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Topic: Anders Jonas Angstrom


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  Anders Jonas Angstrom - LoveToKnow 1911
ANDERS JONAS ANGSTROM (1814-1874), Swedish physicist, was born on the 13th of August 1814 at LOgdO, Medelpad, Sweden.
He was the first, in 1867, to examine the spectrum of the aurora borealis, and detected and measured the characteristic bright line in its yellow green region; but he was mistaken in supposing that this same line, which is often called by his name, is also to be seen in the zodiacal light.
His son, Knut Johan Angstrom, was born at Upsala on the 12th of January 1857, and studied at the university of that town from 1877 to 1884.
www.1911encyclopedia.org /Anders_Jonas_Angstrom   (330 words)

  
 Anders Jonas Ångström
Anders Jonas Ångström (August 13, 1814 - June 21, 1874) was a physicist in Sweden, one of the founders of the science of spectroscopy.
He was the first, in 1867, to examine the spectrum of the aurora borealis, and detected and measured the characteristic bright line in its yellow green region.
The angstrom units with which the wavelength of light is measured are named for him.
www.ebroadcast.com.au /lookup/encyclopedia/an/Anders_Jonas_Angstrom.html   (261 words)

  
 angstrom - Search Results - MSN Encarta
Angstrom, unit of length equal to one-ten-millionth of a millimeter, used for atomic measurements and the wavelengths of electromagnetic radiation....
Ångström, Anders Jonas (1814-74), Swedish astronomer and physicist.
accent, acute, angstrom, apostrophe, cedilla, circumflex, dieresis, grave, hácek, tilde, umlaut, breve
encarta.msn.com /angstrom.html   (118 words)

  
 There's Something About Angstrom   (Site not responding. Last check: 2007-10-13)
The Angstrom Foundation AB exists in some form, possibly even as a legally registered foundation in Sweden, but it is obscure and certainly not "prestigious."  A Nobelstiftelsen or Knut och Alice Wallenbergs Stiftelse it is not.
The Angstrom Foundation AB's use of the Ångström memorial medal of the Royal Swedish Academy of Sciences as a component of the 1993 Ångström Medal award to Richard C. Hoagland was an unauthorized use of the academy's medal.
He was the recipient of the Angstrom Medal for Excellence in Science in Stockholm, Sweden, a colleague of Carl Sagan, and a former science adviser to CBS News and Walter Cronkite.
home.teleport.com /~photoget/angstrom.htm   (2737 words)

  
 Angstrom
An angstrom (Å), is a unit of length, which equals 10
It is named after the Swedish physicist Anders Jonas Ångström, one of the founders of spectroscopy.
This unit is sometimes used for measuring the sizes of atoms, whose radii are between 0.25 and 3 Å.
www.ebroadcast.com.au /lookup/encyclopedia/an/Angstrom.html   (177 words)

  
 Richard C. Hoagland and Europa: Background Information.
Angstrom doesn't refer to Hoagland by name, I believe that it is clear who he is thinking of in that strongly-worded statement.
Angstrom informed me in 1998 that Hoagland's "old hypothesis of water existing on Europa" was a factor in his decision to give Hoagland the Angstrom Medal, I replied by informing Mr.
Angstrom that that hypothesis was not due to Hoagland, and was, in fact, the subject of a number of scientific papers throughout the 1970s and offered to send him more details.
www.math.washington.edu /~greenber/FaxBack.html   (8281 words)

  
 Colloidal Minerals or Angstrom-sized Water-Soluble Ionic Minerals and Mineral Waters
An angstrom is a unit of measure named after Anders Jonas Angstrom (1814-1874), a Swedish physicist and pioneer in spectroscopy.
The Angstrom Unit is a length equal to one hundred-millionth of a centimeter.
It is smaller than a micron and a particle an angstrom in size is able to enter the cell well through the process of osmosis.
www.mlmanonymous.com /angstrom.htm   (560 words)

  
 Phil Plait's Bad Astronomy: Misconceptions: Hoagland's Credentials
Anders-Jonas Angstrom was an 18th century Swedish scientist who was one of the first to use spectroscopy in astronomy.
Anders Marelius, head of the department of physics at Uppsala University, had this to say, as quoted by Peter Linde: "The Angstrom foundation is a private foundation without connections to Uppsala or any other university.
The Angstrom Foundation was created in 1988 by L. Angstrom to further the family tradition of encouraging excellence in science.
www.badastronomy.com /bad/misc/hoagland/credentials.html   (3384 words)

  
 Astronomers A
He organized expeditions to study the transits of Venus in 1874 and 1882 in order to measure the size of the solar system.
Angstrom, Anders Jonas (1814-1874) - Swedish scientist who in 1862 announced the discovery of hydrogen in the Sun.
He took careful measurements of the wavelengths revealed in spectra, and the unit of measurement he used (ten billionth of a meter) is named in his honor.
www.pa.msu.edu /people/horvatin/Astronomers/astronomers_a.htm   (247 words)

  
 Angstrom
An angstrom or ångström (Å), is a unit of length, which equals 10
The angstrom is named after the Swedish physicist Anders Jonas Ångström;, one of the founders of spectroscopy.
Unicode includes the "angstrom sign" at U+212B (in your browser it looks like Å); still the standard states that the "preferred representation is 00C5" — i.e.
www.knowledgefun.com /book/a/an/angstrom.html   (264 words)

  
 Body   (Site not responding. Last check: 2007-10-13)
Similarly, the prefix nano is used to express one billionth; nanometer = one billionth of a meter.
The last unit, the Angstrom, is named for Anders Jonas Angstrom, a Swedish scientist, who was the first to try to measure the size of wavelengths of light.
An Angstrom is equal to one ten billionth of a meter.
pages.prodigy.net /jhonig/bignum/ksmmeas.html   (140 words)

  
 Angstrom Unit
An angstrom is a unit of length used to measure small things such as the wavelengths of light, atoms and molecules.
Since a typical atom is about 1 angstroms across, we use atoms as units of measurement in this History of the Universe instead of angstroms.
When we say something is so many atoms across, what we really mean is so many angstroms across.
www.historyoftheuniverse.com /angstrom.html   (106 words)

  
 Angstrom | | Dictionary & Translation by Babylon
An angstrom, angström, or ångström (symbol Å) is a non-SI unit that is internationally recognized.
It is sometimes used expressing the size of atoms, and lengths of chemical bonds and visible-light spectra.
L'ångström fut nommé ainsi en l'honneur du physicien suédois Anders Jonas Ångström, un des inventeurs de la spectroscopie.
www.babylon.com /definition/Angstrom/All   (353 words)

  
 ANDERS JONAS ANGSTROM ... - Online Informationsartikel ungefähr ANDERS JONAS ANGSTROM ...
ANGSTROM (1814-1874), schwedischer Physiker, wurde auf dem t3th von See also:
ANGSTROM KNuT JOHAN, wurde bei Upsala auf See also:
Kopieren Sie nicht, downloaden Sie, bringen Sie oder wiederholen Sie anders den Aufstellungsortinhalt ganz oder teilweise.
encyclopedia.jrank.org /de/AMN_ANS/ANGSTROM_ANDERS_JONAS_1814_1874.html   (743 words)

  
 RTT Hot Topic, September 2005
This optical wavelength business was all a bit curious and still is. Anders Jonas Angstrom (1814-1874) decided quite sensibly that light should be measured in wavelengths and that given that the radiant energy was coming from the sun, then it would be a good idea to relate the measurements to a hydrogen atom.
Thus an Angstrom was defined as being equivalent to the diameter of a hydrogen atom and equivalent to one tenth on a nanometer.
Anyway, Anders Jonas Angstrom's work was carried on by his son Knut and formed a body of work that remains directly relevant today to the science of optical measurement.
www.rttonline.com /HotTopics/HT_Dec05.htm   (2648 words)

  
 Definition of Angstrom   (Site not responding. Last check: 2007-10-13)
An angstrom, angström, or ångström (symbol Å) is a unit of length.
It is used sometimes used expressing the size of atoms, and lengths of chemical bonds and visible-light spectra.
The ångström is named after the Swedish physicist Anders Jonas Ångström (1814—1874), one of the founders of spectroscopy.
www.solarisnetwork.com /term_Angstrom   (446 words)

  
 ANDERS JONAS ANGSTROM ... - Online Information article about ANDERS JONAS ANGSTROM ...   (Site not responding. Last check: 2007-10-13)
- Online Information article about ANDERS JONAS ANGSTROM...
Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
ANGSTROM, was born at Upsala on the 12th of See also:
encyclopedia.jrank.org /ANC_APO/ANGSTROM_ANDERS_JONAS_1814_1874.html   (765 words)

  
 images of nature - who we are
These are called Angstroms after a Swedish scientist named Anders Jonas Angstrom.
Angstrom studied solar spectra and used this unit a great deal in his work.
If one is working with atoms, or structures composed of small groups of atoms, one can simply use Angstroms.
ion.eas.asu.edu /descript_dimens.htm   (539 words)

  
 Solar Storms and You: Classroom Activities
In the mid-19th century, Anders Jonas Angstrom noted that there was a similarity between auroral displays and certain kinds of electrical discharges that could be studied under laboratory conditions.
This particular light is only produced at a single wavelength near 5577 Angstroms, about mid-way through the familiar visible spectrum.
It is a feature caused by oxygen atoms at very low gas densities being excited by a specific amount of energy.
image.gsfc.nasa.gov /poetry/workbook/p43.html   (1203 words)

  
 SPACE.com -- War of the Words: Scientist Attacks Alien Claims
He is a science writer with a keen interest in space.
Hoagland lists among his awards having received the Angstrom Medal for Excellence in Science.
Hoagland's medal, however, came from the separate Angstrom Foundation Aktiebolag (AFAB).
www.space.com /scienceastronomy/mystery_monday_040315.html   (2235 words)

  
 The Nature of Light
This unit is named in honor of Swedish astronomer and physicist Anders Jonas Angstrom, who in 1862 discovered hydrogen in the atmosphere of the sun.
To convert between the two, simply add a zero to the nanometer measure, or drop the fourth digit (to the right) from the angstrom measure.
These measures are used to show the ranges of a particular color or spectral range.
users.mikrotec.com /~pthrush/lighting/nature.html   (1247 words)

  
 History of Modern Astronomy
Thus, the chemical composition of a light source (including celestial bodies) can be determined from spectral analysis; Kirchoff published a study of the chemical constitution of the Sun im 1859.
Anders Jonas Angstrom (1818-74) published his map of the Solar spectrum with identifiication of lines corresponding chemical elements in 1863.
In 1864, British amateur William Huggins (1824-1910) published his investigations of spectra of stars and nebulae (thereby finding the gaseous nature of diffuse and planetary nebulae).
www.seds.org /~spider/spider/ScholarX/hist_mod.html   (4340 words)

  
 In order to understand the theorectical principles behind laser cooling and trapping, one must become familiar with the ...
Rather, it is devoted to highlighting the essential concepts for understanding how scientists have been able to create dense clouds of atoms with temperatures approaching absolute zero.
In 1853, Anders Jonas Angstrom discovered the most prominent spectral line of atomic hydrogen.
As spectroscopic techniques improved, scientists such as A. Michelson began noticing finer structure within these spectral lines.
webphysics.davidson.edu /Alumni/JoCowan/honors/section1/THEORY.htm   (2894 words)

  
 Ångström - Open House 2   (Site not responding. Last check: 2007-10-13)
Prof emeritus Olle Beckman is working with an exhibithion about Anders Jonas and Knut Ångström.
You can also see copies of their Doctors Diploma.
Claes Granqvist and Mats Olsmats in deep discussions in front of our most used instrument.
www.angstrom.uu.se /ftf/photoalbum/oppethus/oppet2.html   (39 words)

  
 Trivia - How large is an angstrom? - ArcaMax Publishing
Get free "Trivia" headlines on the ArcaMax Toolbar!
An angstrom is a unit of length equal to one ten-millionth of a millimeter, primarily used to express electromagnetic wavelengths.
It was named after Swedish astronomer and physicist Anders Jonas Angstrom (1814-1874).
www.arcamax.com /trivia/s-36602-876794?review=4   (169 words)

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