# Re(2): Mirrors, Apports *The Urth list — 1 messages, 1 voices, 17 Feb 1998* > Exported from an unofficial mirror of a public mailing list. Copyright > in each message remains with the person who wrote it. > Email addresses are obscured as `user at host`, the form the original > archive published. This file was rebuilt from parsed fields rather than > retained headers, so it is faithful in content but not byte-exact. --- ### CRCulver *17 Feb 1998, 15:31* Kieran said: > Problem here though in that Fr. Inire says that a coherent light source > (laser) is required for anything more complicated than the Fish to form. The > ship is presumably driven by starlight which is non-coherent.< Inire, in his presence chamber, used merely one light, which was wildly incoherent (if it was coherent, Inire and Thecla's friend would have had so difficulty seeing it). Outside of the ship, however, there are myriad lights, the stars. Thus, there is a greater probability that one of the light rays will be *coherent enough* to form an apport. Or, perhaps the sails, unlike the glass mirrors of the presence chamber, can warp light so that it is coherent. I dunno, really. I wonder how good of a thaumatugist Father Inire was. He seemed to only dabble in the art, instead of making a career out of it like Hethor. Perhaps we only saw him in his "mad scientist" form, and not in his true work. Christopher Culver ---