SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »MAGNITOGRAF
MAGNITOGRAF (az yun. magnetis — magnit va …graf), asbobest, ki muttasil tagyiryobii maydoni magnitii Zachii (varnasiyai magniti)-ro sabt mekunad. Az varnometrhoi magniti va tajhizoti sabtkunanda (registrator) iborat ast. Magnitograf soddatarin az fotoregnetrator, rushnoidihak va se varnometri optiki-mekhaniki iborat meboshad. Har yak variometr oina dorad. Nuri rushnoi az oina aks gashta, …
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