In an 1850 newspaper article, Karl Marx declared that “revolutions are the locomotives of history.” Ninety years later, Walter Benjamin countered with a different analogy: “Marx says that revolutions are the locomotive of world history,” he wrote, “but perhaps it is quite otherwise. Perhaps revolutions are an attempt by the passengers on this train—namely, the human race—to activate the emergency brake.”
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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.
“Utter damned rot!” is what William Berryman Scott, a former president of the American Philosophical Society, said in response to Alfred Wegener’s theory of continental drift, first proposed in 1912. “Wegener is not seeking the truth,” said a doubtful geologist, “he is advocating a cause and is blind to every argument and fact that tells against it.”
“There is a dockyard at Woolwich where one hundred warships of all sizes are built yearly to replace ships lost to the enemy or which have become obsolete. Because of the high costs of armaments and machinery, the government is usually in debt and forced to borrow from the public,” observed Mirza Abul Hassan Khan, a Persian ambassador on a diplomatic visit to London in 1810.
According to sixth-century-bc Greek poet Hipponax of Colophon, in times of drought, famine, or plague an ugly or deformed person was chosen by the community to be pharmakós, or scapegoat. After being fed figs, barley cake, and cheese, he would be struck on the genitals with the bulbs and twigs of wild plants, led on a procession accompanied by flute, and burned on a pyre. His ashes were thrown into the sea. It is believed that Hipponax, whom Pliny the Elder once called “notoriously ugly,” may have been exaggerating the ritual.
May 1 was codifed in 1820 as the date housing contracts in New York City expired or were renewed. Davy Crockett witnessed moving day in 1834. “It seemed a kind of frolic, as if they were changing houses just for fun,” he wrote. “Every street was crowded with carts, drays, and people. So the world goes. It would take a good deal to get me out of my log house, but here, I understand, many persons ‘move’ every year.”
As editor of the New York Tribune, Horace Greeley once received a letter requesting an autograph of the late Edgar Allan Poe that Greeley might possess from his correspondence. Greeley replied, “I happen to have in my possession but one autograph of the late distinguished American poet Edgar A. Poe. It consists of an IOU, with my name on the back of it. It cost me just $51.50, and you can have it for half-price.”
“Waters from snow and ice are all bad,” opined Hippocrates of Cos around 400 bc. “Once frozen, water never recovers its original nature, but the clear, light, sweet part is separated out and disappears.” Such melted waters, he declared, “are the worst for all purposes.”
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.
According to the iron hypothesis, sprinkling iron into low-chlorophyll regions of the ocean would create large algal blooms. Oceanographer John Martin argued that large-scale iron enrichment could grow enough algae in the oceans to absorb carbon from the atmosphere and reverse the greenhouse effect. “Give me half a tanker of iron,” he famously said in 1988, “and I will give you an ice age.”
Joseph Smith and other Mormon church leaders drew up articles for the Kirtland Safety Society Bank to provide capital to the burgeoning economy of Kirtland, Ohio, in 1836. Unable to obtain a bank charter, they printed banknotes as the Kirtland Safety Society Anti-Banking Company. The notes were used as tender. The bank failed during the Panic of 1837; holders of the notes were unable to recover their face value, and Smith then fled to Missouri to avoid arrest.
Joseph Conrad recalled, “It was in 1868, when nine years old or thereabouts, that while looking at a map of Africa of the time and putting my finger on the blank space then representing the unsolved mystery of that continent, I said to myself, with absolute assurance and an amazing audacity which are no longer in my character now, ‘When I grow up I shall go there.’”
Each year from late August to October, thousands of male Oklahoma brown tarantulas travel through the prairieland of southeast Colorado in search of a mate. The spiders, which reach sexual maturity around the age of ten, often survive just one migration season. “Once they wander and mate, it gets cold,” said one entomologist. “They’ll be dead by Christmas.”
In an 1846 math textbook from the Free Grammar School of King Edward VI, one exercise considers an exchange of 450 bags of potatoes for cash, 15 chests of oranges, and 185 bushels of carrots; the remainder is nuts. The question is posed: “How many bags of nuts did I receive?”
Beaver fur can contain between 12,000 and 23,000 hairs per square centimeter, and it is particularly good for making thick, pliable, water-resistant felt. In 1733 the Hudson Bay Company valued one prime-quality beaver skin at the same worth as one brass kettle, two pounds of Brazilian tobacco, one gallon of brandy, or a pound and a half of gunpowder.