Tuesday, June 29, 2010

Cyanotyping for Black Rock

In a couple of weeks I am off to the Black Rock Desert for an amazing trip - to launch balloons and rockets that will contain a device we have made for sampling the air in the Stratosphere to try and detect microbes at 41km above the surface of the earth - above the ozone layer. We'll be sampling the air around the launch sites to check how many microbes are present at ground level and I wanted to record the plates by using what we'll have a lot of - sunshine. So I have used some agar dishes (one with bacteria on the right and one without on the left) as 'masks' on a cyanoprint. And you can really see the little bugs!! The cyanotyping takes advantage of the photochemical properties of iron hexacyanoferrate (which you might know as Prussian blue). I simply painted the light sensitive chemical on to some paper in the dark, left it to dry and then in the sunshine place the two dishes on top for 2 and a half minutes before washing in cold water to stop the process.

Monday, June 07, 2010

Olivetto and gardens

We had a super weekend in the new garden in Guildford, visiting Olivetto for dinner - very tasty pasta with porcini mushrooms and lots of yummy deserts. Then a trip to the Springwatch Fair to view the sun through special telescope (DO NOT try it at home!!). Then farewell to Dougal and Soazig again!
Related Posts Plugin for WordPress, Blogger...