Discussion in 'General Science & Technology' started by sharetolearn, May 4, 2009.
pffft. Please Register or Log in to view the hidden image! nope, I call bullshit.
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I thought speaking required air to be forced through the mouth - how would a head do that?
Well perhaps you should learn anatomy first, Mr. know-it-all.
Because he mentioned larynx which are set of muscles that allow differential in pressure to be created thus allowing air to be forced to mouth to speak. Not much pressure and not for long since lungs are supposed to do that (but are no longer there)...but neverthless is capable of contracting and expanding.
That would be why I asked, wouldn't it?
Hmm a differential in pressure: from what?
If there are no lungs to push air then the larynx can't create any differential. :shrug:
Around 6% of all the people that have ever lived on earth are alive today (article from 2002 though) according to a semi-scientific approach (since there is no purely scientific approach as we don't know more than the average number of people alive at certain periods and we can only estimate the birthrate):
Number of people who has ever lived: ~106,456,367,669 people
Number of people who are alive today (2002): 6,215,000,000 people
neverthless larynx muscles can contract and expand a small amount of time which would allow some air to be forced to the mouth.
It is all academic since the brain is not functional due to the huge neural shock* but why would the air not be forced out of the cut throat instead of the mouth? Not that I believe any pressure differential could be achieved with a cut throat (esophagus, to be more technically correct) Note it never closes.** The trachea*** can be closed off from the esophagus when swallowing or with a reduced lumen when coughing.
*Read post 78 (and 81 for a brief but apt discription of your and Xylene's posts.)
** Except at the end where it enters the stomach, it can close. Perhaps if the head were lopped off below the stomach a pressure differential could occur.
***Commonly called the "wind pipe" is a parallel tube in front of the throat that connects with the throat (when not closed off from the always open throat by a flap of tissue) at about C5 or 6 as I recall.
You don't know Jack !
Sure I do - he cuts grass and plants trees etc for a living. But you know Mary, in the bibical sense? Please Register or Log in to view the hidden image!
Damn, you do know Jack !
Well, I must admit I was quoting from an old story about the execution by the Normans of Earl Walthoft of Northumbria--he was supposed to have been saying the Lord's Prayer at the time the swordsman was standing above him. The story goes that he finished the prayer after his head had been struck off and was lying on the floor. A bit dubious, to put it mildly, and I should have pointed out that it was based on hearsay from the 11th Century--hardly a reccomended source.
It's been said that a very thin, sharp blade, expertly wielded, should be able to separate the head without causing a lot of pain. I just don't know how anyone's going to interview the victim to get his opinion.
Modern technology has made decapitation obsolete both in war and as a means of execution so there's not a lot of recent anecdotal evidence about the topic.
My parents raised chickens and I observed this after an expertly performed execution. It's a different phenomenon. Birds have a reflex center in their shoulders that flaps their wings when in danger; it's a survival trait. The chickens aren't running, they're trying to fly, and they can get just enough lift to drag their body along the ground.
This is why all pet birds should have their flight feathers clipped. When they're startled their body will start to fly without any conscious control and they won't be able to find their way home. We've lost two parrots that way.
It takes more than a larynx to create speech: it requires air flow. No lungs, no air flow.
There's the old story about the confrontation between the Gurkha and the Japanese soldier during WW2; the Gurkha slashed the soldier with his kukri, and the Japanese guy laughed and said 'you missed!' The Gurkha said, 'you reckon? Don't shake your head..'Please Register or Log in to view the hidden image!
I accept they have this reflex center; (You know a lot about birds and are seldom wrong.), however, I do not see why they could not get air-born if that is what they are trying to do - certainly they weigh less without the head. Please Register or Log in to view the hidden image!
Thus, I think the brain stem at least is required for "flight control," however, I can support your statement that when startled, birds immediately begin to fly. Mine does, but he is not lost or without a “flight plan” inside the house. His is a good flyer as his wings are not clipped, but all the horizontal-sliding, double windows, are constrained to remain open for ventilation but only about 1.3 cm at each edge. He usually* comes when I call him and if I do not know where he is, I just say his name and he will ALWAYS give a chirp reply to tell me where he is. He too likes to know where I am at all times and I answer his calls. He is most secure in his cage or near me or at least in sight of me.
*He has a strong will of his own and may refuse to come to my shoulder** when called. At times he may be holding a grudge against me. If I then go to take him he will walk away or turn his back to me if in his cage. (It remains open except at night as his food and water are there.) Sometimes, typically when he is setting on the window ledge looking out to the garden 14 floors below, if I call several times for him to come in increasingly demanding tones, just to show me who is boss he will appear to be coming initially but actually just make a tight turn around my head and return to his window ledge perch! Non-verbally telling me to "get lost" or "leave me alone." He has several non-verbal behaviors with definite meanings I know and about 5 distinct chirps / calls with clear meanings but one ambiguously means either "Thank you" or "That was nice."
** He spends several hours each day there - sometimes sleeping - but his sleep is never deep, even at night.
David Beckham loves wearing panties .
If the Sahara desert was the amount of knowledge in the world your share of it would be contained in an atom of a half grain of sand.
While the USA leads all other countries in per capita health care expenditures, 44 other countries, most with some form of public payments for health services,* or socialized medical service, have higher life expectancies than the US does.
See these 44 here:
(This Wiki data copied from the CIA study - not biased by posters)
*I.e. prevention saves money: If your cost is zero or low**, you go to doctor sooner, not later when treatment is 10 to 20 times more expensive and less likely to save your life, if a serious illness has been festering for years untreated. Because of current economic problems, many are reducing their needed medications to save money. As a result, US life expectancies are probably decreasing now.
What a shame on the richest country in the world!
**I was five days in Brazilian hospital after prostate operation in 2008 and my total bill was ZERO! - FULLY FREE - as were the annual PSA tests that told when a free biopsy was needed. In the US many do not adequately monitor, get treatment AFTER it metastases, and cost the their insurance company, if they have one, tens of thousands of dollars annually for hormone therapy and still die from the disease a few years later.
Again I ask (as my old thread does): How dumb can American voters be?
Great thread title, and thanks for 'sharing'
New thinking, offers the quest of new thoughts.
try a few on the esoteric side:
energy: em between mass
Life: abuses entropy
The priniciple that unveils the paradigm shift to the sciences is to observe electromagnetic energy (light/em) as the energy between all mass.
Mass, energy and time; combine into a mathematical frame which can be mirrored within theologies as the 'trinity.' In which to perform the transition in theorem the combining does have validity. This frame written in script can be considered as the "name" of you know who. (the math describing the process; the name of God)
(God: all mass all energy all time; existence itself, basically this universe, we live within is the boss/nature/God (if that is the word you like))
The math simply describes the process of how it works; the name; the last word to all arguments.
All words are the creations of mankind.
In a sense, we are mass/life within existence, describing itself.
Separate names with a comma.