A-Z of AVIONICS

Karen W. · « **Reply #500 on:** 24/02/2007 21:09:16 »

Organisms

iko · « **Reply #501 on:** 24/02/2007 21:11:36 »

Ops! too late...good show Karen!

O ring

http://www.pspglobal.com/images/o-ring-kits.jpg
http://www.mhatt.aps.anl.gov/dohn/ref_exp_sci/o-ring.png

paul.fr · « **Reply #502 on:** 24/02/2007 21:47:15 »

Planetarium: invented in 1913 by walter bauersfeld

Karen W. · « **Reply #503 on:** 24/02/2007 22:07:42 »

Quantum Physics

paul.fr · « **Reply #504 on:** 24/02/2007 22:54:38 »

Radon Rn

Karen W. · « **Reply #505 on:** 25/02/2007 13:18:44 »

SCIENCE (LOL)

iko · « **Reply #506 on:** 25/02/2007 14:40:00 »

Thyristor

http://www.lelectronique.com/ressource/cours/thyristor3.gif
http://www.hemar.ch/images/triac.gif
http://www.radio-electronics.com/info/data/semicond/thyristor/thyristor_equiv_circuit.gif

Thyristor

The thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material.
They act as a switch, conducting when their gate receives a current pulse, and continue to conduct for as long as they are forward biased.

Some sources define silicon controlled rectifiers and thyristors as synonymous; others define SCRs as a subset of thyristors. Among the latter, the International Electrotechnical Commission 60747-6 standard stands out.
Non-SCR thyristors include devices with more than four layers, such as triacs and DB-GTOs
...
more from Wikipedia, the free encyclopedia: http://en.wikipedia.org/wiki/Thyristor

Karen W. · « **Reply #507 on:** 25/02/2007 14:47:52 »

ULTRAMUNDANE = Being beyond the world or the limits of our solar system.

iko · « **Reply #508 on:** 25/02/2007 14:58:49 »

Varicap diode

http://ourworld.compuserve.com/homepages/G_KNOTT/varicap.gif
http://www.picfun.com/parts/varicap.jpg
http://content.answers.com/main/content/wp/en-commons/thumb/b/bb/250px-Varactor.svg.png

paul.fr · « **Reply #509 on:** 26/02/2007 01:31:05 »

Watson-Watt. Sir Robert Alexander. Helped to establish the US radar system

Karen W. · « **Reply #510 on:** 26/02/2007 04:43:16 »

Xanthocroid person = (Rare)a person Having light colored hair and complexion. (rare)

paul.fr · « **Reply #511 on:** 26/02/2007 04:52:45 »

Y-chromosone

Karen W. · « **Reply #512 on:** 26/02/2007 05:34:55 »

Zymogenesis = The process by which a zymogen becomes a enzyme

iko · « **Reply #513 on:** 26/02/2007 18:45:56 »

Aflatoxins

(Aspergillus flavus toxins = aflatoxins)

http://www.aflatoxin.info/images/afla_2.jpg

http://www2.dpi.qld.gov.au/images/2326.jpg
http://www.moldbacteria.com/Aspergillusflavus.gif
http://www.osel.cz/_img/img1094798100.jpg

Aflatoxins are naturally occurring mycotoxins that are produced by many species of Aspergillus, a fungus, most notably Aspergillus flavus and Aspergillus parasiticus. Aflatoxins are toxic and carcinogenic. After entering the body, aflatoxins are metabolized by the liver to a reactive intermediate, aflatoxin M1, an epoxide. Aflatoxin is frequently misspelled as alfatoxin.

Aspergillus is common and widespread in nature and are most often found when crops are exposed to a high humidity environment over a long period of time or are damaged in stressful conditions such as drought, a condition which lowers the barrier to entry.

The native habitat of Aspergillus is in soil, decaying vegetation, hay, and grains undergoing microbiological deterioration and it invades all types of organic substrates whenever and wherever the conditions are favorable for its growth. Favorable conditions include high moisture content (at least 7%) and high temperature.

Crops which are frequently affected include cereals (maize, sorghum, pearl millet, rice, wheat), oilseeds (peanut, soybean, sunflower, cotton), spices (chile peppers, black pepper, coriander, turmeric, ginger), and tree nuts (almond, pistachio, walnut, coconut, brazil nut).

The toxin can also be found in the milk of animals which are fed contaminated feed.
...
more from wikipedia: http://en.wikipedia.org/wiki/Aflatoxin

Karen W. · « **Reply #514 on:** 28/02/2007 17:12:33 »

Benjamin Franklin

paul.fr · « **Reply #515 on:** 28/02/2007 17:16:51 »

Carl Edward Sagan
From wikipedia

Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer and astrobiologist and a highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series Cosmos: A Personal Voyage, which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history.[1] A book to accompany the program was also published. He also wrote the novel Contact, the basis for the 1997 Robert Zemeckis film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, humanism, and the scientific method.

Karen W. · « **Reply #516 on:** 28/02/2007 17:29:49 »

Diatrophism = The process by which the earths surface is reshaped through rock movements and it's displacements.

iko · « **Reply #517 on:** 28/02/2007 18:26:09 »

Eicosapentaenoic acid (EPA)

http://www.3dchem.com/imagesofmolecules/epa.gif
http://zephyr.meteo.mcgill.ca/andrew/vm3/eicosapentaenoic-acid.png
http://www.3dchem.com/imagesofmolecules/epa.jpg

...together with DHA, the peculiar
polyunsaturated fatty acid (PUFA)
in cod liver oil.

Karen W. · « **Reply #518 on:** 28/02/2007 19:24:04 »

Folacin = The same as folic acid, which is a crytaline substance found in green leaves and certain other plants and animal tissues, exhibiting vitamin B activity.Used in medicines especially for treating certain anemias.

iko · « **Reply #519 on:** 28/02/2007 20:11:39 »

Geothermal energy

http://www.cres.gr/kape/energeia_politis/images/geothermal.jpg
http://www.fplforkids.com/graphics/geo3.jpg
http://www.technologystudent.com/images5/geo1.gif

A-Z of AVIONICS

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