a former director of nigeria, state security service in washington dc. we have america, ankle, head of the africa practice that the racial group and from coventry in the u. k. a . u. mussa, a political analyst. welcome to you all, mike. 80 for coming to 1st. what hasn't or what has president hurry done since the last election that has got the country into such a mess? well i think process about my missing is i believe that's what the protection of the students did show us the student needs to go to the doctor who and who there in washington. given that there are demonstrations in a boucher lake os port, harcourt is clearly a good strong degree of coordination. is it your sense that this is beginning to look like an anti bu hurry movement? oh yeah, i mean it's clearly and highly movement. all several behind the protest, right? that's not new. we saw that during and after the end sized movements last october. so yes, i mean that certainly several elements of major in society, better dissatisfied with the team. hello mr. in coventry that cracked, and that america, and who is talking about, how was that handled in your opinion? i mean, arguably, it made the situation worse,

a mechanical engineer. faced in cambridge in the u. k. he builds and tests historic inventions. and currently he's reconstructing one of the ben mussa brothers, most complicated devices. ready the flutes, which plays itself by jim, here's the device. fantastic. are you even got little kerrick? yeah, yes. so the venue most of brothers a said to have built, wrote about that. played out how much detail was there that you could get hold of to allow you to reproduce while there was a reasonable amount. there are references, but there are different apparently different translations. so some things are not entirely clear. presumably modern scholars historians looking back at this, there's a lot of guesswork and about how they solve the problem. they said talk me through it. how does this work? right? well, the basic principle is that there is a drive wheel here which operates this rotating drum. that would have been water power is a riley. and there are a series of effectively cams, which lift little arms which then seal or unseal. they tone holes only on the flute . an air comes, passes through comes in here. okay, what can we have a demo