My gadget is given here in its entirety to anyone who cares to continue my trials. A message (to art@cochise.biosci.arizona.edu) relating your results in any trip would be of great value if you include the specifics of departure and destination, destination local time of how much sunlight exposure to your open eyes, and your feeling about the results. Reliable information from such experience might enable refinements. Note 6 years later (01/02): only one person has ever done this.