2010.09.Sep.Vol.303.N 3.pdf

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Scientific American - September 2010
Special
iSSue
the
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www.scientificAmericAn.com
end.
Or is it?
The eternal fascinations — and
surprising upsides — of endings
InsIde:
Cheating death
The Paradox of Time
What Comes next
Experts Predict the Future
© 2010 Scientific American
september 2010
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contents features scientific american september 2010 ■ Volume 303 number 3
S P E C I A L I S S u E
end
INTRODUCTION
38 EternalFascinationswiththeEnd
By Michael Moyer
Why we want to believe that this is humanity’s inal hour.
TECHNOLOGY
68 GoodRiddance
Some human inventions deserve to go.
MEDICINE
42 WhyCan’tWeLiveForever?
By Thomas Kirkwood
By unraveling the mysteries of aging, scientists may be
able to extend our lives.
ENVIRONMENT
74 HowMuchIsLeft?
By Michael Moyer
The lowdown on the planet’s dwindling resources.
RISK ANALYSIS
82 LayingOdds
ontheApocalypse
By John Matson
How experts see the likelihood
of eight doomsday scenarios.
BIOETHICS
By Robin Marantz Henig
Some doctors think we shouldn’t wait for donors to die
before removing their organs.
FORENSICS
56 DusttoDust
By Arpad A. Vass
The brief, eventful afterlife of a human corpse.
COSMOLOGY
84 CouldTimeEnd?
By George Musser
Recent work in physics suggests
a resolution to the paradox of time.
ANTHROPOLOGY
60 LastofTheirKind
By Wade Davis
As cultures die, knowledge dies with them.
R E S TA RT
92 WhatComesNext
Scientists give their visions of what the future holds.
2 SCIENTIFIC AMERICAN
© 2010 Scientific American
September 2010
the
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