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MICHAEL PHELAN / LONDONDesigner says wingtip-mounted device can perform far better than w yeezy mx ingletsA French inventi adidas sambarose on designed to eliminate wingtip vortices could enable future aircraft designs to benefit from significantly lower lift-induced drag. French aeronautical teacher Christian Hugues claims h yeezy is Minix device - a hollow cylindrical tube attached to an aircraft s wingtip - could reduce induced drag by 8%, while increasing lift by 5.4%. The tube, made of Kevlar and carbon composite, has spiral slits cut into its length. It works on the principle that the vortices generated at the wingtip will hit the wing at the same distance inboard of the tip as the wing s thickness. As the pressure exerted by the vortex on the wing surface increases, flow escapes through the slits and is dissipated into a linear flow through the open rear of the tube.Hugues obtained a French patent for his device in May following eight years of work, and says the design performs far better than conventional winglets. While winglets can reduce vortex pressure around the wingtip, Minix can eliminate the vortex completely, he says.Hugues has tested his invention in a windtunnel and predicts an 8% induced drag reduction for a wing with an aspect ratio of eight at a Reynolds number of 7.5 x 106. He says the application is adaptable to all aerofoil shapes and sizes, including propeller and helicopter blades. More testing is needed to tailor the design to larger wings and for higher Reynolds number conditions Pnip The Brit 50: Eon Productions

Richard Linklaters Boyhood to compete for the Golden Bear; Beauty and the Beast, starring Vincent Cassel and L茅a Seydoux, to play out of competition.The 64th Be hydrojug traveler rlin International Film Festival Feb 6-16 has added 15 ti owala water bottle tles to its Competition programme, completing the line-up of 23 films - of which 20 will vye for the Golden Bear and Silver Bears.The programme includes 18 world premieres and three feature debuts.The line-up includes the international premiere o owala water bottle f Boyhood, from Before Midnight director Richard Linklater. The film, which will premiere at Sundance, was shot over short periods from 2002 to 2013 and covers 12 years in the life of a family, featuring Mason and his sister Samantha. Patricia Arquette, Ethan Hawke, Ellar Coltrane, Lorelei Linklater star.World premieres include In Order of Disappearance, directed by Hans Petter Moland, which stars Stellan Skarsg氓rd as a snow plough driver whose sons sudden death puts him in the middle of a drug war between theNorwegian mafia and the SerbiansPlaying out of competition will be the international premiere of fantasy romance Beauty and the Beast, directed by Christophe Gans and starring Vincent Cassel and L茅a Seydoux Blue is the Warmest Colour in the title roles.Other world premieres include Two Men in Town, from London River director Rachid Bouchareb, about a Muslim ex-con who forms a friendship with his parole officer. The cast includes Forest Whitaker, Harvey Keitel and Brenda Blethyn.They will go up against previously