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?”
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“The splendors of this age outshine all other recorded ages,” wrote Ralph Waldo Emerson in 1871. “I have seen wrought five miracles—namely, the steamboat, the railroad, the electric telegraph, the application of the spectroscope to astronomy, the photograph.” He died in 1882, missing the invention of the machine gun by three years, the gramophone and radar by five years, and the diesel-fueled internal combustion engine by ten years.
In a behavior known as “transient sexual mimicry,” male giant cuttlefish can assume the behavior and coloring of female cuttlefish in order to bypass larger males and impregnate their desired mates.
Of countries using the death penalty in 2012, the U.S. had the fifth-highest number of executions (43) after China (thousands), Iran (314), Iraq (129), and Saudi Arabia (79). Texas was the state with the most (15), bringing Governor Rick Perry’s total orders of execution up to 252. The figure is by far the highest of any U.S. governor and is trailed distantly by that of Perry’s predecessor, George W. Bush, who ordered 152—although Bush was in office for just shy of six years, as opposed to Perry’s twelve.
When Apple released its Shuffle feature for iPods, users were deceived by the true randomness of its playback; songs from the same album or artist were often grouped by chance. Complaints led Steve Jobs to alter the device’s programming and begin offering Smart Shuffle, which allowed users to adjust the likelihood of hearing similar songs in a row. “We’re making it less random,” he said, “to make it feel more random.”
In 1872, railroad magnate and racehorse owner Leland Stanford hired Eadweard Muybridge, then famous for his photographs of Yosemite Valley, to capture evidence on film that at a certain point in a horse’s trot, all four of its legs were simultaneously off the ground. Five years later, Muybridge developed a camera with a shutter speed of 2/1000 of a second, fast enough to prove Stanford correct. Muybridge went on a lecture tour with a device of his own design, the zoopraxiscope, which, through the rapid projection of photographic images, created the illusion of continuous movement.
A hen near Leeds, England, caused a panic in 1806 when she began laying eggs inscribed with the words Christ is Coming. Terror of Judgment Day swept the population until it was observed that the hen’s owner, Mary Bateman, who had been charging a penny per visitor, was writing the message on eggs and forcibly reinserting them into the hen to be laid again.
Along with an elephant whose name in Arabic meant “the father of intelligence,” Abbasid caliph Harun al-Rashid presented Holy Roman emperor Charlemagne with a mechanical clock powered by water in 807. At noon a weight dropped, bells sounded, and twelve brass horsemen emerged from twelve windows.
Engineers at the University of Illinois published a paper in 1960 predicting doomsday would occur November 13, 2026, based on calculations of human-population growth; they hoped “some time, somehow, something will happen that will stop this ever-faster race to self-destruction.” One idea was space travel. “It is only unfortunate,” they wrote, “that no reentry permit to earth can be given to these space trotters.”
The Umayyad poet Dhu al-Rumma, of the Bedouin tradition, was known to ask his listeners to transcribe his poems as he was reciting them, declaring that a book “does not forget or alter words or phrases which have taken the poet a long time to compose.”
In The Canterbury Tales, Geoffrey Chaucer wrote, “Four o’ the clock it was, to make a guess; / Eleven foot long, or little more or less, / My shadow was, as at that time and place, / Measuring feet by taking in this case / My height as six.”
“I have absolutely no pleasure in the stimulants in which I sometimes so madly indulge. It has not been in the pursuit of pleasure that I have periled life and reputation and reason. It has been in the desperate attempt to escape from torturing memories,” wrote Edgar Allan Poe in a letter in the last year of his life.
The opening of a particle accelerator at Brookhaven National Laboratory in 2000 inspired fears that high-speed collisions might launch a chain reaction that could turn the earth into a hyperdense sphere about one hundred meters across. A risk calculation determined this to be unlikely; if the collider were to run for ten years, the chance was no greater than 1 in 50 million. “The word unlikely, however many times it is repeated,” wrote concerned scientists, “just isn’t enough to assuage our fears of this total disaster.”
In the late eighteenth century, yellow fever was widespread in the Caribbean; case-fatality rates among British troops there were as high as 70 percent. The fate of French troops sent to Saint-Domingue to suppress a slave rebellion was even worse. “Evidence suggests the troops were actually an expeditionary force with intentions to invade North America through New Orleans and to establish a major holding in the Mississippi valley,” wrote the authors of a 2013 scholarly paper. Mortality from the disease thwarted Napoleon’s “secret ambition to colonize and hold French-held lands, which later became better known as the Louisiana Purchase.”
Fairy wren nestlings learn “passwords,” or unique single notes, from their mothers while still in their eggs; after birth they must use the passwords when calling for food, or the mothers will abandon the nest. In a 2012 study, scientists in Australia experimented with switching eggs and mothers, and found that passwords were not genetically inherited; the chicks assumed the passwords of their adopted mothers.