Why do we have use-by dates on food and drink?  An unlikely answer
 
		
 spring-of-mathematics:  Mathematics and Traditional Cuisine The
 
		
 tomjogi:  “UNTITLED” “LE COUPLE” by BOM
 
		
 thar-cionn:  St. Stephen’s Green from the air, Dublin City
 
		
 science:  The solar eclipse of August 21, 1914, seen from 66
 
		
 yodiscrepo:  Así se hacen las multiplicaciones al estilo maya.