their wings which help thrust. scientists in sweden used a wind tunnel to capture the butterfly flying skill. fascinating and beautiful to look at. it is time to look at the weather. the met office has the amber weather warning in place through to the pennines and lancashire. furtherflooding and lancashire. further flooding and once lancashire. furtherflooding and once the rain has eased, the levels will rise. england and wales with the bulk of rainfall, persistence in the bulk of rainfall, persistence in the west, south east strong and dusty when touching gale force. snow in the southern uplands. brighter weather elsewhere, west of scotland and northern ireland, largely dried but the coldest conditions. milder further south. the winds well picked
mark lobel, bbc news. the sight of a butterfly taking flight is something lots of us have stopped to look at, but have you ever wondered how such delicate creatures fly? a new study has found butterflies cup and clap their wings to generate thrust which helps them avoid dangerous predators. scientists in sweden used a wind tunnel and high speed cameras to capture the insect s unique flying skill. a p pa re ntly apparently the material is flexible and it forms a pocket of air which claps together which propels even better, so the practical, what is the word i am looking for? i don t know. application the word i am looking for? i don t know. application of the word i am looking for? i don t know. application of that - the word i am looking for? i don t know. application of that is - the word i am looking for? i don t know. application of that is the i the word i am looking for? i don t l know. application of that is the way that drones know. application of that is the way that dron
cuts already, are more sustainable for the bbc if it wants to stick to the ethos it has set out and deliver the ethos it has set out and deliver the programming that it provides to the programming that it provides to the public? tt the programming that it provides to the ublic? , , ., ., the public? it set itself a target of delivering the public? it set itself a target of delivering £800 the public? it set itself a target of delivering £800 million - the public? it set itself a target of delivering £800 million of i of delivering £800 million of savings by 2022 and it is on track. £618 million to date. in the last year, due to covid 19, it has increased its savings targets at £1 billion. redundancies need to be the next part of its programme but it believes that it is going to be difficult to make further savings without having a major impact on audiences and content in the future. thank you very much for that. a study has found butterflies clap
a new insight into one of the mysteries of the natural world, how butterflies fly despite being equipped with large, inefficient wings. they ve discovered that butterflies cup their wings when taking off. this forms an air pocket that pushes the insect forward at speed, helping it to escape predators. researchers believe the knowledge could prove useful in other spheres, such as making some drones and underwater vehicles more efficient. this is bbc world news, the latest headlines: joe biden and kamala harris lead a ceremony to honour the 400,000 americans who ve died during the pandemic. president trump releases a farewell video on his last day in office before issuing his presidential pardons, including one for key former aide steve bannon. netflix got a big boost from the pandemic last year, as demand for streaming movies and television soared. the company now has more than 200 million paid members, up more than 30% from 2019. about 37 million people subscribed last year, including