kramers antoon (2 Ergebnisse)

Soft cover. Zustand: Good. Photographs, Graphs (illustrator). First Separate Edition. Pp355-365 Extracted From The Proceedings, In Tan Wrappers Printed In Black, A Publisher's Offprint. Covers Worn And Browned, Tears At Spine Edges And 1/2" Chips At Top And Bottom Of Spine Panel. Pencil Ownership Name Of Hendrik Antoon Kramers, Dutch Physicist (Who Worked Primarily In Studies Of Magnetism), At Top Of Front Cover, As Was Kramers' Custom With His Library. Sir James Alfred Ewing Kcb (27 March 1855 ? 7 January 1935) Was A Scottish Physicist And Engineer, Best Known For His Work On The Magnetic Properties Of Metals And, In Particular, For His Discovery Of, And Coinage Of The Word, Hysteresis. It Was Said Of Ewing That He Was 'Careful At All Times Of His Appearance, His Suits Were Mostly Grey, Added To Which He Generally Wore - Whatever The Fashion - A White Piqué Stripe To His Waistcoat, A Mauve Shirt, A White Butterfly Collar And A Dark Blue Bow Tie With White Spots.' He Was Regarded As Brilliant And Successful, But Was Conscious Of His Dignity And Position. On Appointment To Head The Newly Created Admiralty Codebreaking Department, The Director Of Naval Intelligence, Henry Oliver, Described Him As 'Too Distinguished A Man To Be Placed Officially Under The Orders Of The Director Of Intelligence Or Chief Of Staff'. His First Wife, Annie, Was An American, A Great Great Niece Of George Washington. In 1890, Ewing Took Up The Post Of Professor Of Mechanism And Applied Mechanics At The University Of Cambridge, Initially At Trinity College, Though He Later Moved To King's College. At Cambridge, Ewing's Research Into The Magnetisation Of Metals Led Him To Criticise The Conventional Account Of Wilhelm Weber. In 1890, He Observed That Magnetisation Lagged Behind An Applied Alternating Current. He Described The Characteristic Hysteresis Curve And Speculated That Individual Molecules Act As Magnets, Resisting Changes In Magnetising Potential. (Note: According To The Book Sir Alfred Ewing: A Pioneer In Physics And Engineering (1946) By Professor Bates, The Discovery Of Magnetic Hysteresis Probably Occurred Before Ewing. However, Ewing Re-Discovered It, Studied It In Detail And Coined The Word Hysteresis). Ewing Also Researched Into The Crystalline Structure Of Metals And, In 1903, Was The First To Propose That Fatigue Failures Originated In Microscopic Defects Or Slip Bands In Materials. In 1895 He Was Awarded The Gold Medal Of The Royal Society For His Work On Magnetic Induction In Iron And Other Metals. Ewing Was A Close Friend Of Sir Charles Algernon Parsons And Collaborated With Him On The Development Of The Steam Turbine [And He Later Married Parsons' Surviving Daughter]. During This Time, Ewing Published The Steam Engine And Other Heat Engines Around This Time. In 1897 He Took Part In The Sea-Trials Of The Experimental Vessel Turbinia, Which Set A New Speed Record Of 35 Knots. During World War I, From 1914 To May 1917, Ewing Managed Room 40, The Admiralty Intelligence Department Of Cryptanalysis, Responsible Predominantly For The Decryption Of Intercepted German Naval Messages. In This Capacity, He Achieved Considerable Fame In The Popular Press When Room 40 Deciphered The Zimmermann Telegram In 1917 (Which Suggested A German Plot To Assist Mexico In Recovering The Southwestern United States). The Publication Of The Zimmermann Telegram Is Generally Credited As The Trigger Event Which Brought American Into The Great War. In May 1916 Ewing Accepted An Invitation To Become Principal Of The University Of Edinburgh, In The Course Of Which He Instituted An Extensive Series Of Effective Reforms And Which He Held Until His Retirement In 1929. In 1927 He Gave A Lecture To The Edinburgh Philosophical Institution Which Contained The First Semi-Official Disclosure Of The Work Done By Room 40. Worldcat Shows Only One Institutional Holding, In Scotland.

Soft cover. Zustand: Good. 1st Edition. Pp 93-99. Offprint Extracted From The Journal Avro, In Plain Card Wrappers. Covers Browned; 1/4" Crease At Top Free Corner Edge. We Find No Institutional Holding Except For The Journal; This Offprint From The Library One Of Kramers' Students And Later Assistant, Jan Korringa.