do with one flying lap for paul, as rival max. verstappen was hit by power problems, charles leclerc was inch perfect to take his fourth pole inch perfect to take his fourth pole in six races ahead of max verstappen and team mate carlos. ahead of that revival, muscle fourth, hamilton six. on sunday, you may well have seen them at the front already this season. ben croucher, bbc news. harlequins have secured a place in the rugby union premiership semi finals. that didn t look likely at half time at twickenham when they trailed gloucester by 17 points, but they turned it around to win 28 24. jim lumsden reports. it always helps when you can host the occasion or game down the road at english rugby. gloucester cared little and soon repaid the hospitality with a try from ben morgan. a win would boost their semifinal hopes, but victory or a draw would confirm harlequins place. alex tom brown s converted score brought them level. half an hour gone and he tries were flooding in. two
we have lost about 85% of our harvest yield. so how do we protect them while quenching our thirst for clean energy? tidal has a role, the wind doesn t always blow, tidal always keeps going. perhaps this monitor is the answer. we re at nigg in the north east of scotland. it s about the length of a bus. crikey. yeah. and the blades go around. all underwater as well. all underwater. so vessels pass over the top, we re eight metres underwater, so the tip of the blade. this tidal turbine is being prepared to go in waters with some of the strongest currents in the world. and underwater that power will push these blades around to make renewable energy, but tidal power isn t yet as developed. this has been in the water for about two years, this turbine does get barnacle growth on it and that does become food for fish. during slack tide there are fish around these turbines. which would attract these mammals. which would attract predators. and the question is then, as the flow increases and the