reply to post by flyswatter
Just look up at the sky everyday. Watch, count, and record.
That is enough evidence to prove to anyone.
Originally posted by FreedomCommander
A contrail is just a gas frozen into a semi-liquid, floating in air and semi-free from the push of gravity, then transforms back into a gas.
Contrails are clouds of ice particles formed around the small particles (aerosols) which are in aircraft exhaust. When these persist after the passage of the plane they are of great interest to researchers. Under the right conditions, clouds initiated by passing aircraft can spread with time to cover the whole sky.
Contrails are clouds, usually cirrus, formed when water vapor condenses and freezes around small particles (aerosols) that exist in aircraft exhaust. Some of that water vapor comes from the air around the plane; and, some is added by the exhaust of the aircraft.
Originally posted by FreedomCommander
reply to post by flyswatter
Just look up at the sky everyday. Watch, count, and record.
That is enough evidence to prove to anyone.
Why Is There Concern About Contrails? Contrails, especially persistent contrails, represent a human-caused increase in high thin clouds in the Earth's atmosphere, and are likely to be affecting climate and ultimately our natural resources. Scientists are concerned about contrails because predicted increases in air-traffic could result in a continued increase in cloud cover. In the 1995 NOAA-12 satellite photo to the left, the contrails were long-lived enough to accumulate with many criss-cross patterns over the same heavily traveled portion of air space in Europe.
Emissions include carbon dioxide, water vapor, nitrogen oxides, carbon monoxide, hydrocarbons such as methane, sulfates, and soot and metal particles.
Originally posted by FreedomCommander
reply to post by Aloysius the Gaul
Water would be an ice cube at that height, wouldn't you agree?
Originally posted by Rudy2shoes
Pima county states there is concern over contrails
affecting climate?
I thought they were harmless.
Metal particles?
www.deq.pima.gov...
Why Is There Concern About Contrails? Contrails, especially persistent contrails, represent a human-caused increase in high thin clouds in the Earth's atmosphere, and are likely to be affecting climate and ultimately our natural resources. Scientists are concerned about contrails because predicted increases in air-traffic could result in a continued increase in cloud cover. In the 1995 NOAA-12 satellite photo to the left, the contrails were long-lived enough to accumulate with many criss-cross patterns over the same heavily traveled portion of air space in Europe.
Emissions include carbon dioxide, water vapor, nitrogen oxides, carbon monoxide, hydrocarbons such as methane, sulfates, and soot and metal particles.edit on 20-11-2012 by Rudy2shoes because: (no reason given)
Originally posted by Rudy2shoes
Pima county states there is concern over contrails
affecting climate?
I thought they were harmless.
www.deq.pima.gov...
Why Is There Concern About Contrails? Contrails, especially persistent contrails, represent a human-caused increase in high thin clouds in the Earth's atmosphere, and are likely to be affecting climate and ultimately our natural resources. Scientists are concerned about contrails because predicted increases in air-traffic could result in a continued increase in cloud cover. In the 1995 NOAA-12 satellite photo to the left, the contrails were long-lived enough to accumulate with many criss-cross patterns over the same heavily traveled portion of air space in Europe.
Emissions include carbon dioxide, water vapor, nitrogen oxides, carbon monoxide, hydrocarbons such as methane, sulfates, and soot and metal particles.
Metal particles? (this bit shifted from the original)
Aircraft engines emit water vapor, carbon dioxide (CO2), small amounts of nitrogen oxides- USAF contrail facts
(NOx), hydrocarbons, carbon monoxide, sulfur gases, and soot and metal particles formed by
the high-temperature combustion of jet fuel during flight.
Metal Composition of Jet Engine Exhaust
Chemical analyses of jet engine exhaust samples indicate that the
exhaust contains heavy metals. Exhaust samples collected at the jet
engine test cell showed substantial increases in metal concentrations
above the control sample, as shown in Figure 5. Zinc, copper,
and beryllium were all observed at levels 100 percent above the
control. Lead levels were 50 percent above the control; cobalt and
vanadium were observed at less dramatically increased levels—25
and 28.6 percent, respectively. After establishment of this baseline
metal signature for JEPs, sediment collected at field study sites was
analyzed for heavy-metal content. Results indicate that all of the
heavy metals found in the samples of jet exhaust were present in
the sediments of field sites near airports, as shown in Figure 6. Sediments
from the site near LAX contained higher levels of all the
potential aviation fingerprint metals than did sediments from the
study site near Santa Barbara Regional Airport. Whereas zinc, copper,
and beryllium levels were equal in exhaust collected from the
test cell, copper and especially beryllium levels were substantially
lower than that of zinc in field sediments. This may be because of
chemical transformations or preferential biological uptake of these
metals in the wetland environment.
3.2.3.2 Metal Particles
Aircraft jet engines also directly emit metal particles. Their sources include engine erosion and the combustion of fuel containing trace metal impurities or metal particles that enter the exhaust with the fuel (Chapter 7). Metal particles-comprising elements such as Al, Ti, Cr, Fe, Ni, and Ba-are estimated to be present at the parts per billion by volume (ppbv) level at nozzle exit planes (CIAP, 1975; Fordyce and Sheibley, 1975). The corresponding concentrations of 107 to 108 particles/kg fuel (assuming 1-mm radius; see below) are much smaller than for soot. Although metals have been found as residuals in cirrus and contrail ice particles (Chen et al., 1998; Petzold et al., 1998; Twohy and Gandrud, 1998), their number and associated mass are considered too small to affect the formation or properties of more abundant volatile and soot plume aerosol particles.
What are contrails?
Contrails are clouds formed when water vapor condenses and freezes around small particles (aerosols) that exist in aircraft exhaust. Some of that water vapor comes from the air around the plane; and, some is added by the exhaust of the aircraft.
The exhaust of an aircraft contains both gas (vapor) and solid particles. Both of these are important in the formation of contrails. Some elements of the exhaust gasses are not involved in contrail formation but do constitute air pollution. Emissions include carbon dioxide, water vapor, nitrogen oxides (NOx), carbon monoxide, hydrocarbons such as methane, sulfates (SOx), and soot and metal particles.
Originally posted by Aloysius the Gaul
reply to post by Rudy2shoes
You are answering my question by asking me exactly the same one?
Can't you figure it out for yourself????
I don't weant to answer you because I think you should be able to decide for yourself and not just repeat something I have said.
Originally posted by FreedomCommander
then answer me this tiny little question: What are chemtrails?
Contrail-like cloud left by aircraft believed by "spiritual" people to contain chemicals or crystals. These chemtrails are allegedly part of a secret government program either to save earth from global warming or to kill off half of humanity.
A nickname for contrail clouds left behind by planes
bull# conspiracy theory
I see ye visibly, and now believe That he, the Supreme Good, to whom all things ill Are but as slavish officers of vengeance, Would send a glistering guardian, if need were To keep my life and honour unassailed. Was I deceived, or did a sable cloud Turn forth her silver lining on the night? I did not err; there does a sable cloud Turn forth her silver lining on the night, And casts a gleam over this tufted grove.