<TD WIDTH=323 VALIGN=TOP COLSPAN=2><!--Top Montage with link descriptions--><IMG NAME="descrip" SRC="../subimages/top_off.jpg" ALT="Montage of images and link description." WIDTH="323" HEIGHT="36" BORDER="0"></TD>
<TD ROWSPAN=2 WIDTH=124 VALIGN=TOP><!--Amex Logo--><A HREF="../index.html" onmouseover="on('feature')" onmouseout="off('feature')"><IMG NAME="feature" SRC="../subimages/logo.gif" ALT="Race for the Superbomb" WIDTH="124" HEIGHT="67" BORDER="0"></A></TD>
<TD VALIGN=TOP ROWSPAN=2 WIDTH=93><!--kids | home button --><A HREF="../../subimages/k_h_off.map"><IMG NAME="kidhome" SRC="../subimages/k_h_off.gif" ALT="Imagemap: linked to kids and home" WIDTH="93" HEIGHT="36" USEMAP="#kidshome" BORDER="0" ISMAP></A></TD>
</TR>
<TR>
<TD WIDTH=121><!--Television Program--><A HREF="../../subimages/film_off.map"><IMG NAME="film" SRC="../subimages/film_off.gif" ALT="The Film and More" WIDTH="121" HEIGHT="31" ISMAP USEMAP="#filmprog" BORDER="0"></A></TD>
<DD>The fission bomb detonated over Hiroshima had the explosive blast equivalent to 12,500 tons of TNT. Blast Mapper's hydrogen bomb, hypothetically detonated on the earth's surface at any location you choose, has about 80 times the blast power of that 1945 explosion.
One of the effects of nuclear weapons detonated on or near the earth's surface is the resulting radioactive fallout. Immediately after the detonation, a great deal of earth and debris, made radioactive by the blast, is carried high into the atmosphere, forming the now infamous mushroom cloud. The material drifts downwind and gradually falls back to earth, contaminating thousands of square miles. Make this selection if you wish to see the fallout pattern over a seven-day period.
<DD>This is a big bomb. At 25 megatons, it has about 2,000 times the explosive power of the fission bomb used on Hiroshima. Exploding it high in the atmosphere, at 17,500 feet, will maximize its destructive range.
</DL>
</TD></TR>
</TABLE>
<BR><BR>
<B>Step 2: Enter Location of Target</B><BR><BR>
<DL>
<DT>
<DD>Enter a location in the United States. You may want to select a large city or some other possible target near your home.<P>