Archive: 09/06/2011

Before DNA: 20th-century forensics

Historians tend to see the birth of DNA fingerprinting in 1985 as a watershed in forensic investigation - the moment that gave birth to the systematic crime scene analysis we associate with TV programmes like ...

Sep 06, 2011 5 / 5 (1) 0

Blazars

(PhysOrg.com) -- A blazar is a galaxy which, like a quasar, has an intensely bright central nucleus containing a supermassive black hole. In a blazar, however, the emitted light sometimes includes extremely ...

Sep 06, 2011 5 / 5 (6) 9 | with audio podcast

1.6 children per woman

For the first time, the Max Planck Institute for Demographic Research presents corrected birth rates that are considerably higher than the official figures. Researchers also anticipate a reversal in the trend ...

Sep 06, 2011 4 / 5 (2) 0