Limits on the number of centrifuges and where they could be housed might also be necessary.

Since then, Iran has responded to incremental tightening of international sanctions by building more centrifuges.

These had obvious and immediate utility for centrifuge technology, essential for producing weaponsbomb grade uranium.

Dr. Khan's export of centrifuge technology was unknown to successive governments in Pakistan, says the country's leader, General Pervez Musharraf.

We know that Iran has made progress with the centrifuge technology essential for producing the enriched uranium needed for nuclear weapons.

Steam turbines can also be used directly to drive large centrifugal pumps, such as feedwater pumps at a thermal power plant.

Intelligence collection is a good example, and the elaborate Stuxnet worm that disabled Iranian nuclear centrifuges seems to have been a government creation.

Meanwhile in Frankfurt, the police complied with the order of eviction of the seven month long Occupy Frankfurt settlement around the Euro sign near the ECB headquarters.

Earth orbit A spacecraft enters orbit when it has enough horizontal velocity for its centripetal acceleration due to gravity to be less than or equal to the centrifugal acceleration due to the horizontal component of its velocity.

In earlier years, Dr. Khan and his collaborators published a number of papers detailing critical issues regarding the balancing of centrifuges and magnetic bearings.

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CAMBRIDGE Two years ago, a piece of faulty computer code infected Iran s nuclear program and destroyed many of the centrifuges used to enrich uranium.

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If it used the centrifuges that it purchased from Pakistan s nuclear impresario A.Q. Khan, it could have enough fissile material to produce 20 bombs.

In October 2003, Italian inspectors of a German ship moored in Taranto, Italy, uncovered a stash of centrifuges bound for Libya.

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According to Rowhani and Velayati, while Iran in recent years has increased the number of centrifuges in use in its nuclear research program, the cost has been an economically devastating array of international sanctions.