scientific american - 2002 01 - the first human clone
scientific american - 2002 01 - the first human clone
... selfishness.
contents
january 2002
SCIENTIFIC AMERICAN Volume 286 Number 1
features
44 Cloned six-cell
human embryo
www.sciam.com SCIENTIFIC AMERICAN 3
Copyright 2 001 Scientific American, Inc.Copyright 2 001 Scientific American, ... of the objections. For the mo-
ment, then, the theory is ingenious mathe-
matics
—but of the type that has a long histo-
ry of ultimat...
scientific american - 1993 01 - the turbulent birth of the milky way
... 4,400
12-BILLION-YEAR-
OLD AGE TRACK
15-BILLION-YEAR-
OLD AGE TRACK
NGC 288
NGC 362
Copyright 1992 Scientific American, Inc.
means that within the halo the only re-
maining main-sequence stars are the
extremely ...
declines as the reefs get farther away
from two centersÑone in the Indo-Pa-
ciÞc and the other in the Caribbean.
The outlines of a map marking plum-
meting dive...
scientific american - 1996 01 - the diet - aging connection
... transform their experiment into
the quantum eraser, the researchers
tagged one of the photons of the pair
(speciÞcally, the one created by the la-
serÕs direct passage through the crys-
tal). That ... developed coun-
tries, many of which are strug-
gling to electrify. The panel, as-
sembled by the American Nuclear
Society, also chided the U.S. gov-
ernment for halting it...
scientific american - 2003 01 - the nanodrive
... shorter-necked, large-headed plesiosaurs, a group called the pliosauromorphs,
were built for high-speed pursuits on the open ocean. The longer-necked, small-headed ple-
siosauromorphs, on the other hand, ... SCIENCE
COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC.
www.sciam.com SCIENTIFIC AMERICAN 37
When the president of Bulgaria, Georgi Purvanov, arrives,
the meeting is a getti...
scientific american - 1998 01 - flying over the solar system
... of a tiny needle. They also tested
the glucose levels in these volunteers by
the finger-stick method. They found that
both the skin-fluid sample and the fin-
ger-stick measured the correct glucose
levels ... outside the cell and the
other inside. The component outside the cell is the extracellu-
lar matrix; the compressive “girders” inside the cell can be ei-
ther micr...
scientific american - 2002 10 - vehicle of change - how fuel - cell cars could revolutionize the world
... category.
F
oot-Prints, the Japanese striker, and
Tao-Pie-Pie, the New Zealand goal-
keeper, eyed each other as the ball was
placed for the penalty kick. At the whistle,
Foot-Prints sprang toward the ball, ... by
agonizingly slow step. Tao-Pie-Pie wobbled
out to narrow the angle. Foot-Prints -
nally unleashed a nudge that shot the
ball oh-so-slowly past Tao-Pie-Pie and
just...
scientific american - 1994 01 - searching for strange quark matter
... of the nuclei then spin in opposi-
tion to the external Þeld in high-energy
orientations. The process is adiabatic,
meaning the entropy remains un-
changed. The resulting spin distribution
is the ... 2,3,7,8-tetrachlo-
rodibenzo-para-dioxin, the most potent
of the 75 types of dioxinÑbinds to an
intracellular receptor. The dioxin-laden
receptor then joins with a transporter
t...
scientific american - 1994 04 - the dilemmas of prostate cancer
... powers
can help them rise to the top.
Since then, the Morrises and Alexan-
der have had a falling-out, with each
side accusing the other of hogging cred-
it for the concept of nonlethality. ÒAlex-
ander ... of the AC Þeld. When the marble
is hopping down the egg tray with the
help of the AC Þeld, augmenting the av-
erage tilt of the egg tray by increasing
the DC voltag...
scientific american - 1995 01 - warning - digital documents in danger
... stream.
$500.00
$100.00
$50.00
$100.00
$500.00
$400.00
$450.00
$350.00
DEPOSIT
CHECK#314
DEPOSIT
CHECK#315
4/5/94
4/26/94
4/27/94
11/3/94
011 111000000 0010 1010 1000000 0010 00 0011 1 1011 10BITSTREAM:
UNINTENDED 5-BIT KEY
(VALUE OF 011 11=15)
INTENDED
4-BIT KEY
(VALUE
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UNINTENDED
15-BIT
DATA BYTE
INTENDED
7-BIT DATA
BYTES
LAURIE ... ca-
sual appears to rule in MunkÕs oÛce,
wh...
scientific american - 1995 06 - the world's strongest magnets
... that
they were the few Cretaceous survivors.
The foundation of this theory began
to shake in 1981, when fossils of Òop-
posite birdsÓ were unearthed in China
and, then, all over the Northern Hemi-
sphere. ... and lead to the hy-
poactivity seen there during clinical de-
pression. If he is right, the theory would
explain the gender gap, at least in part.
Others at the NIMH have m...
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