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<DIV><FONT size=3D2>If you can see the led shining next to the razor, =
then you=20
have most of the battle won. Distance is the next step. With =
your=20
eye next to the razor and simultaneously seeing the led in the mirror, =
back up=20
keeping the led in sight. If it doesn't enlarge and overcome the =
entire=20
mirror, then your assembly is too far from the mirror. If that is =
the case=20
scoot the hole kahuna closer to the mirror. When the slit past the =
razor=20
is in the correct neighborhood the entire mirror shouldl appear =
lit. The=20
other case is if the assembly is too close to the mirror. Then =
when you=20
back up keeping the led in sight the led will then get large and fill =
the whole=20
mirror. In that case, you should move the razor/light half way =
between its=20
current position and where your eye sees it fill the mirror. =
Holler if=20
this doesn't help.</FONT></DIV>
<DIV><FONT size=3D2>name deleted</FONT> </DIV>
<DIV><FONT size=3D2>email deletedt</FONT> </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: =
5px">
<DIV><FONT face=3DArial size=3D2><B>-----Original =
Message-----</B><BR><B>From:=20
</B>name deleted <<A=20
href=3D"mailto:emaildeleted">emaildeleted</A>><BR><B>To: =
</B>atm <<A=20
href=3D"mailto:emaildeleted">emaildeleted</A>><BR><B>Date: =
</B>Sunday,=20
January 11, 1998 11:10 PM<BR><B>Subject: </B>ATM Major confusion =
with=20
Foucault tester.<BR><BR></DIV></FONT>
<DIV><FONT color=3D#000000 size=3D2>O.K., I just finished my =
slitless foucault=20
tester.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I am using a 12000 mcd super bright lcd to =
illuminate the=20
mirror.</FONT></DIV>
<DIV><FONT size=3D2>The mirror is 7", F7.6.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>The mirror is about 8 feet from =
the test=20
end.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I adjusted the half moon reflection to be about =
the same=20
size as the light source.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>I have a half moon reflection begin reflected on =
top of=20
the razor blade.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I have the assembly on a micrometer so that it =
can move=20
evenly across the path of the half moon.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I am able to allow small slit of =
light to=20
pass past the razor.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I do not see any image which I =
would=20
interpret as a shadow gram.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>When I allow more of the =
reflected half moon=20
to pass past the razor, I see nothing except a very bright=20
reflection.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>What am I doing wrong?</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I do not understand how a shadow is supposed to =
be=20
produced by this.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>name deleted.</FONT></DIV></BLOCKQUOTE></BODY></HTML>
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