A Trip to England: Covid Risks and Responsibilities

In November I’ll travel to England, my first overseas trip in over 1½ years. This will be the first time I’ve flown eastbound across the Atlantic on a daytime flight. But, enough of firsts. The trip isn’t assured. It’s possible Covid travel restrictions to the UK could be tightened and I would have to cancel… Continue reading A Trip to England: Covid Risks and Responsibilities

Cycling Walker, Minnesota

Earlier this month, we drove Up North for a few days of cycling. At Garrison, on Mille Lacs Lake, we turned left at the Giant Muskie without stopping. Another 80 miles to our destination, Walker, Minnesota. The absurdity of the muskie promoted an earworm. As we approached Walker, I downloaded a hit from 1964: “Gonna… Continue reading Cycling Walker, Minnesota

Burger Journey

I love to travel, whether it’s by plane, train, bicycle, or on foot. The destination may provide some purpose, but it’s not necessarily the main point. Such was my search for hamburger parts these past few days. I say “parts” rather than “ingredients” as a burger is largely an assembly operation requiring few cooking skills.… Continue reading Burger Journey

How to Control a Houseplant Irrigation System

I’ve just finished building an irrigation controller supporting two watering zones for a rolling houseplant rack. As I learn and experiment, I’ve changed the design of our irrigation controllers several times. Currently, the focus is simplification, reliability and autonomy. With the previous design, the Internet had to be available for plants to be watered at… Continue reading How to Control a Houseplant Irrigation System

How to Build a Houseplant Irrigation Manifold

Different plants have different watering needs, including the volume and frequency of water that is delivered. It’s therefore convenient to divide an irrigation system into watering zones. Each zone delivers water to plants with similar water needs. An irrigation manifold distributes water to multiple irrigation zones. After experimenting with various designs for irrigation manifolds, I’ve… Continue reading How to Build a Houseplant Irrigation Manifold

My First Great Ball Contraption

A great ball contraption (GBC) is a [LEGO] machine which receives soccer balls or basketballs from one module and passes them to another module, rather like a bucket brigade. Modules built according to the GBC standard can be assembled into a collaborative display without pre-planning or modification. greatballcontraption.com GBC’s are a whole LEGO subculture, complete… Continue reading My First Great Ball Contraption

Categorized as LEGO