Easier Flashlight Mod Increases Run Time 3.6X [1]
o o o
Fascinating! How a Canadian history buff (may have) solved a Second World War ‘pigeon-code mystery [2]. (Thanks to Karl H. for the link.)
o o o
How to Make Batteries From Spare Change [3]
o o o
Gregg P. sent: Search of DNA Sequences Reveals Full Identities [4]. In First World nations, law enforcement agencies are busily building huge libraries of blood and tissue samples (cheek swabs.) If eugenics ever regains popularity, or if “genetic profiling” for a family criminal tendency or psychological abnormality ever emerges, then this is very frightening news.