William Henry Bragg
18621942
British scientist who shared a Nobel Prize with his son for X-ray crystallography and developed wartime hydrophone technology
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ফিল্টার প্রয়োগ করে জীবনে সব দেখুন18881942
Cuban chess player, diplomat, and non-fiction writer who became the third world chess champion, renowned for his endgame skill and speed of play
