gwyn@BRL@sri-unix (10/27/82)
From: Doug Gwyn <gwyn@BRL> Sorry to hit the whole list, but... ----- Forwarded message # 1: Date: 26-Oct-82 06:04:17-PDT (Tue) From: harpo!MAILER-DAEMON at Ucb-C70 Subject: Unable to deliver mail Message-Id: <8209261304.14647@UCBVAX.BERKELEY.ARPA> Received: by UCBVAX.BERKELEY.ARPA (3.227 [10/22/82]) id A14645; 26-Oct-82 06:04:20-PDT (Tue) To: ucbvax!gwyn at BRL Via: Ucb-C70; 26 Oct 82 17:30-EDT Via: Brl; 26 Oct 82 17:44-EDT ----- Transcript of session follows ----- ----- Unsent message follows ----- Date: 25 Oct 82 13:24:40-EDT (Mon) From: Doug Gwyn <ucbvax!gwyn@BRL> Subject: Re: mousetrap-powered car Message-Id: <8209260114.329@UCBVAX.BERKELEY.ARPA> Received: by UCBVAX.BERKELEY.ARPA (3.227 [10/22/82]) id A00290; 25-Oct-82 18:14:43-PDT (Mon) To: harpo!ihps3!ihuxq!irish@Ucb-C70 Low friction: 1) Only three wheels (need at least three for stability). 2) Oiled bearings, preferably teflon/nylon sleeves. Low drag: 1) Slow speed, less drag with no need for cowling. 2) Nothing touching ground except tires. High traction: 1) Wide rubber tires. 2) Slow acceleration to avoid spinning wheels. [Cheating category: 1) Have the trap fire a model rocket motor...] It sounds as if the best bet might be a car with fairly large, rubber tires driven via a reduction gear arrangement whose driving gear is powered by the mousetrap. Possibly this would be better if the mousetrap were to spin a flywheel and then engage the gears later. ----- End of forwarded messages