"Sept. 8, 1854: Pump Shutdown Stops London Cholera Outbreak"
This Day in Tech, Wired (September 8, 2009)
"1854: Physician John Snow convinces a London local council to remove the handle from a pump in Soho. A deadly cholera epidemic in the neighborhood comes to an end immediately, though perhaps serendipitously. Snow maps the outbreak to prove his point … and launches modern epidemiology.
The Soho neighborhood was not then filled with galleries, clubs, restaurants and other fine urban diversions. Some of it was an unsanitary slum where centuries-old cesspits sat chockablock with the wells that provided drinking water to a crowded populace....
"...His hypothesis (and supporting data) held that the scourge was caused by sewage pollution in drinking water and 'always commences with disturbances of the functions of the alimentary canal.'
"This position went largely ignored by the medical establishment and authorities and was opposed by a local water company near one London outbreak. Prevailing views thought that, as with most diseases, 'miasma' or bad air was the culprit...."
The Wired article is a pretty good summary of how Snow tracked down the source of Cholera - and why some people weren't affected.
It's also, I think, another example of how recognized, established, experts in a field may not have the best handle on reality. We don't hear about phlogiston and miasma now - although "miasma" was still used in literature for a while: "Miasmic vapors rose" and all that.
On the other hand, a new idea isn't right because it's new. What Snow had was a mass of facts to back up his conclusion. And, civic authorities who were so desperate that they'd act against the wishes and presumed wisdom on a water country and doctors.
And, as it turned out, Snow was right. Although the dramatic timing may have been more a matter of what Western culture calls "luck," than entirely an effect of the missing handle.
Finally: This is another reason why I'm not all that nostalgic about "the good old days."
Tuesday, September 8, 2009
Cholera from Water? Everybody Knows it's Spread by Miasma!
Labels:
common sense,
history,
medicine,
science,
the human condition,
water
Subscribe to:
Post Comments (Atom)
Unique, innovative candles
Visit us online: | |
Spiral Light Candle | • Find a Retailer • Spiral Light Candle online store |
Top 10 Most-Viewed Posts
-
(from INKCINCT Cartoons, used w/o permission) I very seldom copy an entire post in this blog, but trying to describe this cartoon would have...
-
" Coconut crab " AbsoluteAstronomy.com " The coconut crab, Birgus latro, is the largest land-living arthropod in the world an...
-
Ploak.com Article Directory " Your one-stop source for free articles. Do you need contents to add to your web site? Or articles for use...
-
" How to Think Like an Interior Designer " Jaime Derringer, via Shelpterpop (July 29, 2010) " It takes a unique mind to perfe...
-
Before anything else, repeating from an earlier post: Google has launched a 'people finder' for Japan, in Japanese, English, Korea...
-
Update (October 11, 2010) Another article about Reaction Engines Ltd.'s Skylon: " Airplanes in Space? " Irene Klotz, Space ...
-
" Stan Lee Unveils 3 New Superheroes at Comic-Con " Underwire, Wired (July 22, 2010) " A time traveler, an unwitting heir to ...
-
" Hellgrammite (Dobsonfly Larvae) (Corydalus cornutus) " Texas Parks and Wildlife " Other Names " Eastern Dobsonfly ...
-
" 'Lost City' of Tanis Found, but Often Forgotten " Brian Handwerk, Mysteries of the Ancient World, National Geographic (...
-
Whether you call it trafficking in persons, human trafficking, or slavery, buying and selling people isn't nice. And, in quite a few cou...
Today's News! Some of it, anyway
Actually, some of yesterday's news may be here. Or maybe last week's.
The software and science stuff might still be interesting, though. Or not.
The Lemming thinks it's interesting: Your experience may vary.
The software and science stuff might still be interesting, though. Or not.
The Lemming thinks it's interesting: Your experience may vary.
("Following" list moved here, after Blogger changed formats)
No comments:
Post a Comment