Helen Megaw

Helen Dick Megaw (1 Yuni 1907 - 26 Fabrairu 2002) A. M. Glazer, "Megaw, Helen Dick (1907–2002)", Oxford Dictionary of National Biography  ta kasance X-ray crystallography">mai rubutun kirista na Irish wanda ya kasance majagaba a cikin X-ray crystallography .  Ta yi ma'auni na girman tantanin halitta na kankara kuma ta kafa tsarin lu'ulu'u na Perovskite.

 Ilimi da aiki 
An haifi Megaw a Dublin ga malamin lissafi Annie McElderry (1874-1968) da alƙali Robert Megaw, masu digiri biyu na Jami'ar Sarauniya ta Belfast waɗanda dukansu sun fito ne daga Ballymoney, Antrim .  Ta yi karatu da farko a Kwalejin Alexandra a Dublin, sannan a takaice a Kwalejiyar Methodist a Belfast bayan iyalin (ciki har da ƙaramin ɗan'uwa John, daga baya babban alƙali) suka koma can a 1921, kuma a ƙarshe a Makarantar Roedean a Ingila. Yayinda yake a makaranta, Megaw ya karanta Bragg's X-rays da Crystal Structure .  Ta yi shekara guda a Jami'ar Sarauniya, Belfast  kafin ta koma Kwalejin Girton, Cambridge don karatun Kimiyya ta Halitta a shekarar 1926. Ta kammala karatu a 1930 kuma ta kasance ɗaliba ce mai bincike a cikin crystallography a karkashin J. D. Bernal .  Kwarewar farko ta Megaw ita ce tsarin kankara, kuma an ba ta lambar yabo ta PhD a 1934,  kuma Girton ta ba ta kyautar binciken Hertha Ayrton wanda ta yi amfani da ita don karatu a Vienna a 1934-1935 a ƙarƙashin Hermann Francis Mark . A cikin 1935 Megaw ya buga tare da Bernal wata hanya mai tasiri don gyara matsayin kwayar hydrogen da aka sani da samfurin Bernal-Megaw .  Ta shafe shekara ta 1935-1936 a Oxford tare da Francis Simon  sannan ta shafe shekaru da yawa a matsayin malami a makaranta kafin ta zama mai rubutun masana'antu tare da Philips Lamps a London a 1943. Ta hanyar aiki a Philips a kan titanate na barium ne Megaw ta fara aiki a kan tsarin lu'ulu'u na perovskite, wanda ta kafa kanta a matsayin sanannen masani. A shekara ta 1945 Megaw ya koma aiki tare da Bernal, yanzu a Kwalejin Birkbeck a Landan, na shekara guda kafin ya dauki matsayi a Laboratory na Cavendish a Cambridge. Ta zama Fellow da Darakta na Nazarin a Girton . Megaw ta yi ritaya a 1972 kuma ta raba lokacinta tsakanin Cambridge da Ballycastle, County Antrim, inda ta mutu a shekara ta 2002.

Littafinta na farko, Ferroelectricity in Crystals, an buga shi a shekara ta 1957.  Littafin na biyu, Crystal Structures: a Working Approach, ya biyo baya a 1973.

Bayan tattaunawa da Mark Hartland Thomas a cikin 1949 (babban jami'in masana'antu na Majalisar Masana'antu), an nada Megaw a matsayin mai ba da shawara na kimiyya ga Ƙungiyar Bikin Bikin Burtaniya, 1951. Ta kuma zama babbar mai motsa kimiyya a cikin rukuni wanda ya sanya hotuna na crystallographic a hannun masu zanen masana'antu don su yi amfani da su a cikin samfuran da aka nuna a bikin kuma a wasu lokuta bayan haka. A cikin 2019, an nuna wasu samfurori na masana'anta na Megaw a Gidan Tarihin Kimiyya, London a matsayin wani ɓangare na nune-nunen "The Art of Innovation"  wanda ya bincika alaƙar da ke tsakanin fasaha da kimiyya.

 Kyauta da girmamawa 
Don nuna godiya ga aikinta wajen tantance tsarin lu'ulu'u na kankara, an sanya mata suna Tsibirin Megaw a Kudancin Tekun. Megawite (CaSnO3), ma'adinai na rukuni na perovskite, an kuma sanya masa suna.

A shekara ta 1976, Megaw ya ba da tarin samfuran masana'antu daga Bikin Burtaniya tare da littafin jagora na tunawa ga Gidan Tarihin Kimiyya a London.

A shekara ta 1989, Megaw ta zama mace ta farko da ta karbi lambar yabo ta Roebling na Mineralogical Society of America . Tana da digirin digirin girmamawa daga Jami'o'in Cambridge da Jami'ar Sarauniya ta Belfast . 

 Bayanan littattafai 






 Manazarta 

 Haɗin waje 

 Tarin samfurori na Megaw na masana'antu da aka yi wahayi zuwa gare su ta hanyar crystallography daga Festival of Britain; yanzu a Gidan Tarihin Kimiyya, London
 "Littafin Tunawa na Tsarin Crystal" daga Bikin Burtaniya

Rukuni:Mutuwan 2002
Rukuni:Haifaffun 1907
Rukuni:Mata