What we need is a device that illuminates a plant or tree to the
degree in which it receives an amount of water. For example, as
the plant or tree is being watered, the outside surface of the tree
will 'glow' with a purple phosphorus as the water level within the
plant's roots rises. When sufficient water has been given to the
plant, the entire plant itself will then glow with an amber phosphorus
-- indicating enough water has been given.

How to make the plant or tree glow, however, is open to debate.

Paul

What in the freak have you been smoking?

Try using a water meter like everyone else, dude.


wrote in message
ups.com...
What we need is a device that illuminates a plant or tree to the
degree in which it receives an amount of water. For example, as
the plant or tree is being watered, the outside surface of the tree
will 'glow' with a purple phosphorus as the water level within the
plant's roots rises. When sufficient water has been given to the
plant, the entire plant itself will then glow with an amber phosphorus
-- indicating enough water has been given.

How to make the plant or tree glow, however, is open to debate.

Paul

"Cereus-validus......." schreef in
Try using a water meter like everyone else, dude.

***
Ah, the ultimate reactionary speaks...

Actually, ideas are cheap.
It did not cost the, say, ancient Babylonians anything to think:
"it would be nice if we could build a flying machine"

Making them come true is what costs work
PvR

Why not trying to record IR absorbance with a thermographic camera?
Plant will not shine baut you may register "colour" differences within
leaves. Of course you should calibrate it first, perhaps through water
potential measurements. Did you ever really find something about
glowing plants?

So you admit that you are bereft of any ideas, Rinkytink!!

Nonetheless, you still had to assert your presence even though you had
nothing at all relevant to say.

Even though ideas may be cheap, you haven't a single guilder to come up with
one of your own!!!


"P van Rijckevorsel" wrote in message
...
"Cereus-validus......." schreef in
Try using a water meter like everyone else, dude.

***
Ah, the ultimate reactionary speaks...

Actually, ideas are cheap.
It did not cost the, say, ancient Babylonians anything to think:
"it would be nice if we could build a flying machine"

Making them come true is what costs work
PvR

wrote in message
ups.com...
What we need is a device that illuminates a plant or tree to the
degree in which it receives an amount of water. For example, as
the plant or tree is being watered, the outside surface of the tree
will 'glow' with a purple phosphorus as the water level within the
plant's roots rises. When sufficient water has been given to the
plant, the entire plant itself will then glow with an amber phosphorus
-- indicating enough water has been given.

How to make the plant or tree glow, however, is open to debate.

Paul


Plants become flaccid and droop when they run out of water.
Therefore all that is needed is a device such as a strain gauge to determine
the degree of stiffness and erection at any point in time.
This could be connected to an automatic watering device to activate a
watering system on the first sign of flaccidity.

Alternatively one could insert a conductivity meter into the soil next to
the plant's roots which would measure the conductivity for different water
levels.