Grace Hopper was a computing pioneer. She coined the term "computer bug" after finding a moth stuck inside Harvard's Mark II computer in 1947 (which in turn led to the term "debug," meaning solving problems in computer code). She did the foundational work that led to the COBOL programming language, used in mission-critical computing systems for decades (including today). She worked in World War II using very early computers to help end the war. When she retired from the U.S. Navy at age 79, she was the oldest active-duty commissioned officer in the service. Hopper, who was born on this day in 1906, is a hero of computing and a brilliant role model, but not many people know her story.
In this short documentary from FiveThirtyEight, directed by Gillian Jacobs, we learned about Grace Hopper from several biographers, archival photographs, and footage of her speaking in her later years. If you've never heard of Grace Hopper, or you're even vaguely interested in the history of computing or women in computing, this is a must-watch:
Illustration by Mental Floss. Image: Rischgitz, Getty Images
Johann Sebastian Bach is everywhere. Weddings? Bach. Haunted houses? Bach. Church? Bach. Shredding electric guitar solos? Look, it’s Bach! The Baroque composer produced more than 1100 works, from liturgical organ pieces to secular cantatas for orchestra, and his ideas about musical form and harmony continue to influence generations of music-makers. Here are 11 things you might not know about the man behind the music.
1. There's some disagreement about when he was actually born.
Some people celebrate Bach’s birthday on March 21. Other people light the candles on March 31. The correct date depends on whom you ask. Bach was born in Thuringia in 1685, when the German state was still observing the Julian calendar. Today, we use the Gregorian calendar, which shifted the dates by 11 days. And while most biographies opt for the March 31 date, Bach scholar Christopher Wolff firmly roots for Team 21. “True, his life was actually 11 days longer because Protestant Germany adopted the Gregorian calendar in 1700,” he told Classical MPR, “but with the legal stipulation that all dates prior to Dec. 31, 1699, remain valid.”
2. He was at the center of a musical dynasty.
Bach’s great-grandfather was a piper. His grandfather was a court musician. His father was a violinist, organist, court trumpeter, and kettledrum player. At least two of his uncles were composers. He had five brothers—all named Johann—and the three who lived to adulthood became musicians. J.S. Bach also had 20 children, and, of those who lived past childhood, at least five became professional composers. According to the Nekrolog, an obituary written by Bach’s son Carl Philipp Emanuel Bach, "[S]tarting with Veit Bach, the founding father of this family, all his descendants, down to the seventh generation, have dedicated themselves to the profession of music, with only a few exceptions."
3. He took a musical pilgrimage that puts every road trip to Woodstock to shame.
In 1705, 20-year-old Bach walked 280 miles—that's right, walked—from the city of Arnstadt to Lübeck in northern Germany to hear a concert by the influential organist and composer Dieterich Buxtehude. He stuck around for four months to study with the musician [PDF]. Bach hoped to succeed Buxtehude as the organist of Lübeck's St. Mary's Church, but marriage to one of Buxtehude's daughters was a prerequisite to taking over the job. Bach declined, and walked back home.
4. He brawled with his students.
One of Bach’s first jobs was as a church organist in Arnstadt. When he signed up for the role, nobody told him he also had to teach a student choir and orchestra, a responsibility Bach hated. Not one to mince words, Bach one day lost patience with a error-prone bassoonist, Johann Geyersbach, and called him a zippelfagottist—that is, a “nanny-goat bassoonist.” Those were fighting words. Days later, Geyersbach attacked Bach with a walking stick. Bach pulled a dagger. The rumble escalated into a full-blown scrum that required the two be pulled apart.
5. He spent 30 days in jail for quitting his job.
When Bach took a job in 1708 as a chamber musician in the court of the Duke of Saxe-Weimar, he once again assumed a slew of responsibilities that he never signed up for. This time, he took it in stride, believing his hard work would lead to his promotion to kapellmeister (music director). But after five years, the top job was handed to the former kapellmeister’s son. Furious, Bach resigned and joined a rival court. As retribution, the duke jailed him for four weeks. Bach spent his time in the slammer writing preludes for organ.
6. The Brandenburg Concertos were a failed job application.
Around 1721, Bach was the head of court music for Prince Leopold of Anhalt-Köthen. Unfortunately, the composer reportedly didn’t get along with the prince’s new wife, and he started looking for a new gig. (Notice a pattern?) Bach polished some manuscripts that had been sitting around and mailed them to a potential employer, Christian Ludwig, the Margrave of Brandenburg. That package, which included the Brandenburg Concertos—now considered some of the most important orchestral compositions of the Baroque era—failed to get Bach the job [PDF].
7. He wrote an amazing coffee jingle.
Bach apparently loved coffee enough to write a song about it: "Schweigt stille, plaudert nicht" ("Be still, stop chattering"). Performed in 1735 at Zimmerman’s coffee house in Leipzig, the song is about a coffee-obsessed woman whose father wants her to stop drinking the caffeinated stuff. She rebels and sings this stanza:
Ah! How sweet coffee tastes
More delicious than a thousand kisses
Milder than muscatel wine.
Coffee, I have to have coffee,
And, if someone wants to pamper me,
Ah, then bring me coffee as a gift!
8. If Bach challenged you to a keyboard duel, you were guaranteed to be embarrassed.
In 1717, Louis Marchand, a harpsichordist from France, was invited to play for Augustus, Elector of Saxony, and performed so well that he was offered a position playing for the court. This annoyed the court’s concertmaster, who found Marchand arrogant and insufferable. To scare the French harpsichordist away, the concertmaster hatched a plan with his friend, J.S. Bach: a keyboard duel. Bach and Marchand would improvise over a number of different styles, and the winner would take home 500 talers. But when Marchand learned just how talented Bach was, he hightailed it out of town.
9. Some of his music may have been composed to help with insomnia.
Some people are ashamed to admit that classical music, especially the Baroque style, makes them sleepy. Be ashamed no more! According to Bach’s earliest biographer, the Goldberg Variations were composed to help Count Hermann Karl von Keyserling overcome insomnia. (This story, to be fair, is disputed.) Whatever the truth, it hasn’t stopped the Andersson Dance troupe from presenting a fantastic Goldberg-based tour of performances called “Ternary Patterns for Insomnia.” Sleep researchers have also suggested studying the tunes’ effects on sleeplessness [PDF].
10. A botched eye surgery blinded him.
When Bach was 65, he had eye surgery. The “couching” procedure, which was performed by a traveling surgeon named John Taylor, involved shoving the cataract deep into the eye with a blunt instrument. Post-op, Taylor gave the composer eye drops that contained pigeon blood, mercury, and pulverized sugar. It didn’t work. Bach went blind and died shortly after. Meanwhile, Taylor moved on to botch more musical surgeries. He would perform the same procedure on the composer George Frideric Handel, who also went blind.
11. Nobody is 100 percent confident that Bach is buried in his grave.
In 1894, the pastor of St. John’s Church in Leipzig wanted to move the composer’s body out of the church graveyard to a more dignified setting. There was one small problem: Bach had been buried in an unmarked grave, as was common for regular folks at the time. According to craniologist Wilhelm His, a dig crew tried its best to find the composer but instead found “heaps of bones, some in many layers lying on top of each other, some mixed in with the remains of coffins, others already smashed by the hacking of the diggers.” The team later claimed to find Bach’s box, but there’s doubt they found the right (de)composer. Today, Bach supposedly resides in Leipzig’s St. Thomas Church.
Burrhus Frederic Skinner was one of the preeminent American psychologists of the 20th century. B.F. Skinner founded “radical behaviorism”—a twist on traditional behaviorism, a field of psychology that focused exclusively on observable human behavior. Thoughts, feelings, and perceptions were cast aside as unobservable.
B.F. Skinner dubbed his own method of observing behavior “operant conditioning,” which posited that behavior is determined solely by its consequences—either reinforcements or punishments. He also coined the term "positive reinforcement."
To Skinner’s critics, the idea that these “principles of reinforcement,” as he called them, lead to easy “behavior modification” suggested that we do not have free will and are little more than automatons acting in response to stimuli. But his fans considered him visionary. Controversial to the end, B.F. Skinner was well known for his unconventional methods, unusual inventions, and utopian—some say dystopian—ideas about human society.
1. B.F. Skinner invented the "operant conditioning" or "Skinner" box.
Skinner believed that the best way to understand behavior is to look at the causes of an action and its consequences. He called this approach “operant conditioning.” Skinner began by studying rats interacting with an environment inside a box, where they were rewarded with a pellet of food for responding to a stimulus like light or sound with desired behavior. This simple experiment design would over the years take on dark metaphorical meaning: Any environment that had mechanisms in place to manipulate or control behavior could be called a "Skinner box." Recently, some have argued that social media is a sort of digital Skinner box: Likes, clicks, and shares are the pellet-like rewards we get for responding to our environment with certain behavior. Yes, we are the rats.
2. B.F. Skinner believed that all behavior was affected by one of three "operants."
Skinner proposed there were only three “operants” that had affected human behavior. Neutral operants were responses from the environment that had a benign effect on a behavior. Reinforcers were responses that increased the likelihood of a behavior’s repetition. And punishers decreased the likelihood of a behavior’s repetition. While he was correct that behavior can be modified via this system, it’s only one of many methods for doing so, and it failed to take into account how emotions, thoughts, and—as we learned eventually—the brain itself account for changes in behavior.
3. He's responsible for the term "positive reinforcement."
B.F. Skinner eventually moved on to studying pigeons in his Skinner box. The pigeons would peck at a disc to gain access to food at various intervals, and for completing certain tasks. From this Skinner concluded that some form of reinforcement was crucial in learning new behaviors. To his mind, positive reinforcement strengthens a behavior by providing a consequence an individual finds rewarding. He concluded that reinforced behavior tends to be repeated and strengthened.
4. Some critics felt "positive reinforcement" amounted to bribery.
Critics were dubious that Skinner's focus on behavior modification through positive reinforcement of desired behavior could actually change behavior for the long term, and that it was little more than temporary reward, like bribery, for a short-term behavioral change.
5. B.F. Skinner's idea of "negative reinforcement" isn't what you think.
Skinner believed negative reinforcement also helped to strengthen behavior; this doesn't mean exposing an animal or person to a negative stimulus, but rather removing an “unpleasant reinforcer.” The idea was that removing the negative stimulus would feel like a “reward” to the animal or person.
6. B.F. Skinner taught pigeons to play ping-pong.
As part of his research into positive reinforcement, he taught pigeons to play ping-pong as a first step in seeing how trainable they were. He ultimately wanted to teach them to guide bombs and missiles and even convinced the military to fund his research to that effect. He liked working with pigeons because they responded well to reinforcements and punishments, thus validating his theories. We know now that pigeons can be trained in a whole host of tasks, including distinguishing written words from nonsense and spotting cancer.
7. B.F. Skinner's first book, The Behavior of Organisms, broke new ground.
Published in 1938, Skinner’s debut book made the case that simple observation of cause and effect, reward and punishment, were as significant to understanding behavior as other “conceptual or neural processes.”
Skinner believed behavior was everything. Thoughts and feelings were just unreliable byproducts of behaviors, he argued—and therefore dismissed them. Many of his fellow psychologists disagreed. Regardless, Skinner’s theories contributed to a greater understanding of the relationship between stimuli and resulting behavior and may have even laid the groundwork for understanding the brain’s reward circuitry, which centers around the amygdala.
8. B.F. Skinner created the "baby tender."
Skinner was fond of inventions, and having children gave him a new outlet for his tendencies. He designed a special crib for his infant daughter called “the baby tender.” The clear box, with air holes, was heated so that the baby didn't need blankets. Unlike typical cribs, there were no slats in the sides, which he said prevented possible injury. Unsurprisingly, it did not catch on with the public.
9. B.F. Skinner also developed his own "teaching machine."
You may have Skinner to thank for modern school workbooks and test-taking procedures. In 1954 Skinner visited his daughter’s classroom and found himself frustrated with the “inefficiencies” of the teaching procedures. His first "teaching machine"—a very basic program to improve teaching methods for spelling, math, and other school subjects—was little more than a fill-in-the-blank method on workbook or computer. It’s now considered a precursor to computer-assisted learning programs.
10. Skinner imaged an ideal society based on his theories of human behavior.
Skinner admired Henry David Thoreau’s famous book Walden, in which Thoreau writes about his retreat to the woods to get in greater contact with his inner nature. Skinner's "Ten Commandments" for a utopian world include: “(1) No way of life is inevitable. Examine your own closely. (2) If you do not like it, change it. (3) But do not try to change it through political action. Even if you succeed in gaining power, you will not likely be able to use it any more wisely than your predecessors. (4) Ask only to be left alone to solve your problems in your own way. (5) Simplify your needs. Learn how to be happy with fewer possessions.”
11. B.F. Skinner wrote a utopian novel, Walden Two.
Though inspired by Walden, Skinner also felt the book was too self-indulgent, so he wrote his own fictional follow-up with the 1948 novel Walden Two. The book proposed a type of utopian—some say dystopian—society that employed a system of behavior modification based on operant conditioning. This system of rewards and punishments would, Skinner proposed, make people into good citizens:
“We can achieve a sort of control under which the controlled, though they are following a code much more scrupulously than was ever the case under the old system, nevertheless feel free. They are doing what they want to do, not what they are forced to do. That's the source of the tremendous power of positive reinforcement—there's no restraint and no revolt. By careful cultural design, we control not the final behavior, but the inclination to behave—the motives, desires, the wishes.”
12. Some felt Skinner's ideas were reductionist ...
Critics, of which there were many, felt he reduced human behavior to a series of actions and reactions: that an individual human “mind” only existed in a social context, and that humans could be easily manipulated by external cues. He did not put much store in his critics. Even at age 83, just three years before he died, he told Daniel Goleman in a 1987 New York Times article, “I think cognitive psychology is a great hoax and a fraud, and that goes for brain science, too. They are nowhere near answering the important questions about behavior.”
13. ... and others were horrified by Walden Two.
Astronomer and colleague JK Jessup wrote, “Skinner's utopian vision could change the nature of Western civilization more disastrously than the nuclear physicists and biochemists combined.”
14. B.F. Skinner implied that humans had no free will or individual consciousness.
In the late 1960s and early '70s, Skinner wrote several works applying his behavioral theories to society, including Beyond Freedom and Dignity (1971). He drew fire for implying that humans had no free will or individual consciousness but could simply be controlled by reward and punishment. His critics shouldn't have been surprised: this was the very essence of his behaviorism. He, however, was unconcerned with criticism. His daughter Julie S. Vargas has written that “Skinner felt that by answering critics (a) you showed that their criticism affected you; and (b) you gave them attention, thus raising their reputation. So he left replies to others.”
15. He died convinced that the fate of humanity lay in applying his methods of behavioral science to society.
In 1990, he died of leukemia at age 86 after receiving a Lifetime Achievement Award from the American Psychological Association. Proud of his work, he was nonetheless concerned about the fate of humanity and worried “about daily life in Western culture, international conflict and peace, and why people were not acting to save the world.”