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The physics of metallic scatterers – which, to be sure, also include small, thin metallic-walled superpressure balloons – suggest that they could most effectively scatter back into space the UV portions of solar insolation, just as do dielectric scatterers. These more highly engineered scatterers have significantly higher specific costs-to-emplace in the stratosphere than do dielectric aerosols, but their far lower masses result in estimated annual costs to address the reference year-2100 problem which may be as much as five times less than approaches of comparable power based on dielectrics: of the order of $0.2 B/year.1
Positioning of scatterers of incoming solar radiation in the Earth’s upper atmosphere – specifically, the middle to upper stratosphere – is a now-venerable approach that appears to provide the most practical deployment, as operational lifetimes of such engineered scatterers can be as long as a half-decade; required replacement rates are correspondingly modest. Thus, the stratosphere is where we propose to deploy all of the insolation-modulation scattering systems that we propose for near-term study.
Metallics may be more cost effective, making them the "favored" method. It doesn't matter, the visual effects would be the same because of the purpose they would be used for.
One of the most obvious side effects of the formation of contrails is the impact on astronomy. One has seldom a clear sky available for observation in areas with dense air traffic.
Originally posted by tsurfer2000h
reply to post by luxordelphi
Positioning of scatterers of incoming solar radiation in the Earth’s upper atmosphere – specifically, the middle to upper stratosphere – is a now-venerable approach that appears to provide the most practical deployment, as operational lifetimes of such engineered scatterers can be as long as a half-decade; required replacement rates are correspondingly modest. Thus, the stratosphere is where we propose to deploy all of the insolation-modulation scattering systems that we propose for near-term study.
www.osti.gov...
So you do know the difference between the middle to upper atmosphere and how high planes fly,right? Here is a link that may help you out...
calipsooutreach.hamptonu.edu...
you have no idea what could be in those trails
Just because you cant 'see' it, doesnt mean it doesnt exist... or further more; a part of something else...
The tactic, to debunk my link, will fall on certain debunkers here, as we will soon see. They will scoff at the writer, but not really address much else of real substance. Others focus on the contrail science aspect because they know how contrails work, there are very few scientists here, and they love to expose the layman as being ignorant of "the science", as if their science explains everything we see.
Are you kidding? Yes they do. And yes a patent most certainly means that technology exists... otherwise you are being naive.
In his 1934 French book Le vol des insectes, M. Magnan wrote that he and a M. Saint-Lague had applied the equations of air resistance to bumblebees and found that their flight could not be explained by fixed-wing calculations, but that "One shouldn't be surprised that the results of the calculations don't square with reality". This has led to a common misconception that bees "violate aerodynamic theory", but in fact it merely confirms that bees do not engage in fixed-wing flight, and that their flight is explained by other mechanics, such as those used by helicopters.
In 1996 Charlie Ellington at Cambridge University showed that vortices created by many insects’ wings and non-linear effects were a vital source of lift; vortices and non-linear phenomena are notoriously difficult areas of hydrodynamics, which has made for slow progress in theoretical understanding of insect flight.
In 2005, Michael Dickinson and his Caltech colleagues studied honey bee flight with the assistance of high-speed cinematography and a giant robotic mock-up of a bee wing. Their analysis revealed that sufficient lift was generated by "the unconventional combination of short, choppy wing strokes, a rapid rotation of the wing as it flops over and reverses direction, and a very fast wing-beat frequency". Wing-beat frequency normally increases as size decreases, but as the bee's wing beat covers such a small arc, it flaps approximately 230 times per second, faster than a fruitfly (200 times per second) which is 80 times smaller.
Originally posted by dplum517
Most of the patents you guys point to deal with weather modification not areosol spraying of deadly chemicals (that's why it's called chemtrails)
Are you kidding? Yes they do. And yes a patent most certainly means that technology exists... otherwise you are being naive.