Gwyddonydd oedd Jessica Duncan Piazzi Smyth (1815 – 24 Mawrth 1896), a gaiff ei hadnabod yn bennaf fel daearegwr.
Manylion personol
Ganed Jessica Duncan Piazzi Smyth yn 1815.
Gyrfa
Aelodaeth o sefydliadau addysgol
Aelodaeth o grwpiau a chymdeithasau
Gweler hefyd
Cyfeiriadau
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