fbpx
Wikipedia

Hans Grassmann

January 01, 1970

Hans Grassmann (Bamberg, 21 May 1960) is a German physicist, writer and entrepreneur, who teaches and works in Italy. Grassmann is the author of four books and more than 250 scientific publications, and is the founder and managing director of the research company Isomorph srl.

His main contributions to physics include the development of a (Tl) calorimeter with a photodiode; developing the analysis of asymmetry in the production of the W particle; a contribution to the discovery of the top quark, the development of a physics theory of information; the design and development of a wind turbine with an external duct; and the realization of the linear mirror for the concentration of solar energy. Grassmann has worked in Italy since 1988.

Life and work edit

Study of physics edit

From 1979 to 1984, Grassmann studied physics at the University of Erlangen and the University of Hamburg. For his laurea thesis, he developed a detection method for high energy photons using a scintillating crystal (CsI(Tl)) calorimeter with photodiode readout. Advanced scientific experiments make use of this technology, including the Crystal-Barrel, the BaBar, the CLEO, the Belle experiments and the Glast satellite.

From 1984 to 1988, Grassmann was part of the UA1 experiment at CERN in Geneva, where he wrote his PhD thesis.

From 1987 to 1999, Grassmann worked with the CDF collaboration at the Tevatron collider in the Fermi National Laboratory (Fermilab), close to Chicago and at the Superconducting Super Collider laboratory (Dallas).

In 1988 with his student, S. Leone, he developed the study of the asymmetry in production and decay of the W-boson at the Tevatron proton–antiproton collider. W bosons are predominantly produced in collisions of valence quarks; therefore, one can determine the kinematic properties of the up and down quarks in the proton and antiproton from the observation of W production. By analyzing the relative difference in the production of W+ and W− particles, one can substantially reduce the effects of systematic uncertainties in the experimental device.[1][2]

Since 1988, Grassmann has developed a method for detecting the top quark.[3] The method makes use of the different kinematic properties of production and decay of top quark particles and background events, such as the production of W particles together with hadronic jets. In 1994, this analysis was successfully applied by Grassmann, G. Bellettini and M. Cobal. The top quark was observed in Tevatron collider data.[4] These results were confirmed when the analysis was repeated on a larger data sample.[5]

After the top quark discovery, Grassmann worked on a connection between the classic information theory of Claude Shannon, Gregory Chaitin and Andrey Kolmogorov et al. and physics.[6] From work done by Leó Szilárd, Rolf Landauer and Charles H. Bennett, there is a connection between physics and information theory. Storing or deleting one bit of information dissipates energy;[7][8][9] however, neither classic information theory nor algorithmic information theory contain any physics variables. The variable entropy used in information theory is not a state function; therefore, it is not the thermodynamic entropy used in physics. Grassmann made use of existing and established concepts, such as message, amount of information or complexity, but set them in a new mathematical framework. His approach is based on vector algebra or on Boolean algebra instead of probability theory.

Renewable Energies edit

Grassmann also developed an approach for studying shrouded wind turbines.[10][11][12]

 
The Linear mirror

In 2006 Isomorph undertook the development of a system of mirrors - the so-called Linear mirror - for the concentration of solar energy. This system is a very simple and therefore inexpensive structure, which allows to create a full-scale prototype without the need of outside partners. In 'October 2008, the Linear mirror received its first award from the Italian Physical Society, which honors Alessandro Prest, an employee of the Isomorph, for the presentation of the project.[13]

The mirror came into operation for the first time in autumn 2008, fulfilling all the expectations.[14] In July 2010 the first Linear mirror was installed by the town of Pontebba[15] to provide thermal energy to the local kindergarten. In the same year the town of Pontebba successfully participated to the National contest for the election of the most virtuous municipalities.[16] In April 2011 Hans Grassmann has received the "Nuclear-Free Future Award, with the motivation that the Linear mirror can be able to contribute to the replacement of nuclear power.[17]

In May 2012 the Linear mirror received the Solar keymark certificate by CERTCO DIN (DIN EN 12795-1:2006-06 and DIN EN 12795-2:2006-06).[18] Tests for the Solar Keymark were carried out by the Fraunhofer Institute ISE Freiburg.[19]

Entrepreneurship edit

In 2004, Grassmann founded Isomorph, which creates scientific concepts, procedures and devices based on physics research. Isomorph's research is independent of the scientific-administrative complex.

Isomorph developed an innovative concentrating mirror system to make economic use of solar energy. It is a simple system and cheap to produce.[20][21]

Books edit

Grassmann has explained physics to the general public in books and newspaper articles, noting that "everybody can understand physics. What cannot be understood is not physics."[22] His books about the relationship between science and society are available in several translations.

  • Grassmann, H.: Das Top Quark, Picasso und Mercedes Benz – oder Was ist Physik?, Rowohlt Berlin, 1997, ISBN 3-87134-328-5.
  • Grassmann, H.: Alles Quark? Ein Physikbuch, Rowohlt Berlin, Berlin, 2000, ISBN 3-87134-362-5.
  • Grassmann, H.: Das Denken und seine Zukunft – von der Eigenart des Menschen, Hoffman und Campe, Hamburg, 2001, ISBN 3-455-09333-7.
  • Grassmann, H.: Ahnung von der Materie – Physik für alle., Dumont, 2008, ISBN 978-3-8321-8082-9.

References edit

  1. ^ S. Leone (1994). "Lepton charge asymmetry from W± → l±ν at the Tevatron collider". Retrieved 2009-02-10.[permanent dead link]
  2. ^ F. Abe; et al. (1992). "Lepton asymmetry in W-boson decays from pp collisions at √s = 1.8 TeV". Physical Review Letters. 68 (10): 1458–1462. Bibcode:1992PhRvL..68.1458A. doi:10.1103/PhysRevLett.68.1458. PMID 10045137.
  3. ^ M. Cobal; H. Grassmann; S. Leone (1994). "On exploiting the single-lepton event structure for the top search". Il Nuovo Cimento A. 107 (1): 75. Bibcode:1994NCimA.107...75C. doi:10.1007/BF02813074. S2CID 119549777.
  4. ^ M. Cobal; H. Grassmann; G. Bellettini (1994). "Search for the top quark at CDF: Studying the structure of events with one lepton, a neutrino and jets". Retrieved 2009-02-10.
  5. ^ F. Abe; et al. (1995). "Identification of Top Quark using kinematic variables". Physical Review D. 52 (5): R2605–R2609. Bibcode:1995PhRvD..52.2605A. doi:10.1103/PhysRevD.52.R2605. PMID 10019541.
  6. ^ H. Grassmann. "On the mathematical structure of messages and message processing systems". Retrieved 2009-02-10. [dead link]
  7. ^ L. Szilárd (1929). "Über die Entropieverminderung in einem thermodynamischen System bei Eingriffen intelligenter Wesen". Zeitschrift für Physik. 53 (11–12): 840–856. Bibcode:1929ZPhy...53..840S. doi:10.1007/BF01341281. S2CID 122038206.
  8. ^ R. Landauer (1961). "Irreversibility and heat generation in the computing process". IBM Journal of Research and Development. 5 (3): 183–191. doi:10.1147/rd.53.0183.
  9. ^ C. H. Bennett (1982). "The Thermodynamics of Computation – A Review". International Journal of Theoretical Physics. 21 (12): 905–940. Bibcode:1982IJTP...21..905B. doi:10.1007/BF02084158. S2CID 17471991.
  10. ^ F. Bet; H. Grassmann (2003). "Upgrading conventional wind turbines". Renewable Energy. 28: 71–78. doi:10.1016/S0960-1481(01)00187-2.
  11. ^ H. Grassmann; F. Bet; G. Cabras; M. Ceschia; D. Cobai; C. DelPapa (2003). "A partially static turbine—first experimental results". Renewable Energy. 28 (11): 1779–1785. doi:10.1016/S0960-1481(03)00061-2.
  12. ^ H. Grassmann; F. Bet; M. Ceschia; M. L. Ganis (2004). "On the physics of partially static turbines". Renewable Energy. 29 (4): 491–499. CiteSeerX 10.1.1.542.5161. doi:10.1016/j.renene.2003.07.008.
  13. ^ Società Italiana di Fisica. "Migliori comunicazioni 2008". Retrieved 10 January 2013.
  14. ^ Isomorph srl. . Archived from the original on 22 July 2011. Retrieved 10 January 2013.
  15. ^ http://www.comune.pontebba.ud.it/Progetto-specchio-lineare.3774.0.html?&L=0%7Ctitolo=Progetto specchio lineare)
  16. ^ "Ass. dei Comuni Virtuosi". Comunivirtuosi.org. Retrieved 2013-09-14.
  17. ^ . Nuclear-free.com. Archived from the original on 2013-07-24. Retrieved 2013-09-14.
  18. ^ . Archived from the original on 2013-08-17. Retrieved 2013-01-02.{{cite web}}: CS1 maint: archived copy as title (link)
  19. ^ http://www.isomorph.it/solutions/renewable-energies/solar-thermal/resolveuid/1da56c7c5ff66e2ca6b054dd73d937e0[permanent dead link]
  20. ^ Isomorph srl. . Archived from the original on 2011-07-22. Retrieved 2009-02-10.
  21. ^ A. Prest, H. Grassmann, "The linear mirror for solar energy exploitation", submitted to Nuovo Cimento Letters on 30-12-2008
  22. ^ Grassmann, H.: Ahnung von der Materie – Physik für alle., Dumont, 2008, ISBN 978-3-8321-8082-9

External links edit

  • University of Udine (in Italian)
  • Contributions to physics

January 01, 1970
hans, grassmann, bamberg, 1960, german, physicist, writer, entrepreneur, teaches, works, italy, grassmann, author, four, books, more, than, scientific, publications, founder, managing, director, research, company, isomorph, main, contributions, physics, includ. Hans Grassmann Bamberg 21 May 1960 is a German physicist writer and entrepreneur who teaches and works in Italy Grassmann is the author of four books and more than 250 scientific publications and is the founder and managing director of the research company Isomorph srl His main contributions to physics include the development of a Tl calorimeter with a photodiode developing the analysis of asymmetry in the production of the W particle a contribution to the discovery of the top quark the development of a physics theory of information the design and development of a wind turbine with an external duct and the realization of the linear mirror for the concentration of solar energy Grassmann has worked in Italy since 1988 Contents 1 Life and work 1 1 Study of physics 1 2 Renewable Energies 1 3 Entrepreneurship 1 4 Books 2 References 3 External linksLife and work editStudy of physics edit From 1979 to 1984 Grassmann studied physics at the University of Erlangen and the University of Hamburg For his laurea thesis he developed a detection method for high energy photons using a scintillating crystal CsI Tl calorimeter with photodiode readout Advanced scientific experiments make use of this technology including the Crystal Barrel the BaBar the CLEO the Belle experiments and the Glast satellite From 1984 to 1988 Grassmann was part of the UA1 experiment at CERN in Geneva where he wrote his PhD thesis From 1987 to 1999 Grassmann worked with the CDF collaboration at the Tevatron collider in the Fermi National Laboratory Fermilab close to Chicago and at the Superconducting Super Collider laboratory Dallas In 1988 with his student S Leone he developed the study of the asymmetry in production and decay of the W boson at the Tevatron proton antiproton collider W bosons are predominantly produced in collisions of valence quarks therefore one can determine the kinematic properties of the up and down quarks in the proton and antiproton from the observation of W production By analyzing the relative difference in the production of W and W particles one can substantially reduce the effects of systematic uncertainties in the experimental device 1 2 Since 1988 Grassmann has developed a method for detecting the top quark 3 The method makes use of the different kinematic properties of production and decay of top quark particles and background events such as the production of W particles together with hadronic jets In 1994 this analysis was successfully applied by Grassmann G Bellettini and M Cobal The top quark was observed in Tevatron collider data 4 These results were confirmed when the analysis was repeated on a larger data sample 5 After the top quark discovery Grassmann worked on a connection between the classic information theory of Claude Shannon Gregory Chaitin and Andrey Kolmogorov et al and physics 6 From work done by Leo Szilard Rolf Landauer and Charles H Bennett there is a connection between physics and information theory Storing or deleting one bit of information dissipates energy 7 8 9 however neither classic information theory nor algorithmic information theory contain any physics variables The variable entropy used in information theory is not a state function therefore it is not the thermodynamic entropy used in physics Grassmann made use of existing and established concepts such as message amount of information or complexity but set them in a new mathematical framework His approach is based on vector algebra or on Boolean algebra instead of probability theory Renewable Energies edit Grassmann also developed an approach for studying shrouded wind turbines 10 11 12 nbsp The Linear mirror In 2006 Isomorph undertook the development of a system of mirrors the so called Linear mirror for the concentration of solar energy This system is a very simple and therefore inexpensive structure which allows to create a full scale prototype without the need of outside partners In October 2008 the Linear mirror received its first award from the Italian Physical Society which honors Alessandro Prest an employee of the Isomorph for the presentation of the project 13 The mirror came into operation for the first time in autumn 2008 fulfilling all the expectations 14 In July 2010 the first Linear mirror was installed by the town of Pontebba 15 to provide thermal energy to the local kindergarten In the same year the town of Pontebba successfully participated to the National contest for the election of the most virtuous municipalities 16 In April 2011 Hans Grassmann has received the Nuclear Free Future Award with the motivation that the Linear mirror can be able to contribute to the replacement of nuclear power 17 In May 2012 the Linear mirror received the Solar keymark certificate by CERTCO DIN DIN EN 12795 1 2006 06 and DIN EN 12795 2 2006 06 18 Tests for the Solar Keymark were carried out by the Fraunhofer Institute ISE Freiburg 19 Entrepreneurship edit In 2004 Grassmann founded Isomorph which creates scientific concepts procedures and devices based on physics research Isomorph s research is independent of the scientific administrative complex Isomorph developed an innovative concentrating mirror system to make economic use of solar energy It is a simple system and cheap to produce 20 21 Books edit Grassmann has explained physics to the general public in books and newspaper articles noting that everybody can understand physics What cannot be understood is not physics 22 His books about the relationship between science and society are available in several translations Grassmann H Das Top Quark Picasso und Mercedes Benz oder Was ist Physik Rowohlt Berlin 1997 ISBN 3 87134 328 5 Grassmann H Alles Quark Ein Physikbuch Rowohlt Berlin Berlin 2000 ISBN 3 87134 362 5 Grassmann H Das Denken und seine Zukunft von der Eigenart des Menschen Hoffman und Campe Hamburg 2001 ISBN 3 455 09333 7 Grassmann H Ahnung von der Materie Physik fur alle Dumont 2008 ISBN 978 3 8321 8082 9 References edit S Leone 1994 Lepton charge asymmetry from W l n at the Tevatron collider Retrieved 2009 02 10 permanent dead link F Abe et al 1992 Lepton asymmetry in W boson decays from p p collisions at s 1 8 TeV Physical Review Letters 68 10 1458 1462 Bibcode 1992PhRvL 68 1458A doi 10 1103 PhysRevLett 68 1458 PMID 10045137 M Cobal H Grassmann S Leone 1994 On exploiting the single lepton event structure for the top search Il Nuovo Cimento A 107 1 75 Bibcode 1994NCimA 107 75C doi 10 1007 BF02813074 S2CID 119549777 M Cobal H Grassmann G Bellettini 1994 Search for the top quark at CDF Studying the structure of events with one lepton a neutrino and jets Retrieved 2009 02 10 F Abe et al 1995 Identification of Top Quark using kinematic variables Physical Review D 52 5 R2605 R2609 Bibcode 1995PhRvD 52 2605A doi 10 1103 PhysRevD 52 R2605 PMID 10019541 H Grassmann On the mathematical structure of messages and message processing systems Retrieved 2009 02 10 dead link L Szilard 1929 Uber die Entropieverminderung in einem thermodynamischen System bei Eingriffen intelligenter Wesen Zeitschrift fur Physik 53 11 12 840 856 Bibcode 1929ZPhy 53 840S doi 10 1007 BF01341281 S2CID 122038206 R Landauer 1961 Irreversibility and heat generation in the computing process IBM Journal of Research and Development 5 3 183 191 doi 10 1147 rd 53 0183 C H Bennett 1982 The Thermodynamics of Computation A Review International Journal of Theoretical Physics 21 12 905 940 Bibcode 1982IJTP 21 905B doi 10 1007 BF02084158 S2CID 17471991 F Bet H Grassmann 2003 Upgrading conventional wind turbines Renewable Energy 28 71 78 doi 10 1016 S0960 1481 01 00187 2 H Grassmann F Bet G Cabras M Ceschia D Cobai C DelPapa 2003 A partially static turbine first experimental results Renewable Energy 28 11 1779 1785 doi 10 1016 S0960 1481 03 00061 2 H Grassmann F Bet M Ceschia M L Ganis 2004 On the physics of partially static turbines Renewable Energy 29 4 491 499 CiteSeerX 10 1 1 542 5161 doi 10 1016 j renene 2003 07 008 Societa Italiana di Fisica Migliori comunicazioni 2008 Retrieved 10 January 2013 Isomorph srl Measurement of the power transfer in a Linear mirror with 20 mirror elements Archived from the original on 22 July 2011 Retrieved 10 January 2013 http www comune pontebba ud it Progetto specchio lineare 3774 0 html amp L 0 7Ctitolo Progetto specchio lineare Ass dei Comuni Virtuosi Comunivirtuosi org Retrieved 2013 09 14 Nuclear Free Future Award Announcements Nuclear free com Archived from the original on 2013 07 24 Retrieved 2013 09 14 Archived copy Archived from the original on 2013 08 17 Retrieved 2013 01 02 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link http www isomorph it solutions renewable energies solar thermal resolveuid 1da56c7c5ff66e2ca6b054dd73d937e0 permanent dead link Isomorph srl Measurement of the power transfer in a Linear mirror with 20 mirror elements Archived from the original on 2011 07 22 Retrieved 2009 02 10 A Prest H Grassmann The linear mirror for solar energy exploitation submitted to Nuovo Cimento Letters on 30 12 2008 Grassmann H Ahnung von der Materie Physik fur alle Dumont 2008 ISBN 978 3 8321 8082 9External links editUniversity of Udine in Italian Contributions to physics Grassman receives the Nuclear Free Future Award Retrieved from https en wikipedia org w index php title Hans Grassmann amp oldid 1113193406, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.