Hi, my name is Bob Greener and I'm a volunteer with Martyn Fleischmann Memorial Project. Okay, so it's finally arrived the thousand line per millimeter linear defraction grating that I hope to use along with an old mobile phone to real-time capture any particular spectral output changes in the supernova reactor. So I actually have to build the slit and the box that goes on the back of the phone. The good news is those kind of things have designs that you can download off the web. And I just want to show you here we've got some light here coming through the window and perhaps I can get it to reveal itself. There we go and so you can see this is daylight so however the four spectrum there all the way through from those lovely violets blues through to the greens, the yellows, the oranges and red. So we have everything there and you can see how smooth that is. There's no real gaps or what you might call really intense areas. So that's from a window just off to my right and I have also a phone LED here or my trusty galaxy note two here and I'm going to turn that on and you're just going to see what an LED. So there's an LED there and I'm going to show you what that appears like on there so you can see look at that. So very very intense in sort of down at the sort of blue end and then there's appears to be a gap and then you've got this bright green and then kind of like a bright orangey red and so on. So it's much it's obviously a much brighter point source but you can see how this is not quite the same kind of smooth gradient that you get from the sun. So let's go back to the sun. Where was that? It was over here. There we go. So if we were on a sunnier day it might be a better representation but you get the idea of nice, smooth gradient there coming from the window. So this hopefully will enable me to do the build of the experiment and get everything together. So thank you very much for your time and I will see you in the next video.