Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!bionet!agate!linus!linus!linus!mbunix!eachus From: eachus@aries.mitre.org (Robert I. Eachus) Newsgroups: comp.sys.amiga.misc Subject: Re: Why? Message-ID: Date: 11 Mar 91 23:12:37 GMT References: <1991Mar7.135528.10099@ste.dyn.bae.co.uk> <1991Mar8.210436.11753@neon.Stanford.EDU> <1991Mar10.025617.166@nada.kth.se> Sender: news@linus.mitre.org (News Service) Organization: The Mitre Corp., Bedford, MA. Lines: 24 In-Reply-To: ludde@nada.kth.se's message of 10 Mar 91 02:56:17 GMT Nntp-Posting-Host: aries.mitre.org Another problem is that the beat frequency between the lights (especially fluorescent lights) and the screen can considerably exaggerate the flicker. I get bad headaches when using a Sun Workstation with a 66 Hz refresh rate, but have much less trouble with my (60 Hz) Amiga at home. (In the Amiga at work I have a flickerFixer board...) In either case, using a "warm" incandescent lamp is a big improvement. (Not due to the color of the light, but the warmer bulbs reflect more light (and heat) back to the filament so that it cools slower. The perceived 120 Hz (or 100 Hz) flicker in an incandescent lamp can be almost eliminated this way.) -- Robert I. Eachus "As far as Saddam Hussein being a great military strategist, he is neither a strategist, nor is he schooled in the operational arts, nor is he a tactician, nor is he a general, nor is he as a soldier... Other than that he's a great military man. I want you to know that." -- Gen. H. Norman Schwarzkopf, Saudia Arabia, Feb. 27, 1991