I nominate Lord Rayleigh's birthday, November 12, 1842. Michael Georgoff San Jose, CA
- [pinhole-discussion] Pinhole Day Michael Georgoff (SAL-US)
- Re: [pinhole-discussion] Pinhole Da... Jerry and Katherine Green-Ellison
- Re: [pinhole-discussion] Pinhol... Guy Glorieux
- Re: [pinhole-discussion] Pi... G.Penate
- RE: [pinhole-discussion... Andy Schmitt
- Re: [pinhole-discussion] Pinhole Da... JMM1987
- Re: [pinhole-discussion] Pinhole Da... B2MYOUNG
- Re: [pinhole-discussion] Pinhole Da... B2MYOUNG
- Re: [pinhole-discussion] Pinhol... G.Penate
- Re: [pinhole-discussion] Pinhole Da... Tina Martin
- Re: [pinhole-discussion] Pinhol... G.Penate
