Charles C. Mann at The New Atlantis:

Water systems and their problems are as old as the first cities, and possibly older. The urban complex of Mohenjo-Daro, on the banks of Pakistan’s Indus River, arose about 2600 b.c., around the time that Egyptians were erecting the pyramids. Mohenjo-Daro was the biggest city in what archaeologists call the Harappan or Indus Valley civilization. Most of the citizenry lived in the “lower town,” a Manhattan-like grid of streets and boulevards faced by low brick buildings. Atop a high platform of mud bricks to its west was the “upper town,” sometimes romantically called the Citadel, a civic center that held relatively few people. Remarkably, there is little evidence that people in the upper town were richer or more powerful than those in the lower — Mohenjo-Daro seems to have been a surprisingly egalitarian place.
Water control was at its heart. Some 700 public wells dotted the lower city, many of them sixty feet deep. Cylindrical and lined with bricks and plaster, these wells created an urban water supply with a capacity and safety level that would not be matched until the modern era.
more here.
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Dream 209
The partnership between the president and the richest man in the world is coming to an end. There is one clear loser in the breakup of this affair, and it is Elon Musk.
One of the best things I read was an 1889 essay by Andrew Carnegie called
Do you feel like you’re able to keep up with developments in AI? I don’t. The impossibility is a running joke among insiders.
Here’s the first short short-story I have for you about boys.
WHEN THE WRITER MAYUMI INABA meets Mii, the kitten who will become “the center of her life,” the animal is stuck in a school fence, screaming for rescue in the night air: a “little white dot” deposited there “out of malice or mischief” by a culprit long departed. There is no sign of her mother or littermates, no evidence that she is owned or loved or named. She is flea-bitten, only a few days old, exhausted, and of obscure origin. “All I knew,” Inaba writes of the moment she collected this defenseless being into her hands, “was that she must have felt utterly desperate.” Any cat person worth their fur-covered clothes can guess what happens next; Inaba is subsumed in devotion to this creature, with its face “the size of a coin.” Her life will be ruled by Mii until Mii’s own life ends, and that is right and good.
A strain of bacterium that often causes infections in hospital can break down plastic, research published this week in Cell Reports reveals
‘Always be nice to girls, you never know who they’ll become’ was a common saying among the generation of upper-class Englishwomen born around 1900. Diana Spencer’s life was a spectacular demonstration of its wisdom. It is now almost impossible to conceive what little consequence accrued to a third daughter, born between two prayed-for boys – the elder dead in infancy, the younger living – in a primogeniture-practising family in the middle of the last century. Yet this lowly person became the most famous woman in the world. We can only imagine how her brother felt.