You are whatever your hair says you are, and that’s not a statement about style. Your hair stores within it a chemical record of what you’ve been eating (and you are, as we all know, what you eat). A new laser-based method of chemical analysis can produce an hour-by-hour record of what you’ve been eating from a single strand of hair, making your ‘do into a detailed forensic record.
Dutch scientists have come up with a DNA test that can determine a person's natural hair color, using no more than a drop of blood or saliva. They say their method can predict hair color with up to 90 percent accuracy, helping forensic investigators identify an unknown person's characteristics.
Apparently these guys are unfamiliar with hair dye.
The world's tiniest chess board and a pea-sized barber shop are the winners of a microelectromechanical systems design contest at Sandia National Laboratories. The microbarbershop can cut a single hair, and the chess board -- about the diameter of four human hairs -- comes with a full set of minuscule chess pieces.
Head Tilt Mouse
Ever since Mario Capecchi, Martin Evans, and Oliver Smithies created the first knockout mouse in 1989, genetically engineered animals have steadily increased in popularity for all kinds of biology research: simply pick a gene, turn it off in the mouse, and see what happens.