To: http://selfishchimp.posterous.com/

Thanks!

Some things from the last two months I really liked but never got around to talking about. I promise to only do round-ups every couple months.

• Video: History of the Internet – ReadWriteWeb
  • http://www.readwriteweb.com/archives/video_history_of_the_internet.php
  • If you’ve ever wondered how the Internet was born, but can’t be bothered reading a whole book on the subject, check out this short animated documentary from Milah Bilgil. Entitled History of the internet, it does a great job explaining time-sharing, file-sharing, arpanet and internet. The video uses a new type of info-graphic called PICOL icons, which will soon be made available for free on picol.org. PICOL stands for Pictorial Communication Language – it’s a project that aims to create “a standard and reduced sign system for electronic communicatio.”  PICOL is free to use and open to alter.
• Ptak Science Books: Things that Are Just Simply Wrong: War Gases and Babies; Protective Suits for Children and Babies, 1943
  • http://longstreet.typepad.com/thesciencebookstore/2009/01/things-that-are-just-simply-wrong-war-gases-and-babies-protective-suits-for-children-and-babies-1943.html
  • Like pornography and art, things that are just plain wrong are instantly recognizable.  And this, my dear reader, is a fine example of that thinking. Anti-Gas Protective Helmet for Babies, Manual of Instructions was prepared for the Office of the Director of Civil Air Raid Precautions of Ottawa, Canada, and published in 1943.
• Gallery – Visions of the ice caps before climate change – Image 1 – New Scientist
  • http://www.newscientist.com/gallery/dn16381-polar-paintings/
  • The first polar paintings were made by explorers with some artistic training. These and many others are on display at the Peabody Essex Museum, Salem, Massachusetts, in To the Ends of the Earth: Painting the Polar Landscape.
• Nuclear apocalypse and the Letter of Last Resort. – By Ron Rosenbaum – Slate Magazine
  • http://www.slate.com/id/2208219
  • In the case of the Letter of Last Resort, the reference turns out to be factual: At this very moment, miles beneath the surface of the ocean, there is a British nuclear submarine carrying powerful ICBMs (nuclear-armed intercontinental ballistic missiles). In the control room of the sub, the Daily Mail reports, “there is a safe attached to a control room floor. Inside that, there is an inner safe. And inside that sits a letter. It is addressed to the submarine commander and it is from the Prime Minister. In that letter, Gordon Brown conveys the most awesome decision of his political career … and none of us is ever likely to know what he decided.”
• Yochai Benkler on the new open-source economics | Video on TED.com
  • http://www.ted.com/index.php/talks/yochai_benkler_on_the_new_open_source_economics.html
  • Yochai Benkler explains how collaborative projects like Wikipedia and Linux represent the next stage of human organization.
• Philip Zimbardo shows how people become monsters … or heroes | Video on TED.com
  • http://www.ted.com/index.php/talks/philip_zimbardo_on_the_psychology_of_evil.html
  • Philip Zimbardo knows how easy it is for nice people to turn bad. In this talk, he shares insights and graphic unseen photos from the Abu Ghraib trials. Then he talks about the flip side: how easy it is to be a hero, and how we can rise to the challenge.
• English Russia ” Abandoned Russian Polar Nuclear Lighthouses
  • http://englishrussia.com/?p=2198
  • After reviewing different ideas on how to make them work for a years without service and any external power supply, Soviet engineers decided to implement atomic energy to power up those structures. So, special lightweight small atomic reactors were produced in limited series to be delivered to the Polar Circle lands and to be installed on the lighthouses. Those small reactors could work in the independent mode for years and didn’t require any human interference, so it was very handy in the situation like this. It was a kind of robot-lighthouse which counted itself the time of the year and the length of the daylight, turned on its lights when it was needed and sent radio signals to near by ships to warn them on their journey. It all looks like ran out the sci-fi book pages, but so they were.
• Browse Medicine and Madison Avenue
  • http://library.duke.edu/digitalcollections/mma/browse
  • A database of over 600 advertisements and historical documents dated between 1911 and 1958, relating to the creation and influence of health-related advertising.
• Benjamin Wallace on the price of happiness | Video on TED.com
  • http://www.ted.com/index.php/talks/benjamin_wallace_on_the_price_of_happiness.html
  • Can happiness be bought? To find out, author Benjamin Wallace sampled the world’s most expensive products, including a bottle of 1947 Chateau Cheval Blanc, 8 ounces of Kobe beef and the fabled (notorious) Kopi Luwak coffee. His critique may surprise you.
• Vancouver Aquarium – Beluga Cam
  • http://www.vanaqua.org/belugacam/index.html

From Duke University’s Emergence of Advertising in America archive comes this beautiful advertisement for Diamond Dyes, published sometime between 1853 and 1920. The ad uses the negative afterimage optical illusion, which is a common sight in most first year psychology textbooks, although usually in a much more boring way. This image is actually kind of frightening.

,

The Mysterious Diamond Eye Imp

Diamond Dyes

As I begin work on the theoretical side of my undergraduate thesis I find myself spending allot of time trying to keep track and organize the reams of sources and notes I’m quickly accumulating. And while I use some pretty specific and archaic tools when it comes to organizing and analyzing my actual data I figured I would share some of the more general tools I use, focusing specifically on open-source and cross-platform tools that could be used to any kind of research.

Browsing: Firefox

Not only is Firefox a superb and innovative browser (while also being both open source and cross-platform) but it’s extensive collection of add-ons make it an excellent platform for researchers and data hoarders. Many of the following tools are add-ons for Firefox and many, many other tools exist.

• Download Firefox: http://www.mozilla.com/en-US/firefox/
• Find Firefox Add-on: https://addons.mozilla.org/en-US/firefox/

Collection and Annotation: Scrapbook

Scrapbook is a Firefox add-on that lets you to save, organize, and annotate snapshots of websites locally. Typically I use scrapbook to save and annotate journal articles that are available in HTML format (i.e. that you can view in your browser) as well as regular web pages, but scrapbook is also useful when I want to archive pages that change frequently or that I want to access off-line.

Annotating a saved page in Scrapbook

• Scrapbook homepage: http://amb.vis.ne.jp/mozilla/scrapbook/
• Download Scrapbook Firefox Add-on: https://addons.mozilla.org/en-US/firefox/addon/427

PDF Annotation: Foxit Reader

While Scrapbook is great when your working with regular web pages, many journals only provide articles as a PDF files and this is when Foxit Reader comes to the rescue. Foxit is a lightweight PDF reader that includes annotation tools that let you markup and take notes directly in PDF files. While Foxit is commercial software, it is so fantastic that it is well worth the cost if your like me and spend allot of time working with PDF files. While it doesn’t come in a native Linux flavor it runs just fine under both Wine and Crossover.

Foxit Reader in Action

• Download Foxit: http://www.foxitsoftware.com/pdf/rd_intro.php

On-line Bibliographic Management: Citeulike and Connotea

Bibliographic management is a real pain and I have yet to find a tool I truly love. Refworks is probably the best on-line citation management tool I have used but I hesitate to lock myself into any tool that I will have to pay for once I am finished university.

Two free alternatives are Citeulike (sponsored by Springer) and Connotea (Sponsored by the Nature Publishing Group) which both offer citation collection and sharing. In my experience, unfortunately, neither service does a flawless job of detecting citation information and so you are frequently forced to manually enter your bibliographic information (oh the horror). Worse, for some inexplicable reason (probably legal) neither service allows references to be exported in finished bibliographic formats like Chicago or APA. Instead, references are exported in different desktop reference management formats (like Endnote or BibTex) which you then presumably use to prepare your finished bibliography.

Still, I think these services have their place, especially if already have desktop bibliographic software and want an easy way to collect and share citations while surfing the internets. Both services allow you to use your universities OpenURL service and make use of DOI links which makes them particularily handy for those with full-text access through their work or school.

Connotea

Citeulike

• Citeulike – http://www.citeulike.org
  • Citeulike FAQ: http://www.citeulike.org/faq/faq.adp
• Connotea – http://www.connotea.org
  • Connotea Guide – http://www.connotea.org/guide

Collection, Annotation, and Bibiliographic Management: Zotero

Zotero is a Firefox add-on that combines data collection and organization (like Scrapbook), with annotation tools (including highlighting and note taking) and bibliographic management (including publication-ready export) in one tool. Zotero lives completely in your browser — so everything is local and accessable whereever you are — while a new version currently in beta-testing will allow syncing and sharing through an on-line portal similar to Connotea and Citeulike.

Zotero in Action

• Learn about and get Zotero: http://www.zotero.org/

Quick Bookmarking: Delicious

Delicious is the one research tool I could not imagine living without. A on-line replacement for in-browser bookmarks, delicious lets you store, share, and search your bookmarks through a web portal. Delicious uses tags instead of folders for organization, which works far more efficiently when you have thousands of bookmarks that do not fall neatly into a single category. Even more impressive, Delicious has resisted the usual feature creep and visual bling that mares so many other web 2.0 services, remaining remarkably simple and stable for years. To see an example check out my Delicious bookmarks here and my tag list here.

Delicious Bookmarks

Bookmakring a website with the official Delicious Firefox Add-on

• Sign up for a Delicious account: http://delicious.com/
• Get the official Delicious Firefox Add-on: https://addons.mozilla.org/en-US/firefox/addon/3615

Backing up your data: Dropbox

While not really a research tool Dropbox is the tool that lets me sleep soundly at night when I finally step away from the computer. While losing your precious data is a nightmare for any confirmed data-hoarder it is a real terror for anyone in the middle of a large, data intensive project.

Regularly backing up your data is one of those chores everyone knows they should do and almost nobody does regularily.  The problem is that while backing up your data in the same location — or even worse, the same drive — as the original is essentially useless, off-site backup requires dragging around an external drive, reducing the likelihood that you do so regularly.

One solution to this problem is on-line backup services which use your Internet connection to transfer data on-line where it is safe and available from anywhere. Many different of these services exist and most offer basic accounts with a limited amount storage space (generally around 2GB) for free. My favorite of these services is Dropbox, which is simple to set-up and runs seamlessly in the background,  incrementally backing up your data as you work.

Dropbox does this by creating a directory inside you home folder and anything that is placed inside this directory gets automatically backed up to Drobox’s servers whenever it changes. In Linux this means that I can simply place a link to my existing research directories inside the Dropbox directory so I do not even need to change the location of any of my files (I know you can do the same with Windows, usually by right-clicking the file in explorer and creating a link, and I am sure OS X has similar functionality).

One caveat is that you should always have more than one backup solution in place, especially with these new on-line services that could potentially go out of business. For me this means a weekly DVD snapshots of my data to supplement my Dropbox account. Consider yourself warned.

• Sign up for Dropbox: http://www.getdropbox.com/
• Dropbox Tour: http://www.getdropbox.com/tour#1

From Bre Pettis via Make Magazine come these wonderful diagrams illustrating the dangers of electrocution in typically glorious Weimar fashion. From the book Elektroschutz in 132 Bildern By Stefan Jellinek. I like to think of these as filling a need to acculturate people to the dangers of electricity, and based on these images, I would guess electricity was pretty dangerous technology at the time.

This is one of the most normal diagrams in the collection.

One of the stranger ones.

A brief article and slideshow from New Scientist (Where do science supermachines go when they die?) on what happens to all of physics pretty toys when the atom smashers shut down.

An obsolete copper radiofrequency cavity from the Large Electron Positron collider now lies in the garden at CERN.

Finally,  Neil Fraser, a Google engineer, applied 9 MRI scans to 60 1-inch wood blocks to create this simply amazing puzzle that can be re-arranged to display different cross-sections of the brain. Via Infostetics.

Neuroscience + Woodwork = Awesomeness

In this short post I look at some illustrations produced by the Weimar era popular science writer and illustrator Fritz Kahn. Theses illustrations are interesting because they break with Kahn’s more popular man-as-machine metaphor (which I have explored in The Body Machines of Fritz Kahn) by depicting the body as a fantastic landscape. Produced early in Kahn’s career to me these illustrations present a more traditional and romantic view of the body than Kahn’s later work.

This first image is illustrates the glands of the skin as chimneys on the hand:

Chimneys of the Skin

The next image depicts the inside of blood vessels and could be considered a bit of a stretch as a body-landscape. However, I have seen exactly the same illustration in another Kahn publication with the sole addition of small fairy-people riding on-top of the blood cells through the vein. Unfortunately I seem to have lost the image at some point in my move from Toronto.

The Vein as a Tunnel

A bit more of a stretch is this illustration labeled “how the dessert cleans the tongue” where the tongue is a landscape being worked on by little figures who represent various foods and drinks. The reason this is a stretch is that the meme of little people working (and carrying out tasks) inside the body is very common in Kahn’s illustrations, including his body-machine images.  This image is part of a series of fascinating illustrations dealing with eating habits and I will definitely do a full post on in this topic in the future.

How the Dessert Cleans the Tongue

Next is an illustration meant to show the spead of the neural impulse compared to the speed of contemporary air travel and wireless communication. Interesting here is the choice of North and South America as the comparitive landscape, probably related to Kahn’s move to the United States following being smuggled out of Nazi Germany just before the outbreak of World War Two.

The Speed of the Neural Impluse

This last illustration is my favorite of the series and the image that prompted this quick post. This illustration is of a landscape drawn from the perspective of a person inside the nose looking out.

Through the Proboscis Darkly

Related Posts:

• The Body Machines of Fritz Kahn
• The Cycles of Virtue and Substance: Fritz Kahn and the Chemical Cycles of Man and Machine
• Illustrating the Incomprehendable

Google announced this week that they are partnering with Life Magazine to digitize the entire back catalog of Life’s images and are making them available through Google’s Image search platform. While looking through the archive I found a number of eclectic images from the history of psychology and decided to post some of the more interesting ones here. To be clear, I am not trying to tell a coherent history with this post; rather, I just selected the most iconic images I found that still illustrated some of the prominent trends in psychological research throughout the 20th century.

This first image depicts the Yale’s child psychology lab of Dr. Arnold Gesell in 1947 and is possibly my favorite for its surreal, B-movie, science fiction quality:

Child Psychology lab at Yale

According to Wikipedia:

Gesell made use of the latest technology in his research. He used the newest in video and photography advancements. He also made use of one-way mirrors when observing children, even inventing the Gesell dome, a one-way mirror shaped as a dome, under which children could be observed without being disturbed.

Here is a “The March of Time” video hosted on Google Video of a Gisell Dome in action.

Children have played an important role in the history of psychology and have an equally if not disproportionate place in Life’s images of psychology. In this picture a child navigates a glass obstacle in a box at Columbia University in 1940:

Child Navigating Glass Obstacles

Continuing the baby theme, this image from 1947 is described as showing “Baby John Gray Jr. happily playing in his Skinner box… [a] new-style crib which eliminates germs, drafts & constricting clothing because of temperature controls & slid-down glass.” Looks like a happy little tike to me:

Update: According to Dr. Christopher Green (of the wonderful and informative blog Advances in the History of Psychology) the “baby box” was not really a “Skinner box” (I had wondered about this) as it was not set up for conditioning. Instead, Skinner called it an “air crib” and it was also jokingly called a “Heir conditioner.”

Boxes for Babies

This image, from 1940, is of “a baby climbing pedestals which he has pushed together to reach the lollipop hanging from the ceiling at Normal Child Development Study at Columbia University.” I would like to see someone try to get this one past an ethics review board now:

A Baby Climbing Pedestals

This image is of Army recruits in Miami Beach, Florida taking aptitude tests in a movie theater in 1942. This is important because of the role of aptitude testing, especially in military and educational settings, to the growth of psychology in the United States in the early 20th century.

Army Recruits

Switching gears slightly as psychological research becomes more biologically oriented, this image from 1953 depicts a young girl whose “brain impulses are measured by an electroencephalograph, readings from electrodes cemented to the head may reveal tumor as cause of headache at the Headache Clinic, Montefiore Hospital.”

Girl with Electrodes

Here is an imaging technique I was not aware of from 1966, a “somersaulting x-ray machine being used to photograph the brain’s ventricles.” Looks kind of dangerous to me:

Somersaulting x-ray Machine

This image of a “patient resting on scales, showing a slight loss of skin moisture” is interesting and I would like to know more about what this research was trying to accomplish. Reminds me of a ancient (and possibly mythical) research technique I’ve heard about that balanced a subject like a teeter totter so carefully that blood flow changes during cognition would cause him to unbalance, kind of like an analogue fMRI.

Patient Resting On Scales

Kind of fancifully, this image labeled “studying mental disorders through laboratory research” from 1949 is a sign of things to come as well as a wonderful example of an almost purposely obtuse piece of scientific apparatus.

Studying mental disorders through laboratory research

Animal research has played a huge role in psychology, but more importantly, this image of a “cat pulling rat’s cart around floor as a relaxation from psychology experiments” is why the internets were invented:

Cat pulling rat's cart around floor

Note:

These images are copyrighted by Life Magazine (well.. so they claim, some of the images in the archive are definitely old enough to be in the public domain). I am assuming, however, that someone warned them that goggle-wearing, hot-air ballon flying bloggers are likely to both post and link to these images once they are in the wild, and that they are OKAY with this, at least for non-profit purposes. Clicking on any of the above images will bring you to Google Image’s page for the specific image.

Here is another illustration from Fritz Kahn’s encyclopediatic series of books “Das Leben des Menschen; eine volkstümliche Anatomie, Biologie, Physiologie und Entwick-lungs-geschichte des Menschen” (The Life of Humans: A Popular Anatomy, Biology, Physiology and a History of the Development of Humans) titled “In 70 Years the Man Eats 1,400 Times its Weight” which purports to show the amount of food the average man eats in 70 years as train cars full of food.

In 70 Years the Man Eats 1,400 Times its Weight

I was reminded of this particular illustration by an image I recently saw on Ptak Science Books (a blog that I can really only describe as a repository of wonderfully eclectic science and technology illustrations) which attempted to show 12,000 employees leaving a tire factor. Ptak uses it to illustrate the number of casualties of the Battle of the Somme (The Department of What Things Look Like: the Casualties of the Somme, Visualized) a task which is as monumental as it is heatbreaking. Here is a small version of the image for the purpose of comparison, but please go see his blog for a full sized image as well as many other wonderful things:

Here is another image from Ptak (A 117×1 Mile Blanket of Planes: What 185,000 Planes Looks Like) which uses a similar visual style to, this time from the London Illustrated News and showing the number of aircraft the United States planned to produce between 1942-194.

Which reminds me of one last illustration in which Kahn uses industrial metaphores to show incomprehensible numbers. Named “The Amazing Pump Within Our Bodies” this illustration uses a tanker trunks and a skyscraper to illustrate the amount of blood the heart pumps during one’s lifetime:

The Amazing Pump Within our Bodies

Unfortunately I’ve lost the source for this image.

Related Posts:

• The Body Machines of Fritz Kahn
• The Cycles of Virtue and Substance: Fritz Kahn and the Chemical Cycles of Man and Machine

In my previous post on the early 20th century science writer and illustrator Fritz Kahn (The Body Machines of Fritz Kahn) I explored how Kahn’s human-machine analogies broke down the barriers between humans and machines. In this post I want to look at some striking illustrations produced by Kahn of chemical cycles and how these images further located industrial machines as part of a single unitary nature.

The Cycle of Carbon Dioxide

This first image “The Cycle of Carbon Dioxide” is a fairly standard illustration showing the carbon-oxygen cycle in its relationship to man and plants. The illustration shows an early example of some of Kahn’s iconic methods, including using lines to depict the rays of the sun shining down and a rather stylized Germanic figure as his representation of man. The illustrations uses color to depict the functional path of the chemicals (an expensive technique at the time) with oxygen shown in blue and both carbon and carbon-dioxide shown in red. The tree has fruit only on the right hand — or carbon — side of the illustration, which is then connected with the man’s stomach, presumably both in terms of input and output.The symbols and colors were apparently a recent innovation of academic chemistry, although I have lost the citation that confirms this fact.

The Circulation of Water

The next image shows the “circulation of water” and is another fairly conventional image in that it does not transgress any traditional human-machine boundaries. On the left is a familiar water cycle — shown in blue — with ’steam’ shown rising from the ’sea’ and raining down on the earth where it runs back into the sea. On the right there are plants and an animal along with a man drinking from a cup.

I am not entirely sure what the barrel beside the man is suppose to represent. Presumably it contains the water, beer or wine that the man is drinking, although there appears to be a dark liquid pouring from the barrel onto the ground and although I doubt it is human or animal waste I have to admit that this was my first thought on seeing the image.

Now things get more interesting as Kahn starts placing machines and heavy industry into his illustrations. The next image is dramatically titled “The Cycle of Virtue and Substance” and prominently places both machines (in the form of a steam engine on the right hand side) and heavily industry (in the from of smokestacks in the background)  with the carbon-oxygen cycles which Kahn has already explored in a more conventional form.

The Cycle of Virtue and Substance

This is definitely my favorite image of the batch. The engine on the right is compared to the man on the left, with a fruit-bearing tree in the center connecting the two. In the background there are massed silhouettes of both human figures and huge industrial buildings and smokestacks. The comparison between the man and the engine is explicit: both consume the carbon and oxygen produced by the tree and both produce carbon dioxide which is then taken up by the tree, as well as fertilizer in the form of the human’s droppings (Kot) and the engine’s ash (Asche).

The title itself, “Der Kreislauf von Kraft und Stoff” (the cycles of virtue and substance) suggests more than just a objective illustration of how machines exchange chemicals in ways analogous to humans and plants or a pedagological method. The suggestion, I think, is the nourishing effects of industrial production on nature.

This image reminds me of another image that I used in my earlier post on Kahn called “Man and Machine” which also placed man and machine on equal functional grounds.

Man and Machine

This last illustration, “The Building of Carbohydrates by Plants” also gives prominent placement to industry in a chemical cycle. Although this illustration is mostly concerned with the formation of different types of plant material, Kahn again includes factories and smokestacks in the background.

The Building of Carbohydrates by Plants

These images (with the exception of “Man and Machine” which is from “Man in Structure and Function”) are from Kahn’s encyclopedian publication “The Life of Humans: A Popular Anatomy, Biology, Physiology and a History of the Development of Humans” (Das Leben des Menschen; eine volkstümliche Anatomie, Biologie, Physiologie und Entwick-lungs-geschichte des Menschen) which was published in Stuttgart 1929 by Kosmos Gesellschaft der Naturfreunde, a “Society of Friends of Nature” which published popular science books and periodicals and is apparently still active in some form today. This massive 5 volume set included more than 1600 pages, 1000 illustrations and almost 50 color prints and sets the iconography for many of Kahn’s later illustrations.

A final note: Those looking closely may notice that some of these images are signed by artists other than Fritz Kahn. At the time it was common for many different artists to work under one main illustrator who produces the entire work. In Kahn’s early work many illustrations bare the marks and signatures while in his later works he placed a “FK” trademark over the original artists signature.

Related Posts:

• The Body Machines of Fritz Kahn

This post is a continuation of my earlier posts (here and here) on using Google Insights to look into Google’s data on searches for Canadian political parties and leaders during this election season. Although I have many qualms about the use of this data and how generalizable it is, I am so far impressed with how well it syncs with the general zeitgeist about the ebb and flow of party popularity (although I havn’t figured out how to quantify that relationship yet — possibly by indexing the data from Google with polling data?). Obviously the population of Canadians using the internet — specifically Google — to search for political parties and leaders is not exactly the same as the voting population, and searches are not in themselves an indication of which party’s candidate someone is going to vote for. I do think it is interesting, however, how the search data correlates with some general shifts during this election, including the bump the green party got during the debate controversy and now the rise of the NDP as a serious contender, or at least a possible Liberal spoiler, in this election.

Today’s data follows the same format and configuration as my other two post:

The Set Up

The Search Terms and Filters are very important when using Google Insight. As I found in my initial post “Searches for Canadian Political Parties and Leaders: Google Insights Data” it was very important to include specific search terms people might use, while excluding search terms which brought in extraneous data. The search terms I constructed were based on ballancing these two concerns. As before, I am including data from all of Canada’s regions and from the past 30 days.

The Interest Over Time graph:

Interest Over Time

A couple things of interest here. One is that the green party post-debate controversy bump has continued, and the total frequency of searches for the green party and their leader have only fallen bellow searches for the Liberal Party and their leader on three days. More interesting, I think, is that since September 17th the NDP and Jack Layton have been in the Canadian political search rave. While this may relate to how connected Canadians and Google user’s skew politically it should be noted that before the 17th the Conservative and Liberal parties were consistently number 1 and 2 in terms of search frequency.

Now the regional interest graph, this time focused on the NDP:

Regional Interest Graph

In general I think Google’s data here seems to reinforce other things I have been heading. The NDP seems strongest, however, in provinces where the Green party does best. I think it would be more interesting to focus on individual provinces like British Columbia and see if Google’s data for is deep enough to actually look into city by city search trends. If it is deep enough to allow such analysis, at least for populated provinces, it could be used to attempt to predict which way ridings might go on election day.

Finally, the same caviets that I wrote in my first post apply here as well.