Ellyn Siftar leads a potato battery activity Tuesday, Jan. 13, 2026, during 4-H at the Library at Parkland Community Library in South Whitehall Township. The program allows children to explore a range ...
If Ellen Swallow Richards, industrial chemist, sanitarian, efficiency expert, science educator, public health economist, nutritionist, proponent of women’s education (and more) had been born a man, ...
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