Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Bernard,
This reminds me of one of my favorite papers, in which Lord
Rayleigh calculated the focal length of a pinhole that had the resolution
of a four inch telescope. It is something like 150 miles.