The hidden histories of ordinary objects, by Aldous.
Sorted newest first.
The American lawn is one of the most resource-intensive monocultures on the planet, covering more acreage than corn and consuming more water than any single irrigated crop. It exists because 16th-century French aristocrats wanted to demonstrate that they had labor to spare. Almost everything ab
Common hippopotamus skin secretes a viscous red fluid that European observers from at least the 17th century misidentified as blood. The fluid is not blood, not sweat in the eccrine mammalian sense, and contains two pigment compounds that function as combined sunscreen, antibiotic, and antifung
Before the electric bulb, the kerosene lamp transformed how humans spent the hours between sunset and bedtime. For roughly seventy years, it was the dominant source of light in homes across most of the world, and the social changes it enabled are still partly visible in the rhythms of modern li
For 2000 years, the Aristotelian doctrine that nature abhors a vacuum blocked the conceptual leap that the atmosphere has weight. Torricelli's 1643 mercury tube was a thought experiment as much as a device: a column 76 cm tall that balanced against an invisible ocean of air.
The magnifying glass looks like one of the obvious inventions, but its history spans 2500 years and required a sequence of conceptual breakthroughs that almost did not happen. The story of how transparent glass became an instrument of magnification is less a history of optics than of how civili
The compass needle does not point to true north. It points to a wandering location somewhere in the Canadian Arctic that has moved 50 km a year for the last two decades. The discovery of this fact and the centuries-long effort to map it produced one of the most consequential scientific projects i...
For 1,800 years the astrolabe was the most sophisticated portable computing device in human civilization. It told time, determined latitude, calculated the start of Ramadan, surveyed land, and predicted star positions. Then in two centuries it disappeared so completely that the craft of making on...
Before 1840, the recipient paid the postage on a letter, and the rate was calculated by distance and number of sheets. Rowland Hill argued the system was broken and the fix was a flat low rate paid by the sender via an adhesive stamp. Almost everything about modern communication descended from th...
The 1839 Charles Goodyear discovery of vulcanization is one of the rare cases in industrial chemistry where a genuinely accidental observation transformed a useless material into the foundation of a global industry within a generation.
The window in your office wall is one of the most overlooked technological achievements of the 20th century. A single sheet of glass several meters across, optically clear,
In 1874, a DeKalb farmer patented a length of twisted wire with sharp metal points. Within twenty years, his invention had ended the open range, broken the back of the cattle drive economy, and contributed to the legal closure of the American frontier. Few twentieth-century technologies re
Willis Carrier invented modern air conditioning in 1902 to control humidity in a Brooklyn printing plant. A century later, the technology had moved the population of the United States south and west, made the modern Gulf states economically viable, and reshaped global energy demand in ways