SCIENTIFIC AMERICAN
contents february 2007 Volume 296 Number 2 features
[IMG]http://i160.photobucket.com/albums/t191/leviberat/sciam.jpg[/IMG]
h++p://rapidshare.com/files/14927327/scientific_american_february_2007.pdf
The Universes Invisible Hand
Dark energy does more than hurry along the expansion of the universe.
It also has a stranglehold on the shape and spacing of galaxies.
Tracking an Ancient Killer
The case was coldthe bones in the mass grave were
70 million years old. But critical clues pointed to the
killers identity.
Methane, Plants and Climate Change
The surprising discovery that living plants produce a potent
greenhouse gas poses new questions for managing global warming.
Making Silicon Lase
Scientists have at last persuaded silicon to emit laser beams.
In a few years, computers and other devices will handle light
as well as electrons.
Spice Healer
An ingredient in curry shows promise for treating Alzheimers,
cancer and other diseases.
Digital TV at Last?
Analog TV broadcasting is set to end in two years, but its
legacy could make the digital transition anything but smooth.
Molecular Lego
Small molecular building blocks that snap together rigidly
enable chemists to design and manufacture nanometer-scale
structures in virtually any shape.
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Id-ebook/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/Id-ebook/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED]
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
