RT @snezanalawrence: Blaise Pascal (1623-1662) gained #otd in 1649 by royal degree, a monopoly for his Pascaline, mechanical calculator he invented in 1642 to help his father (tax collector). There are currently 9 such machines around museums in Europe, … https://t.co/NDzwG2D4Z5
Irmgard Flügge-Lotz (1903-1974) worked on numerical methods for solving differential equations, especially in fluids, died 22 May https://t.co/5u4TsyOEiS
George Jeffery (1891-1957) worked on hydrodynamics, viscous liquids, elasticity and general relativity, produced exact solutions to Einstein's field equations, born 9 May https://t.co/qrlXIxFPmg