THE HORSE archers of historical Iran had a trick often known as the Parthian shot. When retreating after a cost they had been in a position to twist their our bodies round within the saddle and unfastened a ultimate salvo. That’s not a foul description of the announcement made on February eighth by the controllers of the Joint European Torus (JET), a fusion experiment at Culham, England. After 40 years of operation, JET shut up store in December. However the results of one among its ultimate runs, carried out on October third of final 12 months, makes a wonderful Parthian shot.