[TheForge] laser-etched metal "boounces" waterx

[Bruce .]

Very interesting, but something strikes me as odd:  Notice: (1) The demo
always involves dropping the water from a  height.  I'd like to see water
applied with less potential energy -- and thus less kinetic energy when it
makes contact with the surface. (2) The test piece has a center region and
a margin.  The implication is that it is the center region that is altered
by laser, yet the entire piece seems to be highly hydrophobic, to judge by
the behavior of the droplets.

Obviously, I am going by this video only, which is scarcely the entire
story.  Nonetheless, I find myself highly skeptical of the purported
results and will likely remain so till I see more convincing evidence.

Bruce
NJ

On Thu, Jan 29, 2015 at 12:07 PM, Dick Snow <dick.snow at pobox.com> wrote:

> Here's another video from the people who did this:
> http://boingboing.net/2015/01/26/watch-how-to-laser-etch-metal.html
> They also produced a surface treatment that is the opposite and attracts
> water to such a degree, it flows uphill.
>
> Dick Snow
> Datalytics, Incorporated
> Efland, NC
>
>
> -----Original Message-----
> From: TheForge [mailto:theforge-bounces at mailman.qth.net] On Behalf Of
> terry
> l. ridder
> Sent: Thursday, January 22, 2015 8:07 PM
> To: theforge e-mail list
> Subject: [TheForge] laser-etched metal "boounces" waterx
>
> Hello;
>
> from the bbc news technology section today
>
> Laser-etched metal 'bounces' water
> http://www.bbc.co.uk/news/science-environment-30915266
>
>
> is there a pracital application for this technology?
>
>
> --
> terry l. ridder ><>
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