a type of nuclear explosive being developed by the US Department of Defense could blur the critical distinction between conventional and nuclear weapons. The work has also raised fears that weapons based on this technology could trigger the next arms race.
Cambridge University Library holds the largest and most important collection of the scientific works of Isaac Newton (1642-1727). More than 4,000 pages have been scanned, including his annotated copy of Principia Mathematica, containing Newton's laws of motion and gravity.
In 1927 Professor Parnell heated a sample of pitch and poured it into a glass funnel with a sealed stem. 72 years later, the eighth drop is only just about to fall.
Women who navigate around 3D computer-generated environments for a living - or even for fun - are having their style cramped by ultra-narrow computer displays and graphics software that favours men.
Anat Levin, Dani Lischinski, Yair Weiss - a computer-assisted process of adding color to a monochrome image or movie with a relatively modest amount of user input.