list at ginda.us
Sat Jun 16 07:22:47 EDT 2007
On Jun 16, 2007, at 3:05 AM, Stephen Sadler wrote:
> No Wilt contains two "natural polymers". . . .
> I'm not super convinced that it does any good. It tries to stop
> plants from
> exhaling, and losing water. If you stopped a person from exhaling
> in order
> to slow or prevent dehydration, it would have that effect, but
> would also
> have other undesirable effects. If it worked well enough to really
> moisture loss, it would interfere with the plant's natural
> processes and it
> would die. The reason it doesn't kill plants would be that it
> doesn't work
> all that well.
. . .
Judging from your analogy, it seems to me it might work, even in a
drought. I often wear a surgical mask when I'm on a long airplane
flight. I don't do it for the germs, I do it because the mask is an
excellent "antitranspirant". As I exhale, a lot of moisture I
breathe out is trapped in the mask, and when I breathe in, the fresh
air picks up that moisture. Since I started wearing a mask I stopped
having to drink lots of water on airplanes, I stopped getting sore
throats, and I get much less "jet lag". It turns out that the
symptoms I thought were jet lag were largely dehydration.
If a face mask can trap water without interfering with breathing (at
least, not enough to matter) it seems plausible that a waxy leaf
coating could do so, too.
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