#92743
01/21/2003 5:27 PM
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Joined: Jan 2003
Posts: 5
stranger
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stranger
Joined: Jan 2003
Posts: 5 |
I am writing a poem, and need to know the authentic scientific phrase to express the optical effect that makes objects seen up close appear to double, as in the little sausage that appears when you hold your index fingers about an inch apart, an inch or so in front of your eyes. I have been using the term 'binocular parallax' because that is what I thought I remembered from Physics, but can no longer find reference to it, and have no confidence that is right. Upon learning the correct phrase, I'll post the poem (it's not long). Thanks.
davy jones
davy jones
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#92744
01/21/2003 5:47 PM
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Joined: Jan 2002
Posts: 1,526
veteran
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veteran
Joined: Jan 2002
Posts: 1,526 |
Total conjecture on my part.
I'm not sure of the term you want. If you have two eye points located in different places (one on each side of a nose, for example), there will be binocular parallax (slight difference in image) to provide depth perception. This binocular parallax might cause the optical illusion you refer to (among others), but I suspect it's not the term for the illusion.
It's probably the same effect that makes an autostereogram work.
When I say "cause" in these cases, I'm talking about proximate cause. The actual illusion in each case is caused by some processing on the disparate images in the brain.
k
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#92746
01/21/2003 6:27 PM
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Joined: Jan 2001
Posts: 13,858
Carpal Tunnel
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Carpal Tunnel
Joined: Jan 2001
Posts: 13,858 |
When a finger is held too close for images to be fused, diplopia results.
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#92747
01/21/2003 6:47 PM
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Joined: Dec 2000
Posts: 2,661
Carpal Tunnel
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Carpal Tunnel
Joined: Dec 2000
Posts: 2,661 |
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#92748
01/21/2003 6:51 PM
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Joined: Jan 2001
Posts: 13,858
Carpal Tunnel
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Carpal Tunnel
Joined: Jan 2001
Posts: 13,858 |
I dunno, musick. It sounds to me like excrement hitting the pot.
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#92749
01/21/2003 6:58 PM
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Joined: Dec 2000
Posts: 2,661
Carpal Tunnel
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Carpal Tunnel
Joined: Dec 2000
Posts: 2,661 |
'Sweet' in the rhythmic sense...
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#92750
01/22/2003 12:33 AM
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Joined: Jun 2001
Posts: 2,636
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 2,636 |
Yeah. The Ps give it a nice syncopation while the vowels move it along.
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#92751
01/23/2003 8:38 PM
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Joined: Feb 2002
Posts: 833
old hand
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old hand
Joined: Feb 2002
Posts: 833 |
The Ps give it a nice syncopation while the vowels move it along.whereas, in Bill's reading of it, the P gives it a nice syncopation while the bowels move it along. 
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#92752
01/24/2003 8:06 AM
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Joined: Mar 2002
Posts: 1,692
Pooh-Bah
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Pooh-Bah
Joined: Mar 2002
Posts: 1,692 |
while the bowels move it along.Oh Gawd!
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#92753
01/24/2003 11:23 AM
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Joined: Jun 2001
Posts: 2,636
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 2,636 |
In Spanish, the b and v sounds are so similar that many people misspell words that include them. [looking out the window, whistling-e]
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#92754
01/24/2003 11:32 AM
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Joined: Mar 2002
Posts: 1,692
Pooh-Bah
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Pooh-Bah
Joined: Mar 2002
Posts: 1,692 |
Umm. Cerveza springs to mind - but then it would wouldn't it.
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#92755
01/24/2003 11:54 AM
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Joined: Dec 2000
Posts: 13,803
Carpal Tunnel
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Carpal Tunnel
Joined: Dec 2000
Posts: 13,803 |
In Spanish, the b and v sounds are so similar
¿Is that a B like in Victor or a B like in Habana?
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#92756
01/24/2003 2:59 PM
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Joined: Aug 2001
Posts: 11,117 Likes: 2
Carpal Tunnel
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Carpal Tunnel
Joined: Aug 2001
Posts: 11,117 Likes: 2 |
In Spanish, the b and v sounds are so similar
¿Is that a B like in Victor or a B like in Habana?
The distinction is sufficiently hard to hear that there a standard phrase - "¿B de Burro, or V de Vaca?" - to help differentiate.
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#92757
01/24/2003 11:31 PM
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Joined: Jan 2003
Posts: 171
member
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member
Joined: Jan 2003
Posts: 171 |
Interesting to note that the Cyrillic letter "B" is pronounced as "v". Must drive them loco in Cuba.
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#92758
01/24/2003 11:48 PM
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Joined: Mar 2000
Posts: 6,511
Carpal Tunnel
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Carpal Tunnel
Joined: Mar 2000
Posts: 6,511 |
In Spanish, the b and v sounds are so similar
The distinction is sufficiently hard to hear that here a standard phrase - "¿B Burro, or V de Vaca?"
Like Faldage said: ¿Is that a B like in Victor or a B like in Habana?
What's Espanish for 'chopped liver'?
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#92759
01/25/2003 7:14 PM
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Joined: Jan 2001
Posts: 1,156
old hand
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old hand
Joined: Jan 2001
Posts: 1,156 |
In Sardinian there does not appear to be a "v" sound, and all occasions of "v" have been replaced with "b". For example, "venti" in Italian means 20, and this is "binti" in Sardinian. And so on.
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#92760
01/25/2003 8:38 PM
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Joined: Jun 2001
Posts: 2,636
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 2,636 |
In reply to:
What's Espanish for 'chopped liver'?
Paté........
Bueno. Hígado picado.
It's not so much that the b and v are interchangeable, the v most often sounds like b, although there are also instances in which the b sounds more like v, ie bacha. Vaca, incidently, is one of the words most likely to be spelled "baca".
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#92761
01/25/2003 8:56 PM
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Joined: Mar 2000
Posts: 6,511
Carpal Tunnel
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Carpal Tunnel
Joined: Mar 2000
Posts: 6,511 |
In fact, that sound is my favorite phoneme, just for its name: 'bilabial fricative.' (...which can be extended, by those who are wont, to describe a Bronx cheer...  )
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#92762
01/25/2003 9:22 PM
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Joined: Jan 2001
Posts: 13,858
Carpal Tunnel
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Carpal Tunnel
Joined: Jan 2001
Posts: 13,858 |
Then there is the gentle bilabial fricative that is a prelude to romance.
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