Mac Oglesby wrote: > > Fer J. de Vries wrote: > > >Another methode is to make use of the so called Horizontoscoop. > >This is an instrument, based on an Oughtred sundial, with a plexiglass > >dome over it. > >In the plexiglass all the surounding is reflected. > >Holding this instrument on any point of the wall, you can directly see > >if the sun can reach that point through the sunroof. > > > >This instrument is available in Germany. > >The last offer I have is of october 1996, DM 328.80. > >I posses such an instrument over 13 years. > >It is delivered with the Oughtred design for latitudes between 51 and 53 > >degrees. > > How interesting to hear of a device like this. Are there pictures and/or > more information available anywhere? > > Mac Oglesby
I purchased a "Solar Pathfinder" from Solar Pathways Inc., 31 Chaparral Circle, Glenwood Springs, CO 81601. It was written up in "Home Power" magazine issue #21 Feb/Mar. 1991. The use in that article was to locate solar panels so that they would receive maximun sun in the winter, even though you may be doing the survey in the summer. Web page for "home ower" is http://www.igc.apc.org/hp/ Price was around US$150. I think the company was for sale, so I would check with home power to find the new address. Happy dialing, Brooke
