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Author Topic: A-Z of AVIONICS  (Read 449090 times)

Offline neilep

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Re: A-Z of AVIONICS
« Reply #800 on: 17/09/2007 22:55:03 »
Niels Bohr


Niels (Henrik David) Bohr [nels ˈb̥oɐ̯ˀ] (October 7, 1885 – November 18, 1962) was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel Prize in 1922. He was also part of the team of physicists working on the Manhattan Project. Bohr married Margrethe Nørlund in 1912, and one of their sons Aage Niels Bohr grew up to be an important physicist, who like his father received the Nobel prize.

 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #801 on: 17/09/2007 23:13:09 »
OXYGEN ( LOL LOL!)
 


Offline jokky3

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Re: A-Z of AVIONICS
« Reply #803 on: 25/09/2007 12:48:02 »
quadruple order
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #804 on: 25/09/2007 13:30:06 »
Richard Buckminster “Bucky” Fuller (July 12, 1895 – July 1, 1983)[1] was an American visionary, designer, architect, poet, author, and inventor.

Throughout his life, Fuller was concerned with the question "Does humanity have a chance to survive lastingly and successfully on planet Earth, and if so, how?" Considering himself an average individual without special monetary means or academic degree[2], he chose to devote his life to this question, trying to find out what an individual like him could do to improve humanity's condition that large organizations, governments, or private enterprises inherently could not do.

Pursuing this lifelong experiment, Fuller wrote more than thirty books, coining and popularizing terms such as "spaceship earth", ephemeralization, and synergetics. He also worked in the development of numerous inventions, chiefly in the fields of design and architecture, the best known of which is the geodesic dome. Carbon molecules known as fullerenes or buckyballs were named for their resemblance to a geodesic sphere.

Late in his life, after working on his concepts for several decades, Fuller had achieved considerable public visibility. He traveled the world giving lectures, and received numerous honorary doctorates. Most of his inventions, however, never made it into production, and he was strongly criticized in most fields he tried to influence such as architecture, or simply dismissed as a hopeless utopian. Fuller's proponents, on the other hand, claim that his work has not yet received the attention that it deserves. According to philosopher N.J.Slabbert, Fuller has an obscure writing style which has impeded the circulation of his ideas.[3]





 

Offline iko

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« Last Edit: 29/09/2007 15:59:09 by iko »
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #806 on: 02/10/2007 02:16:57 »
T cells belong to a group of white blood cells known as lymphocytes and play a central role in cell-mediated immunity. They can be distinguished from other lymphocyte types, such as B cells and NK cells by the presence of a special receptor on their cell surface that is called the T cell receptor (TCR). The abbreviation "T", in T cell, stands for thymus since it is the principal organ for their development.



A T-cell (orange) killing a cancer cell (mauve).
Dr Andrejs Liepins/Science Photo Library
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #807 on: 02/10/2007 02:36:46 »
Stem Cells

Stem cell
From Wikipedia, the free encyclopedia



Stem cells are primal cells found in all multi-cellular organisms. They retain the ability to renew themselves through mitotic cell division and can differentiate into a diverse range of specialized cell types. Research in the human stem cell field grew out of findings by Canadian scientists Ernest A. McCulloch and James E. Till in the 1960s.[1][2]



« Last Edit: 02/10/2007 02:39:20 by Karen W. »
 

Offline Alandriel

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Re: A-Z of AVIONICS
« Reply #808 on: 06/10/2007 22:08:12 »
U - Udometer

fancy name for a simple rain gauge (from lat. udus = wet, moist)

 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #809 on: 07/10/2007 17:54:19 »
Vanadium

(IPA: /vəˈneɪdiəm/) is a chemical element that has the symbol V and atomic number 23. A rare, soft and ductile element, vanadium naturally occurs in certain minerals and is used mainly to produce certain alloys. It is one of the 26 elements found in most living organisms.

Notable characteristics

Vanadium is a soft and ductile, silver-grey metal. It has good resistance to corrosion by alkalis, sulfuric and hydrochloric acid. It oxidizes readily at about 933 K (660 C). Vanadium has good structural strength and a low fission neutron cross section, making it useful in nuclear applications. Although a metal, it shares with chromium and manganese the property of having valency oxides with acid properties.




 

Offline Quantum_Vaccuum

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Re: A-Z of AVIONICS
« Reply #810 on: 07/10/2007 19:19:09 »
Wave lengths AND Wolfram aka Tungsten it is the element with the highest melting point of any metal, it is used in filaments of ordinary light bulbs.
« Last Edit: 07/10/2007 19:23:11 by Quantum_Vaccuum »
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #811 on: 07/10/2007 19:23:13 »
WHEEL

From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Wheel

The force bearing on the axle has an eccentricity e with the point of contact to the rolling surface and exerts a moment about the contact point.
The force bearing on the axle has an eccentricity e with the point of contact to the rolling surface and exerts a moment about the contact point.

A wheel is a circular device capable of rotating on its axis, facilitating movement or transportation or performing labor in machines. A wheel together with an axle overcomes friction by facilitating motion by rolling. Common examples are found in transport applications. More generally the term is also used for other circular objects that rotate or turn, such as a Ship's wheel and flywheel.


http://i17.photobucket.com/albums/b73/karenw44/180px-Wheel_basicssvg.png
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #812 on: 07/10/2007 19:24:04 »
whoops !  LOL
 

Offline Quantum_Vaccuum

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Re: A-Z of AVIONICS
« Reply #813 on: 07/10/2007 19:43:36 »
lol, were on X chromosone?
 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #814 on: 07/10/2007 19:57:24 »
After X Chromosone has to come:


The Y chromosome is the sex-determining chromosome in humans and most other mammals. In mammals, it contains the gene SRY, which triggers testis development, thus determining sex.

Most mammals have one pair of sex chromosomes in each cell. Males have one Y chromosome and one X chromosome, while females have two X chromosomes. In mammals, the Y chromosome contains the gene that triggers embryonic development as a male. This gene is SRY. Other genes (in addition to SRY) on the Y chromosomes of men and other mammals are needed for normal sperm production.

There are exceptions, however. Among humans, some men have two X's and a Y ("XXY", see Klinefelter's syndrome), or one X and two Y's (see XYY syndrome), and some women have three Xs or a single X (and no Y, "X0", see Turner syndrome). There are other exceptions in which SRY is damaged (leading to an XY female), or copied to the X (leading to an XX male). For related phenomena see Androgen insensitivity syndrome and Intersex.

Presence or absence of the Y-chromosome is a method of sex determination.





Spermy wermy carrying Y Chromosone !
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #815 on: 07/10/2007 20:17:41 »
ZIPPER

A device used to close a mans/womens clothing/ trousers//! It is also helpful in the deterrence of sending those happy little chromosomes happily on their merry way to conquer and divide the defenceless egg that awaits fertilization...LOL sorry couldn't help it!
 

Offline DoctorBeaver

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Re: A-Z of AVIONICS
« Reply #816 on: 07/10/2007 20:25:53 »
Zyzygy

Used by the psychologist Karl Jung to describe the "yoking together" of archetypal symbolic pairings.
 

Offline Quantum_Vaccuum

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Re: A-Z of AVIONICS
« Reply #817 on: 08/10/2007 03:49:14 »
 I WANT TO START IT AGAIN!

ALPHA...BETA.GAMA...
 

Offline Karen W.

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Re: A-Z of AVIONICS
« Reply #818 on: 08/10/2007 07:49:31 »
Biology
 

Offline Alandriel

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Re: A-Z of AVIONICS
« Reply #819 on: 08/10/2007 14:40:59 »
Cafe - au - lait








spots









Cafe au lait spots are light brown pigmented areas on the skin; although a clinical sign found associated with some diseases, its is mostly a normal condition.

 ;D

 

Offline neilep

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Re: A-Z of AVIONICS
« Reply #820 on: 08/10/2007 19:25:30 »
Jean le Rond d’Alembert


Jean le Rond d’Alembert (1717-1783), French mathematician, philosopher, and Encyclopedist. Born in Paris, he was the illegitimate son of the French writer Claudine Guérin de Tencin and was left as an infant on the steps of the Chapel of Saint Jean le Rond, from which he received his name. He was educated at the Collège Mazarin, where he excelled in mathematics, physics, and astronomy. At the age of 22 he wrote his first published work, Mémoire sur le calcul intégral (Report on Integral Calculus, 1739). His most important scientific work, Traité de dynamique (Treatise on Dynamics, 1743), which marks an epoch in the science of mechanics, is based on the theory known as d'Alembert's principle, discovered by him at the age of 26 and expressed in the proposition: The resultant of the forces impressed upon a system is equivalent to the effective force of the entire system. His Réflexions sur la cause générale des vents (Reflections on the General Cause of Winds, 1746) contains the first conception of the calculus of partial differential equations. In 1749 he proposed the first analytical solution of the precession of the equinoxes. In 1751 he became associated with the French Encyclopedist Denis Diderot in editing the great French Encyclopédie. Although he withdrew from the editorship in 1758 because of government interference with the publication, d'Alembert continued to contribute articles on science and philosophy.
 

Offline Quantum_Vaccuum

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Re: A-Z of AVIONICS
« Reply #821 on: 09/10/2007 01:22:34 »
Einsteinium  Wikipedia:
Quote
Einsteinium (IPA: /ˌʌɪnˈstʌɪniəm/) is a synthetic element in the periodic table that has the symbol Es and atomic number 99. A metallic and highly radioactive transuranic element (7th in the series) in the actinides, einsteinium is produced by bombarding plutonium with neutrons and was discovered in the debris of the first hydrogen bomb test. It was named after Albert Einstein and has no known uses. Tracer studies using the isotope 253Es show that einsteinium has chemical properties typical of a heavy trivalent, actinide element.

 

Offline iko

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Re: A-Z of AVIONICS
« Reply #822 on: 09/10/2007 18:22:17 »
Flutter testing (aircraft)










Multiblock grid, NASA
transonic flutter cascade



What is Flutter?

Flutter is the rapid and self-excited vibration of wings, tail surfaces and other aircraft parts that can damage or destroy an aircraft component. It is caused by the flow of air across the surface of the structure. Effectively, the aerodynamic forces couple with the structural bending and twisting to result in the destructive vibration. Flight flutter testing is the process of determining a flight envelope within which an aircraft is safe to operate. Traditional approaches for flight flutter testing do not accurately predict the onset of instability so this testing is a very time-consuming and expensive process.

« Last Edit: 10/10/2007 18:26:01 by iko »
 

Offline DoctorBeaver

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Re: A-Z of AVIONICS
« Reply #823 on: 11/10/2007 09:31:27 »
Georgi-Glashow

Theory Of Everything named after the 2 scientists who proposed it.
 

Offline Alandriel

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Re: A-Z of AVIONICS
« Reply #824 on: 11/10/2007 19:53:59 »
Hypostome (tick)



A hypostome (also called the maxilla, radula, labium or Unterkiefer), is a calcified harpoon-like structure near the mouth area of certain parasitic arthropods including ticks, that allows them to anchor themselves firmly in place on a host mammal while sucking blood. This mechanism is normally so strong that removal of a lodged tick requires two actions: One to remove the tick, and one to remove the remaining head section of the tick.



... that's why the pests are so tricky to pry off......  ::)
 

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Re: A-Z of AVIONICS
« Reply #824 on: 11/10/2007 19:53:59 »

 

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