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19121

As many wives of depressed men will tell you, depressed husbands don’t just mope around. They are often angry, upset, unpredictable, and short-tempered. Kind words are often followed by angry words and periods of self-pity. The wife lives in a minefield and often finds it difficult to believe or accept positive comments. There is very […]

19120

I read with interest your article on determining the origin of emeralds by measuring oxygen isotopes. While there is great potential for legal and historical applications, I think that using this method to determine the source of gems for purely economic reasons is ludicrous. At least for myself, whether an emerald originated in Austria or […]

Corn Defenses: Bitten plants deploy gut-rotting enzyme

Some corn varieties that arose on the Caribbean island of Antigua defend themselves with chemical attacks that leave insect gut linings in tatters.