Creating atomic-time standards became a priority in both America and Britain after the second world war.
Over a few decades this would amount to a minute's difference, but over several hundred years this would mean the atomic clock time-scale and the time-scale based on the Earth's rotation would be out by an hour.
Iran was set to resume uranium processing today, the day of the presidential inaugural, but then announced one more delay until early next week, ostensibly to allow the International Atomic Energy Agency time to get its monitoring equipment in place.
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.
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.
FORBES: Japan Radiation Fears May Outstrip The Real Health Dangers
Astrium's role, at its UK centre in Portsmouth, was to integrate all the payload components, including hydrogen-maser atomic clocks, the ultra-precise time-pieces on which Galileo's performance depends.
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.
But according to Cohen, whose credibility by this time was measurable only at the sub-atomic level, it was all just a big mistake.
The first two, KOERI in Turkey and the Atomic Energy Centre in France, should be operational some time in 2012 when a more exhaustive test will be conducted.
Mr. Obama said on Israeli TV that the length of time it would take Tehran to develop an atomic bomb varies, but that it could be more than a year away from the decision to build one.
Since it gets its time from the GPS satellites, all of which contain on-board atomic clocks, if your watch stops you'll always have an accurate clock handy.
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.
FORBES: IAEA Chief Off to Japan, Says Tokyo Radiation Levels Not Hazardous
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