american military had done a lot of research on this in in antarctica and the other but there's no woolfolk there these days is there well there is from these days in fact film is rather better than digital for extreme cold but yes you're right that you know we're entering a digital we've entered into a digital world what why would you say that for extreme cold film is better than that it's all those little things. i mean film is something there's something that can freeze break or whatever other put the problem with digital is that it's largely electronic and electronic and coal don't go well together and so you find i mean the camera that i use now which is a digital canon camera it works down quite comfortably to about minus thirty five but it stops at minus forty and some of the photos that. i take it will go on no one here will like you press the button and nothing happened stop and whereas you know in with with film i've used them down to minus fifty it's also saying i would . ok now you. of course have. a lot of challenges the whole world working at the in this region one of them is.