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POLISH ACADEMY OF SCIENCES WARSAW INSTOF PHYSICSBiblio.com

Proceedings of the International Conference "Quantum Optics IV" jaszowiec Poland June 17-24 1997. Volume 93 Number 1

Burgers, J [ Johannes / Jam] M (Martinus) (1895-1981) [With Ownership Signature Of H A Kramers]Biblio.com

Het Atoommodel Van Rutherford-Bohr

1918032078Haarlem: De Erven Loosjes 1918. 1st Edition . Soft cover. Good. Xx 265 Pp. Dissertation In Beige Wrappers Printed In Black. Ownership Signature Of H. A. Kramers On Front Cover. Worn Backstrip Perished Partly Unbound But Complete No Other Marks. In 1914 Burgers Entered The University Of Leiden Where He Came To Know Hendrik Lorentz Kamerlingh Onnes Albert Einstein And Niels Bohr And Was In A Group Of Students Of P. T. Ehrenfest That Included D. Coster H. A. Kramers And D. J. Struik. BurgersThe First Of Ehrenfest's Students In Leiden To Complete A Phd Thesis 1918 Wrote His Dissertation On The Rutherford-Bohr Model Of The Atom Completingehrenfest's Work On The Connection Between The Bohr-Sommerfeld Quantization Rules And The Adiabatic Invariants Of Classical Mechanics. Later While At Delft Burgers Quickly Became One Of The World's Leading Authorities On Fluid Dynamics. His First Work Was Devoted To Oseen's Theory Of Flow At Low Reynolds Numbers And Its Connection With Ludwig Prandtl's Work On Airfoils. In 1921 He Met Theodore Von Karman With Whom He Had A Long And Close Professional And Personal Association That Stimulated His Work On Turbulence. In This Field He Was A Pioneer In Using The Hot Wire Anemometer To Probe Velocity Fluctuations In Turbulent Flows. His Work On The Theory Of Turbulence Was Devoted In Large Part To Developing A Statistical Theory Of Turbulence And To Treating Theoretical Models Of Turbulent Flow. In This Connection He Studied What Has Now Become Known As The Burgers Equation Which Is A One-Dimensional Nonlinear Partial Differential Equation Similar In Structure To The Navier-Stokes Equation For The Hydrodynamic Velocity Field. Burgers Collaborated With His Brother In Work On Dislocation In Crystal Lattices; In 1939 He Introduced The Burgers Vector Which Is A Measure Of The Strength Of A Dislocation In A Lattice. He Also Studied The Fluid Dynamics Of Dilute Polymer Solutions And Wrote Some Of The Fundamental Papers On The Intrinsic Viscosity Of Suspensions. This Work Like That On Turbulence And On Dislocations Provided The Foundation For Much Of The Recent Work On This Topic. In 1955 At Age 60 Burgers Left Delft To Join The Faculty Of The University Of Maryland. There He Developed His Interest In The Relation Of The Boltzmann Equation To The Equations Of Fluid Dynamics. <br/> <br/> De Erven Loosjes paperback

Arroyo Seco Books · États-Unis156,71 $US≈ 132,59 €

Fokker, A D [Adriaan Daniel)Biblio.com

Filosofie In De Natuurkunde : Voordrachten In Teylers Stichting

1949053568'S-Gravenhage / The Hague: Martinus Nijhoff 1949. 1st Edition . Soft cover. Near Fine. Diagrams. Offprint Pp 65-132. First Edition. Near Fine Aging Around Edges Of Covers. Adriaan Daniël Fokker 1887 -1972 Was A Dutch Physicist. He Worked In The Fields Of Special Relativity And Statistical Mechanics. Fokker Was Born In Buitenzorg Dutch East Indies Now Bogor Indonesia. He Was A Cousin Of The Aeronautical Engineer Anthony Fokker. Fokker Studied Mining Engineering At The Delft University Of Technology And Physics At The University Of Leiden With Hendrik Lorentz Where He Earned His Doctorate In 1913. He Continued His Studies With Albert Einstein Ernest Rutherford And William Bragg. In His 1913 Thesis He Derived The Fokker-Planck Equation Along With Max Planck. After His Military Service During World War I He Returned To Leiden As Lorentz' And Ehrenfest's Assistant. Fokker Became A Physics Teacher At The Gymnasium Of Delft After 1918 And Was Appointed In 1923 As The First Professor Of Applied Physics At The Technische Hoogeschool Delft Today Delft University Of Technology. In 1928 Fokker Succeeded Hendrik Lorentz As Director Of Research At Teylers Museum In Haarlem. Fokker Made Several Contributions To Special Relativity And Some Less Well-Known Contributions To General Relativity Particularly In The Area Of Geodetic Precession The Phenomena Of Precession Of A Freely Falling Gyroscope In A Gravitational Field.Fokker Began To Study Music Theory During The Second World War When The University Of Leiden Was Closed; Partly This Was Due To A Desire To Convince The Nazis He Would Be Of No Use To The War Effort And Partly It Was A Response To Reading The Work Of Christiaan Huygens On The 31 Equal Temperament. In 1938 Fokker - Along With Dirk Coster And Otto Hahn - Helped Jewish-Born Physicist Lise Meitner Escape From Austria To The Netherlands. "Fokker And Coster Both Knew That University Positions Were Virtually Unavailable For Foreigners. Laboratory Space Was Not A Problem However Either In Groningen Or Haarlem. 'Perhaps We Can Tap Colleagues For Regular Contributions' Coster Suggested. Fokker Set A Goal Of F.20000 Enough To Support Meitner For Five Years And Immediately Began Contacting Colleagues For Advice And Donations." They Were Unsuccessful In Obtaining Funding But Fokker Succeeded In Getting Official Permission For Meitner To Leave Although He Was Unable To Telegraph That To Her Due To Secrecy. She Escaped Barely In Time To Evade Arrest. The Year 1942 Consequently Marked A Turning Point In His Life; After Then He Wrote Many Pieces In 31-Equal Which Are Notable For Using The 7Th Harmonic As A Consonant Interval 31-Equal Has A Much Better Approximation Of The 7Th Harmonic Than The Ubiquitous 12-Equal. He Also Made Notable Contributions To Music Theory Such As The Fokker Periodicity Block. <br/> <br/> Martinus Nijhoff paperback

Arroyo Seco Books · États-Unis156,71 $US≈ 132,59 €