posted on Apr, 14 2010 @ 11:18 PM
Originally posted by Phage
No. It has nothing to do with contrails.
My specific question was: How do you tell the difference?
Each of those contains 50 grams of silver iodine.
What they look like when they fire, and you probably would not be able to see the flame itself from the ground.
Firing in the air:
China doing their own cloud-seeding in preparation for the Olympics:
Here's another example of cloud seeding:
Another one, more obvious this time:
And they use more than silver iodine to seed clouds, from the same link above:
Presently the most common materials for cloud seeding are dry ice and silver iodide, which has a hexagonal crystalline structure similar to that
of ice. Introducing silver iodide into a cloud that contains supercooled water is supposed to induce freezing nucleation, whereas the introduction of
dry ice cools the air so much that ice crystal can form spontaneously from the vapor phase. The structure of regular ice is well known at the
macroscale with ice structures usually built out of simple hexagonal arrangements of water molecules - this hexagonal building block motif is easily
observed in the structures of snowflakes. Ice structures however, are much more mysterious and less well understood at the nanoscale - particularly
when ice forms at an interface with matter as is the case in the higher atmosphere with particles of dust. Silver iodide is used because of its
hexagonal crystalline structure, but as reported in Nature Materials (March 2009) scientists led by researchers at the London Centre for
Nanotechnology (LCN) at UCL have discovered a novel one dimensional ice chain structure built from pentagons showing that ice can build an extended
one dimensional chain structure entirely from pentagons and not hexagons.
"This discovery leads to fundamental new understanding about the nature of hydrogen bonding at interfaces (there is no a priori rule that hexagons
should form) and suggests that when people are searching for new ice nucleating agents which can be used to seed clouds and cause rain, they do not
necessarily need to focus on materials that have hexagonal surfaces - other types of surfaces may be good too," says Dr Michaelides.
So how do you look at a picture of a trail that a plane leaves behind and tell what exactly that trail is made of?
I'm not stupid so I already know the answer: you can't
They could be spraying anything out of planes. Looking from the ground, and simply expecting someone to tell
you about it, is not exactly a
fool proof method of determining what is going on.
It's not about having evidence and proving what someone is dropping in the air. It's about people putting things in the air, and we have no way
in hell of telling what they are doing
. That is why it's a "conspiracy theory," because it's the public being "paranoid" (aka
"vigilant") about what is going on in the skies. There is no simple way to tell. From the ground.
[edit on 14-4-2010 by bsbray11]