Cycles of Change

Engineering practical systems and exploring the physical world.

A two-mile string of steel rail cars rolls to an unexpected halt on a remote stretch of track in western Nebraska. Casual observers imagine a broken signal, a blown air hose, or an engine failure. The long line of container boxes and covered grain hoppers stretches back toward the horizon. It sits [...]
Holiday feasts have always tested the physical limits of the domestic kitchen. Whether cooking an autumn Thanksgiving turkey, a Christmas centerpiece, or an Easter spiral-cut ham, home cooks encounter the same stubborn bottleneck: the primary range oven runs out of space, while dry heating coils [...]
Every passenger stepping aboard a modern commercial airliner walks into a pressurized metal tube engineered to fly eight miles above the earth. Outside the cabin windows at thirty-five thousand feet, the atmospheric pressure drops so low that human lungs cannot extract oxygen, while temperatures [...]
Driving past irrigated cornfields across western Kansas in late July presents a landscape of dazzling green. Center-pivot sprinklers rotate slowly across quarter-mile fields, throwing silvery arcs of water into hot afternoon air. Beneath the crops lies an ancient underground sea that makes this [...]
When grocery receipts climb at suburban checkout counters, shoppers naturally assume that farmers are pocketing handsome profits. A dozen eggs or a loaf of sourdough bread costs significantly more than it did four years ago. Yet out on county roads across Iowa and Kansas, family growers sit at [...]
Morning shoppers stepping into an American grocery aisle encounter an illusion of permanent abundance. Coolers hum while shelves hold winter berries, valley lettuce, and packaged beef sourced across three states. Customers push carts through polished aisles without considering where the goods [...]