NORTHAMPTON.- Northamptonshire, home to the world famous Silverstone Circuit and Althorp, the final resting place of Diana, Princess of Wales, will this summer welcome new exciting art commissions and large scale artworks onto its waterways and water towers as part of the Cultural Olympiad, the largest cultural celebration in the modern history of the Olympic and Paralympic Games. The installations within this programme, titled FLOW, will take place across several key locations in the county, from the Grand Union and Oxford Canals, which connect London to Birmingham and Oxford to Coventry respectively, to the gentle River Nene, now celebrating its 250th year of being navigable. Featured artworks will range from Nene Nine, a series of nine magnificent spires by internationally renowned artist Steve Messam, running along sections of the Grand Union Canal and the River Nene, to Jo Fairfaxs mesmerising