The bikelab series was starting to hit its stride, and this issue focuses on the BEHEMOTH power system… a huge and central part of the project. As with the others, this text languished for decades in a dark corner of my site, with no images to shed any light on what I was talking about.…

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Bikelab Crew, circa 1991

This second issue of the Bikelab Notes, published during my time building BEHEMOTH at Sun Microsystems, focuses on the high-brightness LED taillight assemblies. These were not commercially available at the time, so this was a hack. I also commented on the wonderful facilities that Sun provided and answered a few reader questions. This was an…

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One of the most visually distinctive components of the BEHEMOTH bicycle system was the BIU, or Brain Interface Unit. This was based on a Bell Tourlite helmet, and included a head-mounted display, three ultrasonic sensors for cursor control, stereo and communications headsets, boom microphone, spot and flood lights, rear-view mirror, and a fluid heat-exchanger to…

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BEHEMOTH computerized recumbent bicycle console with Macintosh

Over the years of taking BEHEMOTH onto stage for speaking gigs, one of the biggest crowd-pleasers (especially among engineers) was the folding console. This is where it started… a mechanical design by David Berkstresser, lots of sheet-metal parts, then an arcane assembly of hinged surfaces attached to a shock-isolated aluminum substrate and held in place…

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