how to survive 2012 – Yahoo! News

November 19th, 2009 by admin

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Ok so 3 more posts today that I’ve dug up – I’m an information JUNKIE on this stuff lately. Give em a browse and let me know what ya reckon. They’re just from a few different sites I’ve been surfing lately that are generally good for information like this…

Reimagination: Who Will Survive 2012?

Who Will Survive 2012? As a response to the previous post about "The End of the World", I am suggesting that anyone who liked the YouTube documentary check this website out. You may have seen the trailer for it. …

Don’t believe the 2012 Hype « 2012workshops.com

… banner straight to “The 2012 Official Countdown” as well as a link to the “Institute for Human Continuity” which I just learned about but appears to be a parallel marketing campaign to promote the Sony Pictures film “Survive 2012″. …

How To Survive Polar Shift at Dec 2012 safe zones of our planet …

Most of Canada fares rather well during or after the coming pole shift, and depending upon its altitude will fare better after the pole shift than before, due.

Hope you enjoy the read as much as I did and please if you have something to say, use the comments form below to let everyone know your thoughts.

Have a great day!

Biology Experiments For Teachers. Binocular Vision, Eye Dominance, And Location Of Stimuli

Binocular Vision: Experiment

(a) Keep both eyes open and hold a pen or pencil upright at arm’s length.

(b) Quickly move the pencil to come exactly in line with a more distant vertical object, such as a window frame or lamp-post.

(d) Close and open the right eye.

(e) Note any change in the apparent position of the pencil and whether it was the closure of the left or right eye which produced it.

(f) Which eye did you use in lining up the two objects?

Discussion

Although both eyes are kept open to line up the pencil and the distant object, only one eye, the dominant eye, is used to determine the alignment. When this eye is closed, the pencil will appear to ‘jump’ sideways. It is closure of the dominant eye which produces the jump because, according to the eye now remaining open, the pencil and distant object are not in line. If the student is slow to line up the two objects he or she may be aware of a double image of the near object. Nevertheless, the student is still likely to select the image from the dominant eye.

Awarness of Location of Stimuli. Experiment

(a) Place a glass marble on a non-slippery surface, e.g. on the page of an open notebook.

(b) Cross the first and second fingers of one hand and press on the marble with the tips of these fingers.

(c) Close your eyes and roll the marble firmly, forwards and backwards, side to side and then with a circular motion for about 30 seconds.

(d) Notice any unusual impressions you receive from the fingers.

Discussion

1 The subjective impression should be as if there were two marbles with the fingers pressing
between the two.

2 The areas of the finger-tips employed, with the fingers not crossed, would normally be stimulated only by two surfaces separated in space.. The connections that exist between the receptors and the brain are, presumably, the foundation for this interpretation. When the two areas are stimulated simultaneously by the same object in the absence of visual evidence, the brain makes its usual i
1000
nterpretation, giving the sensation of two objects.

The results also show that we normally rely on information from several sources for our
interpretations. If the subject watches the fingers and marble, it is far more difficult to elicit the impression of two objects.

By: D G Mackean

Article Directory: http://www.articledashboard.com

D G Mackean is the author of GCSE Biology, IGCSE Biology, and many other Biology text books. He has a site of Biology Teaching Resources at www.biology-resources.com which includes a bank of experiments for teachers, sample PowerPoint presentations, and many biological drawings

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