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Dust

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eggshaped
57074.  Sun Mar 05, 2006 8:08 am Reply with quote

Question: Why does it always rain at the weekend?

Answer: It’s our fault, all this pollution.

Notes:
Clouds are made of water vapour, lots and lost of tiny water particles, but without the presence of dust, upon whose surface the water generally can gather, water vapour wouldn’t begin to condense until the relative humidity reached 300 percent.

So dust helps to form clouds, and as humans, we are producing one hell of a lot of dust - how does one effect the other? The answer may have been found in a study of the North East Coast of America, where it was found that the weather seemed to be following a 7 day pattern. Nature doesn’t generally follow 7 day patterns, they’re a human invention, so it seems that the weekly driving, combusting and manufacturing creates a 7day dust cycle which crescendos towards the weekend, and leads to the statistical fact that slightly more rain falls on a Saturday than the rest of the week.

http://www.scienceagogo.com/news/19980706131634data_trunc_sys.shtml
http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0000706.html
http://www.nature.com/nature/journal/v394/n6693/abs/394561a0_fs.html;jsessionid=1A5CE633A5BDFB8B7C1C1C90690F9387

 
Molly Cule
58692.  Fri Mar 10, 2006 9:31 am Reply with quote

American Scientist claims dust could be responsible for coral reef deterioration in the Caribbean. Saharan desert dust has given a trans-Atlantic ride to bacteria and fungi which then settle into the warm waters of the Caribbean.

 
eggshaped
59617.  Tue Mar 14, 2006 6:02 am Reply with quote

Further to my post on the other forum:

Question: Why should you not eat yellow snow?

Answer: Because it may contain heavy minerals and pollutants.

Notes:
South Koreans have been warned this week to stay indoors or wear protective masks, after an outbreak of yellow snow on the peninsula. The snow which contains dust from the Chinese deserts could pose a health hazard as it contains “heavy minerals and pollutants“, says the local meteorological office.

Earlier Notes:
The Sahara is probably the biggest supplier of desert dust in the world, and a bit of dust can travel a long way. Montain geologist Anders Rapp, reported in "Yellow snow over the Alps and Subarctic from dust storm in Africa, March 1991" that the occasional yellowing of alpine and finnish snow is down to these dusts.

Dust is not always the reason for yellowing of snow - in Pennsylvania, local pollen can be to blame - and indeed yellow is not the only unusual colour. The alps have also seen blue snow, caused by Saharan copper-salts and red snow has been noted in the arctic, caused by red-tinted, microscopic plants and animals.

S:
http://www.weathernetwork.ca/inter/help/precipitation.htm
http://www.findarticles.com/p/articles/mi_qa3712/is_199906/ai_n8868396
The Secret Life of Dust - Hannah Holmes
http://uk.news.yahoo.com/13032006/80-132/south-korea-gets-rare-yellow-snowfall.html

Anyone know what particular health hazards these "heavy minerals" could cause? I assume some kind of respiratory problems, or could they contain lead or even radioactive dusts?

 
eggshaped
156047.  Tue Mar 13, 2007 7:31 am Reply with quote

New study confirming what we said about wet weekends on the show last year.

 
Gray
156091.  Tue Mar 13, 2007 8:44 am Reply with quote

As far as I can remember (brilliant source, eh?!) Wednesdays are usually very fine - due, then, to the weekend dumping.

 
eggshaped
269793.  Sat Feb 02, 2008 9:23 am Reply with quote

Retraction special perhaps, latest study says that it rains less at the weekend. Still due to pollution though.

http://www.livescience.com/environment/080201-weekend-rain.html

 
Lumpo31
269873.  Sat Feb 02, 2008 3:36 pm Reply with quote

Steve Wright on his Radio 2 "factoids" segment has it that it rains more on Thursdays than any other day of the week. Not that he's infallible, by any means...

 
smiley_face
269880.  Sat Feb 02, 2008 4:34 pm Reply with quote

Can I just point out that Sod's Law has yet to be mentioned in this discussion?

 
Hypnobabe
269955.  Sat Feb 02, 2008 7:49 pm Reply with quote

Am I the only plebian on the forum who read this thread title and instantly thought of Marjorie Dawes on Little Britain?

"Dust.. Anybody? No? Little bit of dust?"

 
Bondee
270160.  Sun Feb 03, 2008 12:46 pm Reply with quote

Hypnobabe wrote:
Am I the only plebian on the forum who read this thread title and instantly thought of Marjorie Dawes on Little Britain?

"Dust.. Anybody? No? Little bit of dust?"


No, you're not! : )

"Is it high in fat, or low in fat?"

 

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