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<big><font size="2"><big>There's a link on my homepage about an
article (from The Columbus<br>
Dispatch) about geckos and why their feet are "sticky" and
they can<br>
climb on walls. It has to do with van der Waals attractive
forces.<br>
These are London Forces and Dipole-Dipole AF. In this case,
largely<br>
(if not entirely) LF. Amazing, something you've learned about
this<br>
semester is actually applicable in your everyday life. Well,
at least<br>
if you are a gecko or want to climb on walls like one.
Someday that<br>
may just be possible. They are now developing adhesives that<br>
mimic the little hairs on the geckos feet that allow it to
cling<br>
to walls. These adhesives and tapes will be reusable.<br>
<br>
You will find the link toward the bottom of my homepage and
I've<br>
included it here,<br>
<br>
<a class="moz-txt-link-freetext"
href="http://www.chemistry.ohio-state.edu/%7Erzellmer/gecko.pdf">http://www.chemistry.ohio-state.edu/~rzellmer/gecko.pdf</a><br>
<br>
</big></font></big><br>
<big><font size="2"><big>A group at the University of Akron (among
other places) has developed<br>
a tape that works w/o any glue by mimicking how a gecko's foot
works.<br>
The home page is<br>
<br>
<a href="http://blogs.uakron.edu/dhinojwala/">http://blogs.uakron.edu/dhinojwala/</a><br>
<br>
<br>
</big></font></big>There is a product called Geckskin developed
at UMass that uses the same van der Waal force
<br>
principals. A 3x5 notecard sized piece of the material can hold a
700 lb. block of metal to glass.
<br>
The link is below.
<br>
<br>
<a class="moz-txt-link-freetext" href="https://geckskin.umass.edu/">https://geckskin.umass.edu/</a>
<br>
<br>
Dr. Zellmer
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