Preparing For The Eclipse Of The Sun - The Csiro scientist at work on the multiple aerial interferometer at potts hill research station. They will be used in scanning the sun with its very narrow beam of 1/20 degree when the eclipse takes place in Egypt. Persia. & Russia on the 25th Feb 52. This is the worlds leading station in radio Astromonery. And have discovered the Bolton radio stars. That are Tosmall to be seen with any of the modern "Eyes! etc. January 31, 1952. (Photo by Gordon Herbert Short/Fairfax Media).