A-Z of AVIONICS

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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #750 on: 25/06/2007 10:13:26 »
SPREADING CENTER =
A SITE WHERE OCEANIC CRUST IS BEING FORMED!

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Re: A-Z of AVIONICS
« Reply #751 on: 28/06/2007 23:19:20 »
TOPOLOGY = Branch of mathematics that is concerned with surface properties that do not change under distortion.

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Re: A-Z of AVIONICS
« Reply #752 on: 12/07/2007 22:45:07 »
Uncostate = having only one main rib: said of a leaf.

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Re: A-Z of AVIONICS
« Reply #753 on: 18/07/2007 22:01:27 »
Vein



Cross section of a vein showing a valve which prevents backflow

In the circulatory system, a vein is a blood vessel that carries blood toward the heart. The majority of veins in the body carry low-oxygen blood from the tissues back to the heart; the exceptions being the pulmonary and umbilical veins which both carry oxygenated blood.
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Re: A-Z of AVIONICS
« Reply #754 on: 18/07/2007 22:13:09 »
White dwarf = any of a class of small, extremely dense stars of low luminosity, often no larger then the earth but weighing as much as the sun.

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Re: A-Z of AVIONICS
« Reply #755 on: 18/07/2007 22:32:09 »
Zebu, common name for several breeds of domesticated humped cattle native to southern Asia. A large, muscular hump on the back above the shoulders is its most conspicuous characteristic. Most zebus have short horns, pendulous ears, and huge dewlaps. The animals are used extensively in Africa and Asia as beasts of burden, and for their milk and flesh. White bulls are regarded as sacred by certain sects of Hindus; hence the entire species is known in some parts of the world as Brahman cattle.

Because the zebu is highly resistant to heat and tropical diseases, it has been introduced into the United States and South America for cross-breeding with native cattle to develop strains with similar qualities.



A Zebu doing what Zebus do best..............being a Zebu !!
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Re: A-Z of AVIONICS
« Reply #756 on: 18/07/2007 22:33:39 »
ooops...i missed out 'X' and ' Y '............oh well..I'm forgiven..I'm out of practice !!  [;D]
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Re: A-Z of AVIONICS
« Reply #757 on: 18/07/2007 22:43:19 »
Yes you Are Forgiven.. Definitely out of Practice! LOL

Lets start over!

ARTERIAL SCLEROSIS:

arteriosclerosis, arterial sclerosis, hardening of the arteries, induration of the arteries, coronary-artery disease

sclerosis of the arterial walls






« Last Edit: 18/07/2007 22:55:01 by Karen W. »

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Re: A-Z of AVIONICS
« Reply #758 on: 18/07/2007 23:31:24 »
Brain


In animals, the brain or encephalon (Greek for "in the head"), is the control center of the central nervous system, responsible for behaviour. In most animals, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, equilibrioception (balance), sense of acceleration, taste, and olfaction. While all vertebrates have a brain, most invertebrates have either a centralized brain or collections of individual ganglia. Primitive animals such as sponges do not have a brain at all. Brains can be extremely complex. For example, the human brain contains more than 100 billion neurons, each linked to as many as 10,000 other neurons.


Animation showing the human brain with the lobes highlighte
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Re: A-Z of AVIONICS
« Reply #759 on: 19/07/2007 02:29:52 »
Cerebral Cortex

From Wikipedia, the free encyclopedia


The cerebral cortex is a structure within the vertebrate brain with distinct structural and functional properties. In non-living, preserved brains, the outermost layers of the cerebrum has a grey color, hence the name "grey matter". Grey matter is formed by neurons and their unmyelinated fibers while the white matter below the grey matter of the cortex is formed predominantly by myelinated axons interconnecting different regions of the central nervous system. The human cerebral cortex is 2-4 mm (0.08-0.16 inches) thick and plays a central role in many complex brain functions including memory, attention, perceptual awareness, "thinking", language and consciousness.

The surface of the cerebral cortex is folded in large mammals where more than two thirds of the cortical surface is buried in the grooves, called "sulci". The phylogenetically more ancient part of the cerebral cortex, the hippocampus, is differentiated in five layers of neurons, while the more recent neo-cortex is differentiated in six basic layers. Relative variations in thickness or cell type (among other parameters) allows us to distinguish among different neocortical architectonic fields. The geometry of these fields seems to be related to the anatomy of the cortical folds and, for example, layers in the upper part of the cortical grooves (called gyri) are more clearly differentiated than in its deeper parts (called sulcal "fundi").



      Location of the cerebral cortex




        Slice of the cerebral cortex, ca. 10.5mm wide




    Golgi-stained neurons in the somatosensory cortex of the macaque monkey.
« Last Edit: 19/07/2007 02:33:21 by Karen W. »

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Re: A-Z of AVIONICS
« Reply #760 on: 19/07/2007 03:36:26 »
Da Vinci (T-Shirt)

As I have never enjoyed the luxury of a naked Scientist T Shirt I managed to procure this Da Vinci T Shirt (as worn by yours truly) in Florence !

I have been there recently...did I mention it ?

Notice how Da Vinci copied the TNS Logo !!


[attachment=466]
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Re: A-Z of AVIONICS
« Reply #761 on: 19/07/2007 03:52:48 »


Yes That is a very cool Shirt! I hope you had loads of fun!
HEY WE POSTED AT THE SAME TIME WHEN YOU CHANGED YOUR PICTURE AND THE SITE SUCKED MY POST AWAY!!! NO FAIR!! CRIMANY!! IT WAS DONE AND BOOM!  LOL ARRRRRG!

Evolution..



concept that embodies the belief that existing animals and plants developed by a process of gradual, continuous change from previously existing forms. This theory, also known as descent with modification, constitutes organic evolution. Inorganic evolution, on the other hand, is concerned with the development of the physical universe from unorganized matter. Organic evolution, as opposed to belief in the special creation of each individual species as an immutable form, conceives of life as having had its beginnings in a simple primordial protoplasmic mass (probably originating in the sea) from which, through the long eras of time, arose all subsequent living forms.




« Last Edit: 19/07/2007 03:56:16 by Karen W. »

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Offline Mjhavok

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Re: A-Z of AVIONICS
« Reply #762 on: 19/07/2007 04:18:42 »
Faraday, Michael
Feinberg, Gerald
Fermi, Enrico
Feynman digrams
Field Theory
Freund, Peter
Steven
_______________________________________________________________
In a time of universal deceit - telling the truth is a revolutionary act.

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Re: A-Z of AVIONICS
« Reply #763 on: 19/07/2007 08:05:56 »
Galvanism = Electricity produced by a chemical action. 2. A direct electrical current used to stimulate nerves and muscles.

You will find more through wiki
http://en.wikipedia.org/wiki/Galvanism
« Last Edit: 19/07/2007 08:20:12 by Karen W. »

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Re: A-Z of AVIONICS
« Reply #764 on: 19/07/2007 10:51:48 »
Habit, an act acquired by experience and performed regularly and automatically. Habits include mannerisms, such as moving the hands when talking; satisfying psychological cravings such as smoking or overeating; and even characteristic reading preferences, such as a regular diet of horror novels or Shakespearean tragedies. Psychologists are interested in habits because of their function as a basic element of learning and as problems to be treated when they prove disruptive to a person's well-being.

Psychoanalysts consider habits as expressions of erotic and aggressive impulses. Repressed, these impulses find an outlet through the counter-productive, repetitive behaviour that comprises habits. In contrast, American psychologist and learning theorist Clark Hull defined habit with great precision in terms of the laws of conditioning and reinforcement. A majority of contemporary psychologists view habits as learned or conditioned behaviour over which one has little voluntary control. Some theorists even consider more complex but commonly practised human activities, such as playing football or speaking French, as composed of “habit hierarchies”.

Habits may begin as reactions to a major event, such as a bodily injury, and then continue on other occasions that reproduce certain cues or stimuli from the original event. A habit is influenced not only by elements that produce the behaviour but also by rewards or punishments that follow it. An action that is lavishly rewarded as soon as it is performed is well on its way to becoming a habit. Once a habit is firmly entrenched, it can be sustained by cues different from those that originally created it, and it need not be rewarded so regularly or well. Indeed, the habit may become its own reward.

Psychologists can effectively assist people in breaking such habits as hair and eyebrow pulling, fingernail biting, shoulder jerking, scratching, overeating, smoking, drinking, and exhibitionism. With children, self-destructive habits such as head banging can be eliminated by behaviour modification or counterconditioning techniques. These involve increasing one's awareness of the act, interrupting its performance so that it no longer seems such a natural thing to do, and reinforcing another act as a competitor. Recognizing the social benefits of breaking an undesirable habit makes doing so easier. In the serious mental defect known as obsessive-compulsive disorder, people feel compelled to repeat actions such as washing hands or switching off lights and appliances.
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Re: A-Z of AVIONICS
« Reply #765 on: 19/07/2007 11:53:31 »


Invar

From Wikipedia, the free encyclopedia

Invar variation due Ni percentage

Invar, also called FeNi, is an alloy of iron (64%) and nickel (36%) with some carbon and chromium. This alloy is known for its unique properties of controlled coefficient of thermal expansion (CTE). It was invented in 1896 by a Swiss Charles Edouard Guillaume, who later received the Nobel Prize in Physics in 1920.

Due to its low coefficient of thermal expansion at room temperature (about 10-6 K-1 in length; some formulations have negative thermal expansion, NTE) it is used in precision instruments (clocks, physics laboratory devices, seismic creep gauges, shadow-mask frames,[1] valves in motors, antimagnetic watches, etc.) However, it has a propensity to creep.

Although Invar is today a widely used material in many industries and applications, this is a particular trademark of a French company named Imphy Alloys: this company originates from Aciéries d’Imphy (a small city near Nevers, France) where the alloy was initially industrialised after its invention. The generic reference for Invar® is FeNi36.

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Re: A-Z of AVIONICS
« Reply #766 on: 21/07/2007 18:04:29 »
 Jabir (c. 721-c. 815), Arabian alchemist.

 Born Abu Musa Jabir ibn Hayyan, he is supposed to have lived in Al Kūfah and Baghdad (both now in Iraq). More than 500 treatises have been ascribed to him. Contemporary scholars, however, believe that most of these works date from the 9th to the 12th century. In addition, several works printed in Latin and ascribed to Geber, which is the Latin transcription of his Arabic name, probably date from the 14th century. These works give detailed descriptions of chemical processes, including experiments on the properties of metals. They develop the theory—of great importance to medieval and Renaissance scholars—that all metals are composed of mercury and sulphur and that it is possible to transmute base metals into gold.

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Re: A-Z of AVIONICS
« Reply #767 on: 21/07/2007 18:12:49 »
Kraner did his Science Fair..Just Messing..

Kashiwazaki-Kariwa Nuclear Power Plant

The Kashiwazaki-Kariwa Nuclear Power Plant (柏崎刈羽原子力発電所, Kashiwazaki-Kariwa genshiryoku-hatsudensho?, Kashiwazaki-Kariwa NPP) is a relatively modern nuclear power plant located in the towns of Kashiwazaki and Kariwa in the Niigata Prefecture, Japan (coordinates: 37° 25' 35" N, 138° 35' 40" E). It is owned and operated by The Tokyo Electric Power Company, which is the 3rd largest electric utility in the world.

By net electrical power rating, it is the largest nuclear plant in the world, with a total output of 8,212 MW. This is sufficient to provide electricity to about 16 million households. Since there are some 47 million households reported by the Japanese census (see Demography of Japan), this makes the Kashiwazaki-Kariwa NPP an extremely important cornerstone in the electricity market of Japan.

Furthermore, this gives the KK NPP the title of the 4th largest electric generating station in the world, behind 3 hydroelectric plants:

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Re: A-Z of AVIONICS
« Reply #768 on: 21/07/2007 19:11:38 »
Loach, common name for any of about 200 species of freshwater elongated fishes of the carp order. Usually found at the bottom of streams and lakes, loaches occur in southern and Central Asia; several species are found in Europe, north-eastern Africa, and Ethiopia. Loaches reach a maximum length of about 30 cm (12 in). Their bodies have few, if any, scales. Three to six pairs of barbels (“whiskers”) are clustered about the mouth. The stone loach is a common European species used as food. The spined loach is found from Europe to Japan and has a collapsible spine between and slightly below its eyes. Two related Asian families are known as suckerbelly loaches and hillstream loaches.

Scientific classification: Loaches make up the family Cobitididae of the order Cypriniformes. The stone loach is classified as Noemacheilus barbatulus and the spined loach as Cobitis taenia.


Some Loaches chillin !!
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Re: A-Z of AVIONICS
« Reply #769 on: 21/07/2007 20:48:51 »
Mr. J, our Science Teacher that taught be lots!

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Re: A-Z of AVIONICS
« Reply #770 on: 23/07/2007 12:36:39 »
Nucleic Acid =


From Wikipedia, the free encyclopedia

To read more extensively see:

http://en.wikipedia.org/wiki/Nucleic_acid



A nucleic acid is a complex, high-molecular-weight biochemical macromolecule composed of nucleotide chains that convey genetic information. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are found in all living cells and viruses.

Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally occurring DNA or RNA by changes to the backbone of the molecule.

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Re: A-Z of AVIONICS
« Reply #771 on: 23/07/2007 22:28:24 »
Oak Bark

The bark of many species of oak, including that of the common oak, provide tannin, which is used for curing leather and for making blue-black ink.




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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #772 on: 23/07/2007 22:41:40 »
( Really, I did not know that about an oak! Cool )


Pirite (synonym of  Pyrite)=

Ambasaguas (Ambas Aguas; Ambas-Aguas), Muro de Aguas, La Rioja, Spain
© 2002 John H. Betts
Show Pyrite Photos (1279)
Formula:   
FeS   
 
2
   
System:   Isometric   Colour:   Pale brass-yellow
Hardness:   6 - 6½
Name:   Named in antiquity from the Greek "pyros" for "fire" because sparks flew from it when hit with another mineral or a metal.


Pyrite Group

Pyrite is a very common mineral, found in a wide variety of geological formations from sedimentary deposits to hydrothermal veins and as a constituent of metamorphic rocks. The brassy-yellow metallic colour of Pyrite has in many cases lead to people mistaking it for Gold, hence the common nickname 'Fools Gold'. Pyrite is quite easy to distinguish from Gold, it is much lighter, but harder and cannot be scratched with a fingernail or pocket knife.






« Last Edit: 25/07/2007 00:25:47 by Karen W. »

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Re: A-Z of AVIONICS
« Reply #773 on: 30/07/2007 03:10:26 »
Quails.

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Re: A-Z of AVIONICS
« Reply #774 on: 30/07/2007 03:28:55 »
Rigel

.............. is the brightest star in the constellation Orion and the seventh brightest star in the sky, with visual magnitude 0.12. Although it has the Bayer designation "beta", it is almost always brighter than Alpha Orionis (Betelgeuse). It also has the alternative traditional names Algebar or Elgebar, but these are almost never used.

The star's name comes from its location at the "left foot" of Orion. It is a contraction of Riǧl Ǧawza al-Yusra, this being Arabic for "Left Foot of the Central One". Another Arabic name is الرجل الجبار ar-riǧl al-ǧabbār, "the foot of the great one" (giant, conqueror, etc.), which is also the source of the variant name Algebar.

It is known as 参宿七 (Shēnxiù Qī, "The Seventh of the Three Stars") in Chinese. The mathematically questionable name is due to the fact that the Asterism of Three Stars was originally composed of just three stars, all of them in the girdle of the Orion. Later, four more stars were added to this asterism, but the name remained unchanged.
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Re: A-Z of AVIONICS
« Reply #775 on: 30/07/2007 13:17:57 »
Sagitta

Abbreviation:
    Sge
English name:
    Arrow
Coordinates
    see Stellar data

Particulars:

    * Double star zeta Sge
    * Recurrent Nova WZ Sge
    * Globular cluster M 71

General:

A very small constellation lying south of the Fox, Vulpecula, and north of the Eagle, Aquila. As a matter of fact Sagitta is the third smallest constellation in the sky. It shows clearly the shape of an arrow flying towards the Swan, Cygnus.

Stars and other objects

The A3 main sequence star zeta Sge (5.00 mag) has a 9th mag companion. Small telescopes can resolve this pair.
WZ Sge is a nova which lightens up from time to time from 15th mag to 7th mag. It has been observed twice in this century: in 1913 and in 1946. Further outbursts may occur at any time.
In binoculares and small telescopes the globular cluster M71 appears as a misty patch of a sperical shape. Although it is nowadays classified as a globular cluster some authorities still refer to it as open star cluster. See the Messier database for details.

Mythological Background:

Sagitta is thought to be the arrow shot by Hercules as he is hunting the two birds, Aquila and Cygnus. But it seems that the had luck and escaped.


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Re: A-Z of AVIONICS
« Reply #776 on: 30/07/2007 15:27:21 »
Tyrannosaurus Rex! Everyone knows that's the worlds most known dinosaur!

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Re: A-Z of AVIONICS
« Reply #777 on: 30/07/2007 16:36:25 »
Unicode


.............is an industry standard allowing computers to consistently represent and manipulate text expressed in any of the world's writing systems. Developed in tandem with the Universal Character Set standard and published in book form as The Unicode Standard, Unicode consists of a repertoire of about 100,000 characters, a set of code charts for visual reference, an encoding methodology and set of standard character encodings, an enumeration of character properties such as upper and lower case, a set of reference data computer files, and rules for normalization, decomposition, collation and rendering.[1]
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Re: A-Z of AVIONICS
« Reply #778 on: 30/07/2007 17:00:51 »
Vortex



From Wikipedia, the free encyclopedia
Jump to: navigation, search
For other uses, see Vortex (disambiguation).
Vortex created by the passage of an aircraft wing, revealed by coloured smoke
Vortex created by the passage of an aircraft wing, revealed by coloured smoke

A vortex (pl. vortices) is a spinning, often turbulent, flow (or any spiral motion) with closed streamlines. The shape of media or mass swirling rapidly around a center forms a vortex. It flows in a circular motion.
Contents
[hide]

    * 1 Dynamics
    * 2 Two types of vortex
          o 2.1 Free (irrotational) vortex
          o 2.2 Forced (rotational) vortex
    * 3 Observations
          o 3.1 Instances
    * 4 See also
    * 5 References and further reading
    * 6 External links

[edit] Dynamics

A vortex can be any circular or rotary flow that possesses vorticity. Vorticity is a mathematical concept used in fluid dynamics. It can be related to the amount of "circulation" or "rotation" in a fluid. In fluid dynamics, vorticity is the circulation per unit area at a point in the flow field. It is a vector quantity, whose direction is (roughly speaking) along the axis of the swirl. Also in fluid dynamics, the movement of a fluid can be said to be vortical if the fluid moves around in a circle, or in a helix, or if it tends to spin around some axis. Such motion can also be called solenoidal. In the atmospheric sciences, vorticity is a property that characterizes large-scale rotation of air masses. Since the atmospheric circulation is nearly horizontal, the (3 dimensional) vorticity is nearly vertical, and it is common to use the vertical component as a scalar vorticity.

Mathematically, it is defined as,

        \vec \omega = \nabla \times \vec \mathit{u}

where \vec \mathit{u} is the fluid velocity.

The properties of vorticity in 2 and 3 dimensions are treated in some depth in George Batchelor's famous textbook (ch 5 & ch 7 et seq.). Of particular importance in practical situations is the intensification of vorticity which takes place in three dimensions when a vortex-line is extended (p270 et seq).

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Re: A-Z of AVIONICS
« Reply #779 on: 01/08/2007 21:37:43 »
Watermelon!

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Re: A-Z of AVIONICS
« Reply #780 on: 12/08/2007 18:59:23 »
XANTHIUM (Cocklebur)


The Cockleburs (Xanthium) are a genus of flowering plants in the family Asteraceae, native to the Americas and eastern Asia.

They are coarse, herbaceous annual plants growing to 50-120 cm tall. The leaves are spirally arranged, with a deeply toothed margin. Some species, notably X. spinosum, are also very thorny with long, slender spines at the leaf bases.

The flowers are of two types; One, in short terminal branches, produces only pollen. The other, in clusters in the axils of the leaves, produces seed.

Unlike many other members of the family Asteraceae, whose seeds are airborne with a plume of silky hairs resembling miniature parachutes, cocklebur seeds are produced in a hard, spiny, globose or oval double-chambered, single-seeded bur 8-20 mm long. It is covered with stiff, hooked spines, which sticks to fur and clothing and can be quite difficult to extract. These remarkable burred seeds have allowed this plant to be carried all over the world by unsuspecting travelers. This plant reproduces only by means of its seed.

Cockleburs are short-day plants, meaning they only initiate flowering when the days are getting shorter in the late summer and fall, typically from July to October in the northern hemisphere. They can also flower in the tropics where the daylength is constant.

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Re: A-Z of AVIONICS
« Reply #781 on: 12/08/2007 19:22:21 »
Yodeling

http://en.wikipedia.org/wiki/Yodeling

Yodeling (or yodelling, jodeling) is a form of singing that involves singing an extended note which rapidly and repeatedly changes in pitch from the vocal chest register (or "chest voice") to the head register (or "head voice"), making a high-low-high-low sound. This vocal technique is used in many cultures throughout the world.

In Swiss folk music, it was probably developed in the Swiss and Austrian Alps as a method of communication between mountain peaks, and it later became a part of the traditional music of the region. In Persian and Azeri classical music, singers frequently use tahrir, a yodeling technique that oscillates on neighbor tones. In Georgian traditional music, yodelling takes the form of krimanchuli technique. In Central Africa, Pygmy singers use yodels within their elaborate polyphonic singing. Yodeling is often used in American bluegrass and country music.

Technique

All human voices are considered to have at least two distinct vocal registers, called the "head" and "chest" voices, which result from different ways that the tone is produced. Most people can sing tones within a certain range of relatively lower pitch in their chest voices, and then a certain range of relatively higher pitch in their head voices. There is often a gap between these ranges, especially in inexperienced or untrained singers. Experienced singers, who can control their voices to the point where these ranges overlap, can easily switch between them to produce high-quality tones in either. Yodelling is a particular application of this technique, wherein a singer might switch between these registers several times in but a few seconds, at a high volume. Going back and forth over this "voice break" repeatedly produces a very distinctive type of sound.

For example, in the famous example syllable "Yodl - Ay - EEE - Ooooo", the "EEE" is sung in the head voice, while all other syllables are in the chest voice.

 For examples please see Wiki Links!



"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline iko

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Re: A-Z of AVIONICS
« Reply #782 on: 15/08/2007 12:10:30 »
Zulu

...Last 'word' in our International Radio Operator Alphabet!

http://www.thenakedscientists.com/forum/index.php?topic=5250.msg48296




Alpha
Bravo
Charlie
Delta
Echo
Fox
Golf
Hotel
India
Juliet
Kilo
Lima
Mike
November
Oscar
Papa
Quebec
Romeo
Sierra
Tango
Uniform
Victor
Whiskey
X-Ray
Yankee
Zulu

http://www.electronicaviation.com/articles/General/281


Zand zow, zear zrendos zI zink zis zud ze zhe zend zof zit!!!  [;D]
« Last Edit: 15/08/2007 12:31:21 by iko »


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Offline neilep

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Re: A-Z of AVIONICS
« Reply #784 on: 15/08/2007 19:01:02 »
WONDERFUL TO SEE IKO HERE....Friendus Wonderfulus !

Antimony (IPA: 'æntəməʊni) is a chemical element in the periodic table that has the symbol Sb (Latin: stibium, meaning "mark") and atomic number 51. A metalloid, antimony has four allotropic forms. The stable form of antimony is a blue-white metalloid. Yellow and black antimony are unstable non-metals. Antimony is used in flame-proofing, paints, ceramics, enamels, a wide variety of alloys, electronics, and rubber.

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Offline neilep

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Re: A-Z of AVIONICS
« Reply #786 on: 17/08/2007 16:59:55 »
Coldest temperature recorded on Earth

Cold in nature


Antarctica is the coldest place on Earth, with the lowest natural temperature ever recorded on Earth of -89 °C (-129°F) having been recorded there in 1983 at the Russian Vostok Station.
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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #787 on: 18/08/2007 06:16:38 »
  Dreams

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline JimBob

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Re: A-Z of AVIONICS
« Reply #788 on: 19/08/2007 22:14:08 »
Epigallocatechin gallate

An antioxidant found in tea (or chi)
« Last Edit: 19/08/2007 22:53:22 by neilep »
The mind is like a parachute. It works best when open.  -- A. Einstein

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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #789 on: 19/08/2007 22:33:35 »
HUH?

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline neilep

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Re: A-Z of AVIONICS
« Reply #790 on: 19/08/2007 22:56:44 »
Karen..Jimbob somehow had the size of the font set to 1.  I corrected it.


follicle,Hair


A hair follicle is part of the skin that grows hair by packing old cells together. Attached to the follicle is a sebaceous gland, a tiny sebum-producing gland found everywhere except on the palms, lips and soles of the feet. The thicker density of hair, the more sebaceous glands are found.

At the base of the follicle is a large structure that is called the papilla. The papilla is made up mainly of connective tissue and a capillary loop. Cell division in the papilla is either rare or non-existent. Around the papilla is the hair matrix, a collection of epithelial cells often interspersed with melanocytes. Cell division in the hair matrix is responsible for the cells that will form the major structures of the hair fibre and the inner root sheath. The hair matrix epithelium is one of the fastest growing cell populations in the human body, which is why some forms of chemotherapy that kill dividing cells or radiotherapy may lead to temporary hair loss, by their action on this rapidly dividing cell population. The papilla is usually ovoid or pear shaped with the matrix wrapped completely around it except for a short stalk-like connection to the surrounding connective tissue that provides access for the capillary.

Also attached to the follicle is a tiny bundle of muscle fiber called the arrector pili that is responsible for causing the follicle and hair to become more perpendicular to the surface of the skin, and causing the follicle to protrude slightly above the surrounding skin. This process results in goose bumps (or goose flesh). Stem cells are located at the junction of the arrector and the follicle, and are principally responsible for the ongoing hair production during a process known as the Anagen stage.

The average growth rate of hair follicles on the scalp is .04 cm per day.


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Offline iko

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Re: A-Z of AVIONICS
« Reply #791 on: 20/08/2007 20:14:41 »
Griseofulvin





Griseofulvin (also known as Grisovin) is an antifungal drug. It is used both in animals and in humans, to treat ringworm infections of the skin and nails. It is derived from the mold Penicillium griseofulvum.

It is administered orally.


...more from:  http://en.wikipedia.org/wiki/Griseofulvin
« Last Edit: 20/08/2007 20:17:41 by iko »

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Re: A-Z of AVIONICS
« Reply #792 on: 22/08/2007 19:54:42 »
Hallucination

A hallucination is a sensory perception experienced in the absence of an external stimulus, as distinct from an illusion, which is a misperception of an external stimulus. Hallucinations may occur in any sensory modality—visual, auditory, olfactory, gustatory, tactile, proprioceptive, equilibrioceptive, nociceptive, thermoceptive.
Prevalence and types of hallucinatory experience

Studies have now shown hallucinatory experiences take place across the population world wide. Previous studies, one as early as 1894[1], have reported that approximately 10% of the population experience hallucinations. A recent survey of over 9,000 people[2] reported a much higher figure with almost 39% of people reported hallucinatory experiences, 27% of which reported daytime hallucinations, mostly outside the context of illness or drug use. From this survey, olfactory (smell) and gustatory (taste) hallucinations seem the most common in the general population.

Hypnagogic hallucinations and hypnopompic hallucinations are considered normal phenomena. Hypnagogic hallucinations can occur as one is falling asleep and hypnopompic hallucinations occur when one is waking up.

Auditory hallucinations, particularly of one or more talking voices, are particularly associated with psychotic disorders such as schizophrenia, and hold special significance in diagnosing these conditions, although many people not suffering from diagnosable mental illness may sometimes hear voices as well.[3] The Hearing Voices Movement is a response to the Psychiatric interpretation of auditory hallucination. Other types of auditory hallucinations include musical hallucinations, where people will hear music playing in their mind, usually songs they are familiar with. This can be caused by lesions on the brain stem, occurring most often from strokes, but also tumors, sencephalitis, or abscesses.[4] Recent reports have also mentioned that it is possible to get musical hallucinations from listening to music for long periods of time.[1] Florid hallucinations are usually associated with drug use (particularly hallucinogenic drugs), sleep deprivation, psychosis or neurological illness.
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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #793 on: 24/08/2007 14:01:30 »
id·i·o·blast

 a plant cell (as a sclereid) that differs markedly from neighboring cells

a botanical term for an individual cell which is distinguished by its shape, size or contents, such as the stone-cells in the soft tissue of a pear.

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Re: A-Z of AVIONICS
« Reply #794 on: 24/08/2007 14:05:28 »
Jute is a long, soft, shiny vegetable fibre that can be spun into coarse, strong threads. It is produced from plants in the genus Corchorus, family Malvaceae.

Jute is one of the cheapest natural fibres and is second only to cotton in amount produced and variety of uses. Jute fibres are composed primarily of the plant materials cellulose (major component of plant fibre) and lignin (major components wood fibre). It is thus a ligno-cellulosic fibre that is partially a textile fibre and partially wood. It falls into the bast fibre category (fibre collected from bast or skin of the plant) along with kenaf, industrial hemp, flax (linen), ramie, etc. The industrial term for jute fibre is raw jute. The fibres are off-white to brown, and 1–4 meters (3–12 feet) long.


Jute fibre is often called hessian; jute fabrics are also called hessian cloth and jute sacks are called gunny bags in some European countries. The fabric made from jute is popularly known as burlap in North America.


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Offline neilep

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Re: A-Z of AVIONICS
« Reply #796 on: 31/08/2007 17:28:14 »
Lake


A lake (from Latin lacus) is a body of water or other liquid of considerable size contained on a body of land. A vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher latitudes. In ecology the environment of a lake is referred to as lacustrine. Large lakes are occasionally referred to as "inland seas" and small seas are occasionally referred to as lakes. Smaller lakes tend to put the word "lake" after the name, as in Green Lake, while larger lakes often invert the word order, as in Lake Ontario, at least in North America. In some places, the word "lake" does not correctly appear in the name at all (eg Windermere in Cumbria).

Most lakes have a natural outflow in the form of a river or stream, but some do not, and lose water solely by evaporation and/or underground seepage. They are termed endorheic lakes (see below).

The term lake is also used to describe a feature such as Lake Eyre, which is a dry basin most of the time but may become filled under seasonal conditions of heavy rainfall.

Many lakes are artificial and are constructed for hydro-electric power supply, recreational purposes, industrial use, agricultural use, or domestic water supply.

Evidence of extra-terrestrial lakes exists; "definitive evidence of lakes filled with methane" was announced by NASA as returned by the Cassini Probe observing the moon Titan, which orbits the planet Saturn.

[attachment=583]
A Lake !!


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Offline iko

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Re: A-Z of AVIONICS
« Reply #797 on: 31/08/2007 21:17:30 »
Lake


A lake (from Latin lacus) is a body of water or other liquid of considerable size contained on a body of land. A vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher latitudes. In ecology the environment of a lake is referred to as lacustrine. Large lakes are occasionally referred to as "inland seas" and small seas are occasionally referred to as lakes. Smaller lakes tend to put the word "lake" after the name, as in Green Lake, while larger lakes often invert the word order, as in Lake Ontario, at least in North America. In some places, the word "lake" does not correctly appear in the name at all (eg Windermere in Cumbria).

Most lakes have a natural outflow in the form of a river or stream, but some do not, and lose water solely by evaporation and/or underground seepage. They are termed endorheic lakes (see below).

The term lake is also used to describe a feature such as Lake Eyre, which is a dry basin most of the time but may become filled under seasonal conditions of heavy rainfall.

Many lakes are artificial and are constructed for hydro-electric power supply, recreational purposes, industrial use, agricultural use, or domestic water supply.

Evidence of extra-terrestrial lakes exists; "definitive evidence of lakes filled with methane" was announced by NASA as returned by the Cassini Probe observing the moon Titan, which orbits the planet Saturn.

[attachment=583]
A Lake !!


Your 'lake' looks much more like a Pond to me...  [;D]

« Last Edit: 31/08/2007 21:22:27 by iko »

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Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #798 on: 04/09/2007 22:14:28 »
Lake


A lake (from Latin lacus) is a body of water or other liquid of considerable size contained on a body of land. A vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher latitudes. In ecology the environment of a lake is referred to as lacustrine. Large lakes are occasionally referred to as "inland seas" and small seas are occasionally referred to as lakes. Smaller lakes tend to put the word "lake" after the name, as in Green Lake, while larger lakes often invert the word order, as in Lake Ontario, at least in North America. In some places, the word "lake" does not correctly appear in the name at all (eg Windermere in Cumbria).

Most lakes have a natural outflow in the form of a river or stream, but some do not, and lose water solely by evaporation and/or underground seepage. They are termed endorheic lakes (see below).

The term lake is also used to describe a feature such as Lake Eyre, which is a dry basin most of the time but may become filled under seasonal conditions of heavy rainfall.

Many lakes are artificial and are constructed for hydro-electric power supply, recreational purposes, industrial use, agricultural use, or domestic water supply.

Evidence of extra-terrestrial lakes exists; "definitive evidence of lakes filled with methane" was announced by NASA as returned by the Cassini Probe observing the moon Titan, which orbits the planet Saturn.

[attachment=583]
A Lake !!




Now this is a lake.. Crater Lake.. See the intensity of the deep blue water so blue you think it had to be the sky or a dream!!


"mountains" Volcanic

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Offline neilep

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Re: A-Z of AVIONICS
« Reply #799 on: 10/09/2007 22:02:44 »
I am ' C ' for confused about what letter we're on !

gonna go with 'M'

Mitosis is the process in which a cell duplicates its chromosomes to generate two identical cells. It is generally followed by cytokinesis which divides the cytoplasm and cell membrane. This results in two identical cells with an equal distribution of organelles and other cellular components. Mitosis and cytokinesis jointly define the mitotic (M) phase of the cell cycle, the division of the mother cell into two sister cells, each with the genetic equivalent of the parent cell. Mitosis occurs most often in eukaryotic cells.

In multicellular organisms, the somatic cells undergo mitosis, while germ cells — cells destined to become sperm in males or ova in females — divide by a related process called meiosis. Prokaryotic cells, which lack a nucleus, divide by a process called binary fission.


Mitosis divides genetic information during cell division.
Men are the same as women, just inside out !