such regulations, ... Boeing 609 will actu-
ally be an updated version of the exper-
imental, 1970s-era XV-15, which was a
test-bed for a military tilt-rotor known
as the V-22 Osprey. The V-22’s de...
scientific american - 1998 02 - wrapping up the universe
... a “competi-
tor” to Microsoft in one arena.
Instead of continuing to innovate and
beating Microsoft to the punch, howev-
er, Netscape has fallen back on indus-
trial-age techniques of litigation ... general approba-
tion, Collins is not entirely with-
out critics. John C. Fletcher, for-
mer director of the Center for
Biomedical Ethics of the Univer-
sity of Virginia and an Episco-...
scientific american - 1999 02 - a fractual walk down wall street
... a
piece of one of the deadliest murder
weapons ever: the 10-kilometer-wide (six-
mile-wide) asteroid that wiped out the di-
nosaurs 65 million years ago. Kyte found
the tiny fossil, about as big ... nuclear burning of inflowing matter would account
for the paradoxical brightness of the supersoft sources. But is
it really possible? Here we were lucky. Just when we were dis-
Supers...
scientific american - 2000 02 - galileo finds fire and brimstone on jupiter's moon io
... sepa-
rated thousands of salt-grain-size for-
ams from their muddy mass grave us-
ing a tiny paintbrush. Her search re-
vealed that 55 percent of the species of
deep-sea forams had disappeared ... photo of a rela-
tive of a Nobel laureate in chemistry ap-
parently piloting some kind of flying
vehicle.
True, sort of. Captain Jean-Luc Picard
of the Federation Starship Enterprise...
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