Difference between revisions of "User talk:Marina"

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==Welcome!==
 
==Welcome!==
   
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Hello, Marina!<br>
 
Welcome at TORI.<br>
 
I see, you already have successfully uploaded one file.<br>
 
Keep doing!<br>
 
You may ask your questions
 
here,<br>
 
at [[File talk:Lovelace-1.jpg]] <br>
 
at [[Talk:Richard Lovelace]] <br>
 
at [[User talk:T]]<br>
 
or at the "discussion" of any other page best related to your question.<br>
 
 
Add four "tilde"s at the end; they become your signature. [[User:T|T]] ([[User talk:T|talk]]) 14:08, 21 December 2020 (JST)
 
Add four "tilde"s at the end; they become your signature. [[User:T|T]] ([[User talk:T|talk]]) 14:08, 21 December 2020 (JST)
 
[[User:T|T]] ([[User talk:T|talk]]) 14:08, 21 December 2020 (JST)
 
[[User:T|T]] ([[User talk:T|talk]]) 14:08, 21 December 2020 (JST)
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== I am using this space for temporary files - modifications for wiki ==
 
== I am using this space for temporary files - modifications for wiki ==
   
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== 26 February ==
In 1968 (10 November), Lovelace and his collaborators discovered period <math>P\approx 33</math> ms of the [[Crab Pulsar]].<ref name=”Lovelace1968”>[https://ui.adsabs.harvard.edu/abs/1968IAUC.2113....1L/abstract “Pulsar NP 0532 Near Crab Nebula”] R. V. E. Lovelace, J. M. Sutton, and H. D. Craft 1968, November, IAU Circ., No. 2113, #1 (1968) </ref><ref name="Lovell1973">[https://ui.adsabs.harvard.edu/abs/1973ozjb.book.....L/abstract "Out of the Zenith. Jodrell Bank 1957-1970"] Sir. Bernard Lovell, 1973, London: Oxford University Press, pp 1-255 (see page159).</ref> As a graduate student working at [[Arecibo Observatory]], Lovelace developed a version of the [[Fast Fourier transform]] program <ref name="Lovelace1969">[https://ui.adsabs.harvard.edu/abs/1969Natur.222..231L/abstract "Digital Search Methods for Pulsars"] 1969, R. V. E. Lovelace, J. M. Sutton, E. E. Salpeter, ''Nature'' 222 (5190), 231-233.</ref>
 
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<ref name="Heideman1984">[https://www.cis.rit.edu/class/simg716/Gauss_History_FFT.pdf "Gauss and the history of the fast Fourier transform"] Heideman, Michael T., Johnson, Don H., Burrus, Charles Sidney (1984). (PDF). IEEE ASSP Magazine. 1 (4): 14–21. CiteSeerX 10.1.1.309.181. doi:10.1109/MASSP.1984.1162257. S2CID 10032502.</ref> which
 
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Please, correct text in three places (numbered as 1, 2 and 3 below).
was adapted to run on the Arecibo Observatory's [[CDC 3000 series|CDC 3200]] computer
 
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New text has more references, it is more precise and more neutral. Also, I removed information which cannot be confirmed directly by references.
<ref name=”LovelaceTaylor2012”>[http://articles.adsabs.harvard.edu/pdf/2012Obs...132..186L "On the Discovery of the Period of the Crab Nebula Pulsar"] R.V.E. Lovelace & G. Leonard Tyler, 2012, The Observatory, V. 132, p. 186-188</ref>. This program helped to separate the periodic pulsar signal from the noise, and one night he discovered the period of the [[Crab pulsar]], which is approximately 33 ms.
 
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<ref name = "Comella1969">[https://ui.adsabs.harvard.edu/abs/1969Natur.221..453C/abstract "Crab nebula pulsar NP 0532"] 1969, J. M. Comella, H. D. Craft, R. V. E. Lovelace, J. M. Sutton, G. L. Tyler, ''Nature'' 221 (5179), 453-454.</ref><ref name=”Lang2013”>[https://books.google.com/books?id=Nq_1CAAAQBAJ&newbks=1&newbks_redir=0&printsec=frontcover&pg=PA1&hl=en#v=onepage&q&f=false "Astrophysical Formulae. Space, Time, Matter and Cosmology"] Kenneth R. Lang 2014, Publisher: Springer Berlin Heidelberg</ref> A few weeks earlier, observers from the [[National Radio Astronomy Observatory]] reported about two pulsating sources near the Crab Nebula, with no evident periodicities.<ref name="Howard1968">[https://ui.adsabs.harvard.edu/abs/1968IAUC.2110....2H/abstract "Pulsating radio sources near Crab Nebula"] Howard, W. E., Staelin, D. H., Reifenstein, E. C. 1968, IAU Circ., No. 2110, #2 (1968)</ref><ref name="Staelin1968">[https://ui.adsabs.harvard.edu/abs/1968Sci...162.1481S/abstract "Pulsating Radio Sources near the Crab Nebula"] Staelin, David H. and Reifenstein, Edward C., III, December 1968, Science, Volume 162, Issue 3861, pp. 1481-1483</ref>. Lovelace and collaborators found that one of pulsars (the NP 0532 - the Crab Pulsar) is located in the center of the Crab Nebula (with precision of 10') and found it's period with a high precision: 33.09 ms.<ref name = "Comella1969"/><ref name=”Lang2913”/>
 
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1. Instead of the phrase:
 
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: He also developed the theory of the stability of electron and ion rings,<ref name="Lovelace1975">[https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.35.162 "Low-frequency stability of astron configurations"] R. V. E. Lovelace 1975, ''Physical Review Letters'' 35 (3), 162-164.</ref>{{Better source needed|date=January 2021}} which is used in current laboratory experiments on [[magnetic confinement fusion]] (for example at [[TAE Technologies]] in California).{{Citation needed|date=January 2021}}
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Please, put the phrase below which is more precise:
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::Lovelace developed the theory of the stability of electron and ion rings,<ref name="Lovelace1975">[https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.35.162 "Low-frequency stability of Astron configurations"] R. V. E. Lovelace 1975, ''Physical Review Letters'' 35 (3), 162-164</ref> which has been used in plasma fusion experiments at Cornell.<ref name="Humphries1980">[https://iopscience.iop.org/article/10.1088/0029-5515/20/12/006/pdf "Intense pulsed ion beams for fusion applications"] S. Humphries Jr. 1980, Nuclear Fusion 20, 1549-1612, see pp. 1560, 1572, 1589</ref>
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2. Also, please substitute the old paragraph:
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:Lovelace proposed a new method of measuring magnetic fields,<ref name=TemnykhLovelace=2003>[https://patents.google.com/patent/US6639403B2/en "System and method for sensing magnetic fields based on movement"] Patent: United States Patent 6,639,403 A. Temnykh and R. V. E. Lovelace, October 28, 2003.</ref>{{Better source needed|date=January 2021}} developed a pioneering theory of intense [[ion beam]]s in pulsed diodes, which are currently used in laboratories,<ref name=SudanLovelace1973>[https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.31.1174 "Generation of intense ion beams in pulsed diodes"]. R. N. Sudan and R. V. Lovelace 1973, ''Physical Review Letters'' 31 (19), 1174.</ref>{{Better source needed|date=January 2021}} and proposed the theory of magnetic insulation, which is used in laboratories including at [[Sandia National Laboratories]].<ref name=Lovelace1974>[https://aip.scitation.org/doi/abs/10.1063/1.1694876 "Theory of magnetic insulation"] R. V. Lovelace, E. Ott 1974, ''The Physics of Fluids'' 17 (6), 1263-1268.</ref>{{Better source needed|date=January 2021}}
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with a new one:
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::Lovelace and collaborator (Prof. Sudan) developed a pioneering theory of intense [[ion beam]]s in pulsed diodes,<ref name="SudanLovelace1973">[https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.31.1174 "Generation of intense ion beams in pulsed diodes"]. R. N. Sudan and R. V. Lovelace 1973, ''Physical Review Letters'' 31 (19), 1174</ref><ref name="Humphries1980"/> and proposed the theory of magnetic insulation (in collaboration with E. Ott),<ref name="Lovelace1974">[https://aip.scitation.org/doi/abs/10.1063/1.1694876 "Theory of magnetic insulation"] R. V. Lovelace, E. Ott 1974, ''The Physics of Fluids'' 17 (6), 1263-1268</ref> which are used in laboratories.<ref name="Humphries1980"/><ref name="Davidson2001">[https://books.google.com/bookshl=en&lr=&id=5s02DwAAQBAJ&oi=fnd&pg=PR7&ots=mwf-8814Gk&sig=7PY8ElDjWc0gMYXmnA1AizmVLLA#v=onepage&q&f=false Book: “Physics of Nonneutral Plasmas”], Ronald C. Davidson 2001, Imperial College Press and World Scientific Publishing Co. Pte. Ltd (see page 2 and Ref. 22 on page 8)</ref>
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3. Please, substitute the phrase:
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:He invented a trapping mechanism of spin-polarized neutral gas, which has been experimentally demonstrated.<ref name="LovelaceEtAl1985">[https://ui.adsabs.harvard.edu/abs/1985Natur.318...30L/abstract "Magnetic confinement of a neutral gas"] R. V. E. Lovelace, C. Mehanian, T. J. Tommila, D. M. Lee 1985, ''Nature'' 318 (6041), 30-36.</ref><ref name=ThompsonEtAl1989>[https://www.osapublishing.org/josab/abstract.cfm?uri=josab-6-11-2227 "Storage rings for spin polarized hydrogen"] D. Thompson, R. V. E. Lovelace, D. M. Lee 1989, ''Journal of the Optical Society of America'', 611.</ref>{{Better source needed|date=January 2021}}
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with a new one:
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::Lovelace and collaborators invented a trapping mechanism of spin-polarized neutral gas, which has been experimentally demonstrated.<ref name="LovelaceEtAl1985">[https://ui.adsabs.harvard.edu/abs/1985Natur.318...30L/abstract "Magnetic confinement of a neutral gas"] R. V. E. Lovelace, C. Mehanian, T. J. Tommila, D. M. Lee 1985, ''Nature'' 318 (6041), 30-36.</ref><ref name="Ketterle2002">[https://journals.aps.org/rmp/pdf/10.1103/RevModPhys.74.1131 “Nobel lecture: When atoms behave as waves: Bose-Einstein condensation and the atom laser”] W. Ketterle 2002, Reviews of Modern Physics, 74, 1131-1151 (see page 1134)</ref>
   
On November 9 of 1968, Lovelace finished his computing program, and on the night from 9 to 10 of November he discovered that one of pulsars have a period of approximately 33 ms, which was the shortest period pulsar at that time.<ref name="Bondi1968"/>.
 
   
   
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[[User:Marina|Marina]] ([[User talk:Marina|talk]]) 03:44, 17 February 2021 (JST)
In 1968 (10 November), Lovelace discovered period <math>P\approx 33</math> ms of the [[Crab Pulsar]].<ref name = "Comella1969" /><ref name="Lovell1973">[https://ui.adsabs.harvard.edu/abs/1973ozjb.book.....L/abstract A book:`` Out of the Zenith. Jodrell Bank 1957-1970”] Sir. Bernard Lovell, 1973, London: Oxford University Press, pp 1-255 (see page159). As a graduate student working at [[Arecibo Observatory]], Lovelace developed a [[Fast Fourier transform]] program.<ref name="Lovelace1969">[https://ui.adsabs.harvard.edu/abs/1969Natur.222..231L/abstract "Digital Search Methods for Pulsars"] 1969, R. V. E. Lovelace, J. M. Sutton, E. E. Salpeter, ''Nature'' 222 (5190), 231-233.</ref>The special code named Gallop in [[Fortran]] was adapted to run on the Arecibo Observatory's [[CDC 3000 series|CDC 3200]] computer, which had a memory of 32,000 words of 24 bit length; the code was integer-based, using half-words of 12 bits, and was able to do the fast Fourier transform of N=16,384 signal samples; the 8192 signal power values were printed out on a folded raster scan; the signal to noise ratio increases as N increases; this was the largest value of N that could be handled by the Arecibo computer.<ref name=”LovelaceTaylor2014”>[On the Discovery of the Period of the Crab Nebula Pulsar https://astro.cornell.edu/sites/people/files/CrabPeriodDiscovery1.pdf ] R.V.E. Lovelace & G. Leonard Tyler, 2012, The Observatory, V. 132, p. 186</ref>. This program helped to separate the periodic pulsar signal from the noise, and one night he discovered the period of the [[Crab pulsar]], which is approximately 33 ms (33.09 ms).<ref name = "Comella1969">[https://ui.adsabs.harvard.edu/abs/1969Natur.221..453C/abstract "Crab nebula pulsar NP 0532"] 1969, J. M. Comella, H. D. Craft, R. V. E. Lovelace, J. M. Sutton, G. L. Tyler, ''Nature'' 221 (5179), 453-454.</ref><new ref=”Lang2913”>[Astrophysical Formulae
 
Space, Time, Matter and Cosmology] Kenneth R. Lang 2014, Publisher: Springer Berlin Heidelberg</ref>
 
   
   
<ref name = "Comella1969"/>
 
 
==References==
 
==References==
 
<references/>
 
<references/>

Latest revision as of 11:42, 27 February 2021

Welcome!

Add four "tilde"s at the end; they become your signature. T (talk) 14:08, 21 December 2020 (JST) T (talk) 14:08, 21 December 2020 (JST)

I am using this space for temporary files - modifications for wiki

26 February

Please, correct text in three places (numbered as 1, 2 and 3 below). New text has more references, it is more precise and more neutral. Also, I removed information which cannot be confirmed directly by references.

1. Instead of the phrase:

He also developed the theory of the stability of electron and ion rings,[1]Template:Better source needed which is used in current laboratory experiments on magnetic confinement fusion (for example at TAE Technologies in California).Template:Citation needed

Please, put the phrase below which is more precise:

Lovelace developed the theory of the stability of electron and ion rings,[1] which has been used in plasma fusion experiments at Cornell.[2]

2. Also, please substitute the old paragraph:

Lovelace proposed a new method of measuring magnetic fields,[3]Template:Better source needed developed a pioneering theory of intense ion beams in pulsed diodes, which are currently used in laboratories,[4]Template:Better source needed and proposed the theory of magnetic insulation, which is used in laboratories including at Sandia National Laboratories.[5]Template:Better source needed

with a new one:

Lovelace and collaborator (Prof. Sudan) developed a pioneering theory of intense ion beams in pulsed diodes,[4][2] and proposed the theory of magnetic insulation (in collaboration with E. Ott),[5] which are used in laboratories.[2][6]

3. Please, substitute the phrase:

He invented a trapping mechanism of spin-polarized neutral gas, which has been experimentally demonstrated.[7][8]Template:Better source needed

with a new one:

Lovelace and collaborators invented a trapping mechanism of spin-polarized neutral gas, which has been experimentally demonstrated.[7][9]


Marina (talk) 03:44, 17 February 2021 (JST)


References

  1. 1.0 1.1 "Low-frequency stability of astron configurations" R. V. E. Lovelace 1975, Physical Review Letters 35 (3), 162-164. Cite error: Invalid <ref> tag; name "Lovelace1975" defined multiple times with different content
  2. 2.0 2.1 2.2 "Intense pulsed ion beams for fusion applications" S. Humphries Jr. 1980, Nuclear Fusion 20, 1549-1612, see pp. 1560, 1572, 1589
  3. "System and method for sensing magnetic fields based on movement" Patent: United States Patent 6,639,403 A. Temnykh and R. V. E. Lovelace, October 28, 2003.
  4. 4.0 4.1 "Generation of intense ion beams in pulsed diodes". R. N. Sudan and R. V. Lovelace 1973, Physical Review Letters 31 (19), 1174. Cite error: Invalid <ref> tag; name "SudanLovelace1973" defined multiple times with different content
  5. 5.0 5.1 "Theory of magnetic insulation" R. V. Lovelace, E. Ott 1974, The Physics of Fluids 17 (6), 1263-1268. Cite error: Invalid <ref> tag; name "Lovelace1974" defined multiple times with different content
  6. Book: “Physics of Nonneutral Plasmas”, Ronald C. Davidson 2001, Imperial College Press and World Scientific Publishing Co. Pte. Ltd (see page 2 and Ref. 22 on page 8)
  7. 7.0 7.1 "Magnetic confinement of a neutral gas" R. V. E. Lovelace, C. Mehanian, T. J. Tommila, D. M. Lee 1985, Nature 318 (6041), 30-36. Cite error: Invalid <ref> tag; name "LovelaceEtAl1985" defined multiple times with different content
  8. "Storage rings for spin polarized hydrogen" D. Thompson, R. V. E. Lovelace, D. M. Lee 1989, Journal of the Optical Society of America, 611.
  9. “Nobel lecture: When atoms behave as waves: Bose-Einstein condensation and the atom laser” W. Ketterle 2002, Reviews of Modern Physics, 74, 1131-1151 (see page 1134)