Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!bellcore!decvax!genrad!mit-eddie!think!harvard!seismo!brl-tgr!ron From: ron@brl-tgr.ARPA (Ron Natalie) Newsgroups: net.columbia Subject: Re: IMAX and the Shuttle flights Message-ID: <11604@brl-tgr.ARPA> Date: Mon, 15-Jul-85 17:26:55 EDT Article-I.D.: brl-tgr.11604 Posted: Mon Jul 15 17:26:55 1985 Date-Received: Thu, 18-Jul-85 07:36:56 EDT References: <1306@islenet.UUCP> <56700001@trsvax> <1265@peora.UUCP> Organization: Ballistic Research Lab Lines: 17 > I had thought maybe the rate at which the frames were shown was extremely > fast or something (because of the comments on inertia, etc.), but it > doesn't look that way since specks of dust on the film stay long enough to > see them fairly well. > Those specs are on a glass plate which is in direct contact with the film. The plate is slightly larger than twice the image size and there is a little gizmo for sliding it back and forth while the projector is in use to get a clean portion. It is however manually operated. For those who are around the Washington area, to get to the projection room at NASM, go in and watch the movie. As you are walking up to exit the theater, use the right side aisle (house left). There will be a closed door on the left as you exit the theater. Go through it, climb up the ladder and there you are. -Ron