Hero of Alexandria invented the aeolipile, a primitive steam engine, in the first century. A hollow sphere with elbow-shaped tubes mounted on an axle and suspended over a cauldron of boiling water, the engine likely could not have powered anything. “It should probably be remembered,” wrote historian William Rosen, “as the first in a line of engineering dead ends.”
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Research conducted using the Migrant Acceptance Index, a metric developed by Gallup to assess the emotional impact of immigration on both migrants and native-born populations, found that newcomers to countries with the lowest migrant-acceptance scores rated their lives more positively than did native-born residents, but this positivity faded the longer migrants stayed. In countries with high acceptance scores, longtime migrants expressed more optimism about the future than either native-born residents or newly arrived migrants.
Roman gladiators’ vegetarian diet was so full of beans and barley they were called hordearii, “barley men.” While serving as a gladiator-school physician, Galen criticized the diet; it built up bodies “not with dense and compressed flesh,” he wrote, “but instead rather more spongy.”
To clear his head during his martial-arts training in the 1950s, Bruce Lee went sailing. He slapped the water angrily and found it instructive about kung fu. “I struck it but it did not suffer hurt,” he later wrote. “I then tried to grasp a handful of it but this proved impossible.” Lee was energized. “That was it!” he recalled. “I wanted to be like the nature of water.”
Observing Mars through his telescope in 1877, Milanese astronomer Giovanni Schiaparelli saw oceans and canali, meaning channels. The latter was mistranslated into English as canals, implying Martian-made waterways, and an amateur astronomer named Percival Lowell soon began publishing books pointing to these as evidence of life on Mars. By 1910 photographic technology had advanced sufficiently to debunk his extrapolated theories.
In Confucianism the five cardinal human relationships (wulun) are love between fathers and sons, righteousness between rulers and subjects, difference between husbands and wives, seniority between older and younger brothers, and trust between friends. Though at the bottom of this hierarchy, friendship is the only relationship not determined by ranking or kinship.
“To cross a great river,” advises a third-century Chinese alchemical text, you should smear a mixture of mercury, carp gall, and dragon grease on the bottoms of your feet. “When you walk on the water, you will not sink.”
“For me,” the Roman philosopher Seneca recalled a friend saying, “the talk of ignorant men is like the rumblings that issue from the belly. For what difference does it make to me whether such rumblings come from above or from below?”
The astronomer and mathematician Thales of Miletus is believed to have been the first ancient Greek scholar to discuss the phenomenon of magnetism. Aristotle notes in On the Soul that Thales held the belief that “the magnet has a soul in it because it moves the iron.” Five and a half centuries later, Diogenes Laërtius concurred with Aristotle, observing that Thales “attributed a soul or life even to inanimate objects.”
In one of the earliest references to the tragedy of the commons—a concept that describes how people use natural resources to their advantage without considering the cost to society—the economist William Forster Lloyd asked in 1833, “Why are the cattle on a common so puny and stunted? Why is the common itself so bare-worn and cropped so differently from adjoining enclosures?”
About the presidential election of 1928, between anti-Prohibitionist Al Smith and Prohibitionist Herbert Hoover, H.L. Mencken wrote, “If Al wins tomorrow, it will be because the American people have decided at last to vote as they drink.” Hoover won, earning 444 of the 531 electoral-college votes.
“People think this pandemic is an accident,” wrote Nassim Nicholas Taleb in May 2020 of the Covid-19 crisis. “It is not. It is part of the system we have built. When you read the history of England, Italy, and the Middle East, you read of frequent quarantines and lockdowns because of sieges and plagues. These were built into the economic landscape and into the costs of every merchant. So the cost of the pandemic and future pandemics should be set against gross domestic product figures. We must realize our real economic growth is much lower than our annual figures suggest because the disasters wipe out the growth of preceding years.”
The title track of Van Morrison’s 1990 album Enlightenment opens with the lyrics “chop that wood, carry water,” a reference to the popular Zen Buddhist dictum that before enlightenment, one must chop wood and carry water, and that after enlightenment, one must chop wood and carry water. The origin is a verse by the late eighth-century Chinese poet Layman Pang, who declared that his “supernatural power and marvelous activity” was “drawing water and carrying firewood.”
In 2020 bioarchaeologists found evidence that six individuals buried in southern Peru’s Chincha Valley during the fifteenth and early sixteenth centuries began their lives hundreds of miles away, on the country’s upper coast. The findings support colonists’ descriptions of the Incan Empire forcibly resettling populations to quell dissent and increase the procurement of natural resources. “The state generally sought to put people in ecological zones similar to their home,” the researchers noted, and the Chincha Valley would have been “a prime destination for the resettlement of northern water-management specialists and miners.”
Athenaeus wrote that fourth-century-bc Greek courtesan Phryne was so beautiful “she used to wear a tunic covering her whole person” because it was “not easy to see her naked.” Once prosecuted for a capital crime, she was about to be declared guilty when the orator pleading her case brought her to the middle of the court and ripped off her tunic. The judges, “so moved by pity,” acquitted her of all charges.