Jack Albertson said:

adrug said:

I watched it and I didn't see anything out of the ordinary. I saw planes flying over head leaving trails of condensation like planes tend to do (depending on the weather conditions). They do that, you know!

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Contrails fade within seconds, chemtrails linger around for hours and then spread out and become artificial clouds, changing an otherwise clear and sunny day into overcast or stormy conditions.

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Lorek said:

How would one explain gold dust falling from the sky?

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Quote:

Although deadly bacteria grab headlines because they can be used as a terrorist weapon, they're also our everyday neighbors. Botulism is caused by the bacterium Clostridium botulinum, which is commonly found in the soil and the intestinal tracts of animals. And anthrax, which is caused by Bacillus anthracis, is an infectious livestock disease. Inevitably, some of these bacteria become aerosolized, meaning they float away in the slightest breeze, and usually in concentrations so small they remain harmless. Their only threat is to confound the search for potentially dangerous concentrations of bacteria, which is why it's necessary to record everything that lurks in the air—the good, the bad, and the esoteric.

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Jack Albertson said:

are you implying that the sample was contaminated by all of the things at the altitude of aircraft? why would that shit just be lingering around in the air?

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Redstorm said:

Jack Albertson said:

adrug said:

I watched it and I didn't see anything out of the ordinary. I saw planes flying over head leaving trails of condensation like planes tend to do (depending on the weather conditions). They do that, you know!

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Contrails fade within seconds, chemtrails linger around for hours and then spread out and become artificial clouds, changing an otherwise clear and sunny day into overcast or stormy conditions.

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Do you have sources  for the fade rates?

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adrug said:

Do you people actually find it surprising that there are types of bacteria in the air?

http://www.lbl.gov/Science-Articles/Archive/sb-ESD-cataloging-bacteria.html

Quote:

Although deadly bacteria grab headlines because they can be used as a terrorist weapon, they're also our everyday neighbors. Botulism is caused by the bacterium Clostridium botulinum, which is commonly found in the soil and the intestinal tracts of animals. And anthrax, which is caused by Bacillus anthracis, is an infectious livestock disease. Inevitably, some of these bacteria become aerosolized, meaning they float away in the slightest breeze, and usually in concentrations so small they remain harmless. Their only threat is to confound the search for potentially dangerous concentrations of bacteria, which is why it's necessary to record everything that lurks in the air�the good, the bad, and the esoteric.

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Quote:

New Microorganisms Discovered In Earth's Stratosphere

ScienceDaily (Mar. 18, 2009) — Three new species of bacteria, which are not found on Earth and which are highly resistant to ultra-violet radiation, have been discovered in the upper stratosphere by Indian scientists.

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Lorek said:

http://www.carnicom.com/bio1.htm

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Quote:

Abstract  A joint effort between the U.S. Geological Survey's (USGS) Global Desert Dust and NASA's Stratospheric and Cosmic Dust Programs identified culturable microbes from an air sample collected at an altitude of 20,000 m. A total of 4 fungal (Penicillium sp.) and 71 bacteria colony-forming units (70 colonies of Bacillus luciferensis believed to have originated from a single cell collected at altitude and one colony ofBacillus sphaericus) were enumerated, isolated and identified using a morphological key and 16S rDNA sequencing respectively. All of the isolates identified were spore-forming pigmented fungi or bacteria of terrestrial origin and demonstrate that the presence of viable microorganisms in Earth's upper atmosphere may not be uncommon.

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Quote:

Persistent contrail formation requires air that is ice-supersaturated (Brewer, 1946). Ice-supersaturated air is often free of visible clouds (Sassen, 1997) because the supersaturation is too small for ice particle nucleation to occur (Heymsfield et al., 1998b). Supersaturated regions are expected to be quite common in the upper troposphere (Ludlam, 1980). The presence of persistent contrails demonstrates that the upper troposphere contains air that is ice-supersaturated but will not form clouds unless initiated by aircraft exhaust (Jensen et al., 1998a). Aircraft initiate contrail formation by increasing the humidity within their exhaust trails, whereas local atmospheric conditions govern the subsequent evolution of contrail cirrus clouds. Indeed, the ice mass in long-lasting contrails originates almost completely from ambient water vapor (Knollenberg, 1972).

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