Jerrold Zacharias at the Massachusetts Institute of Technology developed a practical atomic clock around the same time that Louis Essen and John Parry established the first atomic clock at the National Physical Laboratory in Teddington, west of London.
Iraq maintains that it no longer has any such programmes, although one senior Iraqi official has all but admitted that the country came close to building an atomic bomb in 1991, at the time of the Gulf war.
Tokyo radiation levels are not hazardous to human health at this time following radiation leaks at the Fukushima nuclear power plant, the International Atomic Energy Chief Yukiya Amano told reporters Wednesday.
In real time, the International Atomic Energy Agency has been updating a terrified international audience about the situation at the Fukushima No. 1 nuclear power plant.