<html>
<font size=6 color="#000080"><b><u>Earth System Initiative
Seminar<br><br>
</u></font><font size=5 color="#FF0000">Thursday April 29, 12 Noon,
68-181 <br><br>
</font><font size=5 color="#800000">Part II of a two lecture
series:<br><br>
</font><font size=6 color="#800000">"Origin of Life II: The View
>From Earth"<br><br>
</font><font size=5 color="#FF0000">Dr. Hyman Hartman<br>
</font><font size=4 color="#FF0000">Biological Engineering Division, MIT
<br><br>
</font><font face="Arial, Helvetica" size=2>Starting from a view of the
earth from space, we will outline what are the ingredients for
originating and maintaining Life. Our present view of the primitive earth
is that there was no primordial soup at the Origin of Life. We will then
trace out an autotrophic origin of life or a life form that got its
carbon from CO<sub>2</sub> and its nitrogen from N<sub>2</sub>. We will
then outline the origin and evolution of metabolism that implies that
there was an inorganic form of life. Iron-rich clays
dominated this inorganic replicating and evolving system. This system
driven by light fixed carbon dioxide and nitrogen into what evolved into
an RNA-Protein world. The origin of life thus began with the Clay
world.<br><br>
</font><font color="#800000">Lunch will be served<br><br>
This is the second lecture in a two part series. However you do not need
to have attended the first lecture.<br>
</b></font><x-sigsep><p></x-sigsep>
Matthew Gardner, Ph.D.<br>
Program Administrator<br>
Earth System Initiative, 16-177<br>
Massachusetts Institute of Technology<br>
Cambridge, MA, 02139<br>
617.253.6895<br>
<a href="http://web.mit.edu/esi" eudora="autourl">http://web.mit.edu/esi</a></html>