Monday, October 2, 2017

kashrut kosher - *Of* (עוֹף) in kashrus halacha


To find the kashrus status of an organism, we first need to correctly classify it as plant, animal, of, or fish, as each group has its own distinct requirements. E.g., animals need to chew cud and have cloven hooves, while fish need (fins and) scales.


What is the halachic definition of a of (עוֹף)?




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

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