The inquiry Scrutiny attributed Causation the blade fracture to metal fatigue , caused Causation by heavy vibration in the newly upgraded Cause_to_make_progress engines , which had been tested Testing only in the laboratory and not under representative flight conditions .

Also called Name_conferral the Seneschal 's War or the Seneschal Upheaval and occasionally the Sewer War , the conflict tested Testing the principle of ecclesiastical reservation , which had been included Cause_to_be_included in the religious Peace of Augsburg ( 1555 ) .

Also tested Testing were fission devices intended to be used Using as primaries for thermonuclear weapons , and small tactical weapons for air defense Defending .

Grapple 3 tested Testing Purple Granite , a Short Granite with some fixes .

With an explosive yield of about , it remains Presence the largest British nuclear weapon ever tested Testing .

A final series of four tests Testing in August and September 1958 , known as Grapple Z , tested Testing techniques for boosting Cause_to_make_progress and making Manufacturing bombs immune to predetonation caused Causation by nearby nuclear explosions .

In a third series with a single test Testing , known as Grapple Y , in April 1958 , another design was tested Testing .

On April 17 , 2013 , an envelope addressed Expressing_publicly to President of the United States Barack Obama preliminarily tested Testing positive for ricin .

The letters tested Testing positive for ricin during FBI testing Testing .

On April 15 , 2013 , an envelope that preliminarily tested Testing positive for ricin , a highly toxic protein , was intercepted Preventing_or_letting at the US Capitol 's off-site mail facility in Washington , D.C .

Toxicology analysis Scrutiny of the balloon pilot , Lance Hopping , after the accident Catastrophe tested Testing positive for tetrahydrocannabinol ( THC ) , suggesting he may have been under the influence of cannabis at the time of the crash Catastrophe , which ultimately led to Causation the error in judgement Deciding .

Additionally , they tested Testing positive for marijuana .

Three days before the Games Competition opening Process_start ceremony the International Olympic Committee announced Expressing_publicly that Kenyan boxer David Munyasia had tested Testing positive for cathine and has been excluded Preventing_or_letting from the event Competition .

One primary device ( RACER ) was tested Testing in thermonuclear system mockup assemblies of TX-14 , TX-16 , and TX-17/TX-24 , to examine Testing and evaluate the behaviour of radiation cases and the compression of the secondary geometries by the primary 's x-rays prior to full-scale testing Testing during Castle .