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Topic: Corona


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In the News (Tue 12 Dec 17)

  
  Corona : The Leader in Professional Quality Tools
Corona Clipper, manufacturer of quality long handle and pruning tools for the landscaper, agriculturist, arborist and do-it-yourself markets has added a new line of professional post hole diggers (PHD) to its arsenal.
Key players in Corona’s new PHD line include the PD 60000 Heavy Duty Hercules PHD, with a 10-gauge, tempered steel head for a long service life.
Also new is the PD 40000 Heavy Duty Atlas PHD, featuring a 14-gauge, tempered steel head, sharpened blade edge and 48" extra thick ash handle; the PD 20000 Atlas PHD with a 14-gauge steel head and the PD 10000 Promo PHD, which has a 15-gauge steel head and 48" hardwood handles.
rd.business.com /index.asp?epm=s.1&bdcq=corona&bdcr=5&bdcu=http://www.coronaclipper.com/&bdcp=&partner=2662601&bdcs=nwuuid-2662601-976D358B-007E-0238-C735-CBB40AE3D63A-ym   (304 words)

  
  Coronae
Coronae have an intensely bright central aureole which is almost white and fringed with yellows and reds.
The coronae is much smaller than the 22° halo which can also ring the sun and moon.
Coronae are produced by the diffraction of light by tiny cloud droplets or sometimes small ice crystals.
www.atoptics.co.uk /droplets/corona.htm   (268 words)

  
  Coronae   (Site not responding. Last check: 2007-10-26)
Coronae have an intensely bright central aureole which is almost white and fringed with yellows and reds.
The coronae is much smaller than the 22° halo which can also ring the sun and moon.
Coronae are produced by the diffraction of light by tiny cloud droplets or sometimes small ice crystals.
www.sundog.clara.co.uk /droplets/corona.htm   (268 words)

  
 Corona - Wikipedia, the free encyclopedia
The Sun's corona is much hotter (by a factor of nearly 200) than the visible surface of the Sun: the photosphere's average temperature is 5800 kelvins compared to the corona's one to three million kelvins.
The corona is separated from the photosphere by the relatively shallow chromosphere.
The first direct observation of waves propagating into and through the solar corona was made in 1997 with the SOHO space-borne solar observatory, the first platform capable of observing the Sun in the extreme ultraviolet for long periods of time with stable photometry.
en.wikipedia.org /wiki/Corona   (1417 words)

  
 corona - Search Results - MSN Encarta
The corona is the very hot layer of the solar atmosphere above the chromosphere.
Corona (city, California), fast-growing residential city, Riverside County, southern California; platted 1886, incorporated 1896.
Covert operations tend to grab the headlines, but most of the people and the money in the early CIA were devoted to more orthodox intelligence work....
encarta.msn.com /encnet/refpages/search.aspx?q=corona   (165 words)

  
 The Solar Wind   (Site not responding. Last check: 2007-10-26)
But the corona can only be seen well in visible light from the earth during eclipses of the Sun by the Moon because it is millions of times fainter than the photosphere, the visible surface of the Sun.
Because of its high temperature, the coronal plasma is highly ionized, and the corona is thus visible in a variety of emission lines.
The corona is permeated by magnetic fields that in some regions form closed loops and in others open almost radially to the external space.
sohowww.nascom.nasa.gov /descriptions/mission/english/wind_and_corona.html   (215 words)

  
 Urban Legends Reference Pages: Urine in Corona Beer
Corona is a light lager often drunk with a lime.
Corona bombarded the press with news releases about the hoax and spent $500,000 beaming a public education program via satellite to TV stations willing to run it.
Corona has rebuilt its market share over the years and in 1999 in the United States was the best-selling import and the 10th best-selling beer overall.
www.snopes.com /horrors/food/corona.asp   (602 words)

  
 SPARTAN 201-3: The Corona
Even with this development, there are practical limitations to ground-based observing of the solar corona imposed by the scattering of light by both dust and molecules in the earth's atmosphere, as the brightness of the white light corona ranges from one millionth to one billionth of the central solar disk brightness.
Images of the corona made from satellites in low earth orbit in the soft X-ray region of the spectrum demonstrate a highly structured corona where besides the forces of pressure and gravity, magnetic fields play a role in the determination of the Sun's outer atmosphere.
Three forces are active in the solar corona at the base of the heliosphere; these are gas pressure and gravity forces similar to those experienced by humans near the earth's surface, and a third force produced by solar magnetic fields.
umbra.nascom.nasa.gov /spartan/the_corona.html   (1728 words)

  
 Corona
Corona is caused by the electric field next to an object exceeding the breakdown value for air (or whatever it is immersed in).
Since corona is fundamentally a breakdown phenomenon, it follows Paschen's law: the voltage is a function of pd.
A popular approach to reducing corona on wires is to surrounding the conductor by a semiconducting film or layer of greater radius.
home.earthlink.net /~jimlux/hv/corona.htm   (674 words)

  
 The Sun's Corona - Introduction   (Site not responding. Last check: 2007-10-26)
This region, called the Solar Corona, is where the solar wind originates.
The corona has been found to emit X-ray radiation (the corona is a plasma; at temperatures greater than a million degrees a plasma will radiate a lot of X-rays).
The corona can be seen during solar eclipses, when the main radiation from the Sun's surface is blocked by the passage of the Moon.
imagine.gsfc.nasa.gov /docs/science/mysteries_l1/corona.html   (892 words)

  
 CORONA Summary
CORONA is the name for the first operational space photo reconnaissance satellite.
The Corona vehicle was launched by a THOR booster and used the AGENA spacecraft as the upper stage.
CORONA's payload was a vertical-looking, reciprocating, 70-degree panoramic camera developed by Itek that exposed Eastman Kodak film by scanning at right angles to the line of flight.
www.globalsecurity.org /space/systems/corona.htm   (1001 words)

  
 City of Corona - Corona Public Library
The City of Corona is located approximately 45 miles southeast of Los Angeles in western Riverside County.
By 1982 Corona's agricultural industry faced a bleak future as "production costs made the economics of farming only fair or poor." Plans were begun to replace the groves with approximately 12,500 dwelling units.
The plant produced citric acid, lemon oil, lemon juice and pectin which helped Corona gain the nickname "Lemon Capital of the world." As housing developments began to overtake the Southern California citrus orchards, Sunkist found that the lack of a local supply was forcing them to move.
www.coronapubliclibrary.org /index.cfm?go=HistoryOfCorona   (2455 words)

  
 Corona (satellite) - Wikipedia, the free encyclopedia
Corona was the name of a series of US military reconnaissance satellites operated under a CIA program with substantial assistance from the US Air Force, used for photographic surveillance of the Soviet Union, China and other areas from June 1959 until May 1972.
The Corona satellites used 31,500 ft (9,600 m) of special 70 mm film with a 24 inch (0.6 m) focal length lens.
The last Corona launch was on May 25, 1972 - the project was abandoned after a Soviet submarine was detected waiting below a Corona mid-air retrieval zone.
en.wikipedia.org /wiki/Corona_(satellite)   (784 words)

  
 The Sun's Corona
Structures visible in the corona at such times suggest that they are shaped by magnetic fields, and therefore, that the corona consists of plasma.
XThe most remarkable aspect of the corona is its high temperature, deduced by the Swedish astronomer Bengt Edlen in 1942 after a study of the corona's light.
Unknown spectral lines emitted by the corona were similarly credited to a new element "coronium" until Edlen showed that they came from the familiar atoms of iron, nickel and calcium, after they had lost an appreciable number of electrons (e.g.
www-istp.gsfc.nasa.gov /Education/wcorona.html   (614 words)

  
 Corona, California CA, city profile (Riverside County) - hotels, festivals, genealogy, newspapers - ePodunk
Corona is a city in Riverside County, in the Riverside-San Bernardino metro area.
At the time of the 2000 census, the per capita income in Corona was $21,001, compared with $21,587 nationally.
Median rent in Corona, at the time of the 2000 Census, was $733.
www.epodunk.com /cgi-bin/genInfo.php?locIndex=10029   (628 words)

  
 The Solar Corona
As we shall discuss further in the section on the solar wind, the coronal holes are regions where the magnetic field lines of the Sun are open, allowing coronal gas to flow outward into space and producing the solar wind.
The corona during the active Sun period shows many streamers at all angles around the disk of the Sun, while the corona during the quiet Sun period shows larger bottle-shaped streamers (the helmet streamers mentioned earlier) concentrated in latitudes near the equator.
The extremely high temperature of the corona is thought to be associated with effects of the solar magnetic field, which can store and transport energy from lower regions of the Sun to the corona.
csep10.phys.utk.edu /astr162/lect/sun/corona.html   (522 words)

  
 Welcome to the City of Corona
Incorporated in 1896 as a small farming community best known for its produce, Corona is now a quality community with a population of more than 146,284 and a diverse economic base.
Corona residents may now renew dog licenses on-line through the Corona Store at http://discovercorona.com/ after they register and create a log-in account and password.
Corona Animal Control's Dog Licensing Bureau is open to the public Monday thru Saturday from 10:00am.
www.ci.corona.ca.us   (599 words)

  
 corona
In 1868, he petitioned the post office to change West Flushing's name to 'Corona' as he felt that his neighborhood was the "crown jewel" of Long Island.
Congregation Tifereth Israel of Corona, also known as the Home Street Synagogue, was added to the National Register of Historic Places in 2002.
Pianist Cecil Taylor was born in Corona, and the title of one of his more recent albums contains the town's name.
www.forgotten-ny.com /NEIGHBORHOODS/corona/corona.html   (3237 words)

  
 About the Corona   (Site not responding. Last check: 2007-10-26)
The corona is very thin and faint and is therefore very difficult to observe from the earth.
Typically, we observe the corona during a total solar eclipse or by using a coronagraph telescope which simulates an eclipse by covering the bright solar disk.
The corona also emits energy of many different wavelengths, from long wavelength radio waves, to short wavelength X-rays.
solar.physics.montana.edu /YPOP/Program/corona1.html   (208 words)

  
 NSWC Corona Division >> Who We Are
NSWC Corona is the Navy's only independent analysis and assessment center, with more than 1,000 scientists, engineers, and support staff, and more than 800 contractors.
The mission of NSWC Corona is to "Gauge the warfighting capacity of ships and aircraft, from unit to battlegroup level, by assessing the suitability of design, the performance of weapons and equipment, and the adequacy of training." Click here to learn more.
NSWC Corona is one of six Warfare Centers under the NAVSEA Command.
www.corona.navy.mil /us/index.htm   (227 words)

  
 The Solar Corona
Understanding the reason the Sun's corona is so hot is one of the many challenges facing solar physicists today.
Shown on the left is a blending of a Yohkoh X-ray image (reddish colors) with an eclipse image taken by the High Altitude Observatory (gray-white colors) on November 3, 1994.
Near the poles of the Sun, the corona is dark for both X-rays and white light.
www.windows.ucar.edu /tour/link=/sun/atmosphere/corona.html   (303 words)

  
 Compare Prices and Read Reviews on Corona Extra at Epinions.com
Corona, a bland and fizzy lager from Mexico, overtook Heineken in sales to become the number one selling imported beer in America, a position Heineken had held for decades.
Certainly, there is more to do with the success of Corona today; after all there are a veritable plethora of beers imported into the U.S. market, many of them very similar in many respects to Corona Extra.
One bonus Corona has in its favor is the large Hispanic population in the United States, many of whom emigrated from Mexico and are familiar with the brand.
www.epinions.com /content_87401598596   (788 words)

  
 CORONA Summary
CORONA is the name for the first operational space photo reconnaissance satellite.
The Corona vehicle was launched by a THOR booster and used the AGENA spacecraft as the upper stage.
CORONA's payload was a vertical-looking, reciprocating, 70-degree panoramic camera developed by Itek that exposed Eastman Kodak film by scanning at right angles to the line of flight.
www.fas.org /spp/military/program/imint/corona.htm   (957 words)

  
 corona
The CORONA FOUR was introduced about 1924, and was an attempt to compete with larger portables such as REMINGTON had developed, with four rows of keys.
Largely the four-row CORONA portable, and sold in a couple of different variants for only a few years.
Two bankruptcies followed, with the closing of its Singapore plant in 1996 and selling off of the new Mexico plant in 1997 coming out of the first, and the results of the second are still unclear; the company has a new owner, but its future is not yet assured.
www.geocities.com /wbd641/corona.html   (973 words)

  
 The atmosphere of the Sun - the Corona   (Site not responding. Last check: 2007-10-26)
Because the corona is so thin, you can only see it during a solar eclipse, when the glare of the Sun itself (its photosphere) is blocked by the moon.
The corona can be seen on the image to the left.
The temperature of the corona is very high: About a million degrees.
www.astro.uva.nl /demo/sun/corona.htm   (233 words)

  
 The Sun's sizzling corona heats up
It wasn't until the 17th and 18th centuries that astronomers were certain that the corona surrounded the Sun and not the Moon.
The first hint that the corona might be really interesting surfaced during the total solar eclipse of August 7, 1869, which was visible from Alaska to North Carolina, when observers discovered a weak emission line in the green part of the spectrum of the corona.
Since the corona cools rapidly, losing its heat as radiation and the solar wind, something has to be pumping energy up from the surface.
science.nasa.gov /newhome/headlines/ast02sep99_1.htm   (2113 words)

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