Cycles of Change

Engineering practical systems and exploring the physical world.

A touring cyclist carries everything on two wheels. Shelter, tools, food, and clothing all ride on one frame, exposed to the open air whenever the rider stops moving. Shopping inside a traditional retail store forces the rider to walk away from that bicycle and leave it locked to a post on a public [...]
The modern urban environment is a complex and dynamic landscape defined by a high density of variables and a constant flux of human and institutional forces. For the individual inhabiting this space without the protection of traditional domestic structures, the city becomes a field of engagement [...]
Modern city roads rely on traffic lights to guide cars and protect walkers across busy street corners. In most towns, these signals still run on clock timers that follow fixed dials built decades ago. Such older controls cannot sense real vehicle lines or adjust to sudden jams on side roads. When a [...]
Choosing buses or trains over bikes is common in modern cities. On busy streets, sharing narrow lanes with fast cars and large trucks makes riders very anxious. In many surveys, fear of vehicle crashes keeps people from biking. Without protected lanes, this fear remains a big hurdle. Perceived [...]
When the passive systems of clothing and sleeping gear fail, or when conditions exceed their design limits, the outdoor traveler must switch to active protocols to maintain body temperature. Hypothermia is not merely a sensation of cold; it is a physiological cascade that impairs judgment and [...]
Thousands of foreign retirees and remote professionals move to Cambodia each year, drawn by warm river towns, inexpensive housing, and the dignity of living well on modest monthly incomes. In cities like Phnom Penh, Siem Reap, and coastal enclaves like Kampot, an older tenant can rent a sunlit [...]