Tag: Engineers

We Gotcha

 

Anyone who uses the internet regularly has likely encountered a CAPTCHA or reCAPTCHA gatekeeper at a website requiring a login, and the puzzles they present to the user are meant to distinguish human visitors from bots, which is a good idea. Another good idea from the standpoint of Google, or Alphabet or whatever they’re calling themselves these days, is the use of unpaid labor from solvers of the puzzles to train artificial intelligence for tasks such as digitizing books or driving cars.

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A Waymo self-driving car on the road in Mountain View, California, headquarters of Google, or Alphabet or whatever they’re calling themselves these days. Waymo is a division within the technology behemoth, and logically it would be filed under “W”. Photo by Grendelkhan.

 

Ten years ago, internet users mostly encountered CAPTCHAs, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHAs were text-based puzzles, and Google put people to work solving them in the interests of both internet security and of training artificial intelligence to recognize letters and numbers in all sorts of peculiar configurations, such as might be found in all the books Google was digitizing. Now reCAPTCHAs are more common, and they are handy for training self-driving cars because they are image-based, and the images are most often of street scenes.

No doubt the engineers and executives at Google count themselves as quite clever for employing digital security puzzles to help amass the enormous amount of data necessary to train artificial intelligence without spending a penny, at least for labor. It’s a good bet most internet users are unaware of their exploitation at the hands of that technology behemoth or of other ones, like Facebook, which uses photographs uploaded by its users to train facial recognition software. Of those who are aware of what’s going on, some may not care. The technology companies, in that case, have little concern for the possibility of a public outcry over their exploitative practices; people are so eager to hand over their personal data for purposes they perceive as benefiting themselves that they don’t notice or don’t care how the companies are using the mountains of freely given information.

Artificial intelligence requires so much data to be effective that not even all the free data sneakily gleaned from internet users is enough, and therefore the technology companies have to pay some laborers, however poorly, to do the monotonous tasks necessary to train artificial intelligence for every imaginable scenario. The weakness of artificial intelligence, being nothing more than an extremely powerful computer, is its incapability of imagining scenarios outside of logic, or of imagining anything at all. Powerful as it is, it is still only a number cruncher.



John Cleese in conversation with Appian CEO Matt Calkins at a technology conference in 2018. In another video, John Cleese demonstrates the leaps of imagination and intuition that set the human brain apart from artificial intelligence.

 

Google’s reCAPTCHA sometimes gets the wrong message from its images, for example by insisting a diagonally striped no parking zone is a pedestrian crosswalk. There is no arguing with it. All the internet user can do in order to move on then is play along with the error or try reloading a different image. One has to wonder if training one’s replacement for free is not enough of an indignity without also suffering the insult of having to humor an insufficiently intelligent automaton that is nonetheless a humorless and dully unimaginative know-it-all.
— Techly

 

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It’s the Journey That Matters

 

“We set sail on this new sea because there is new knowledge to be gained, and new rights to be won, and they must be won and used for the progress of all people.”
— from President John F. Kennedy’s “Race for Space” speech delivered before students and faculty of Rice University in Houston, Texas, on September 12, 1962.

 

Yesterday was the 50th anniversary of the walk on the moon by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin, an event witnessed on television by people around the world. The achievement after a decade of hard work and dedication by NASA personnel was enormous, of course, and as a prestigious accomplishment in science and engineering it has not been topped in the 50 years since July 20, 1969.

 

The feature that stands out after a half century is how little the actual landings on the moon, by Apollo 11 and by subsequent missions, has mattered in the lives of people on Earth. It was all the technological and scientific discoveries and advancements made along the way to landing astronauts on the moon which have made the most impact on the lives of many people. Giving astronauts prominence before the public and making them integral to the Apollo program garnered public support while increasing the expense and difficulty of the missions. Having the Apollo astronauts bound around the surface of the moon for a few hours and gather up some rocks made a comparatively small impact on the wealth of scientific and technical knowledge NASA reaped from the program, while keeping up public interest and support.

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“Earthrise”, a photograph taken by astronaut Bill Anders aboard Apollo 8 on December 24, 1968.

Of all the insights common people gained from the Apollo program, perhaps none made a greater impression overall than the famous “Earthrise” photograph taken by Apollo 8 astronaut Bill Anders on December 24, 1968. In the foreground is what astronaut Buzz Aldrin would seven months later call the “magnificent desolation” of the moon, and viewed from a distance of about 240,000 miles, in a perspective never before seen by anyone on Earth, is the partially sunlit Earth, our home, appearing fragile and jewel-like in the black emptiness of space.

That picture and the emotions it stirred gave impetus and urgency to the environmental movement, and before the end of 1970 people around the world recognized the first Earth Day and in the United States the Environmental Protection Agency began operations. To strive for a decade to land astronauts on the moon, increasing knowledge and spurring progress all along the way, and then to have those astronauts turn around and look back toward the earth, sharing that view with everyone, that was perhaps the greatest legacy of the Apollo space program.
— Techly


The opening sequence of the 1982 meditative documentary Koyaanisqatsi depicts the Holy Ghosts portion of the Great Gallery pictograph in Horseshoe Canyon in Utah, followed by the liftoff of Apollo 11 from the Kennedy Space Center in Florida on July 16, 1969. Godfrey Reggio directed the film, Ron Fricke was the cinematographer, and Philip Glass wrote the music. The title comes from the Hopi language and the film makes oblique and direct references to Hopi prophecies, or warnings; and while the Great Gallery pictograph did not originate with the Hopi, they believe it and other pictographs in the Four Corners region are the work of their ancestors and they hold them sacred.

 

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Witnesseth

 

Witnesseth: Old English, meaning bear witness to the following or take notice.
— paraphrased definition from Black’s Law Dictionary.

When teams of scientists and engineers worked together for years to bring out the first ever image of a black hole last week, some of the excitement was drained off by internet trolls belittling the contribution of one computer scientist, a woman named Dr. Katie Bouman. Dr. Bouman was initially credited online by the Massachusetts Institute of Technology (MIT), where she had earned her master’s degree and doctorate, with an outsize role in the great work, probably due to nothing more than an excess of exuberance for the achievement of one of their own when they first heard the news. If Dr. Bouman had been male, it is doubtful the trolls would have seized on MIT’s innocent overstatement and launched their campaign of vitriol geared toward minimizing her contribution and smearing her character.


Female scientist from DAST
From the 1983 Draw-a-Scientist Test, one of the relatively few depictions of a female scientist. Photo by Yewhoenter.

The time for minimization of online trolling has long since past. The usual advice to ignore them has not worked. The situation with trolls is like what happens in an eighth grade classroom when a cadre of unruly boys – they are almost always boys – sits at the back of the class disrupting the learning the majority of students and the teacher would like to conduct peacefully and constructively. Has ignoring those jackasses ever worked? No, it has not. The only remedy that works is invocation of real consequences for their actions. The online world is no different. Social media platforms such as Facebook, Twitter, and YouTube claim they are not interfering with free speech rights when they give free rein to trolls, but they are ignoring the unique qualities of the internet megaphone.

Almost all trolling is anonymous, and making personal attacks while hiding behind anonymity calls up a gray area in slander and libel law. The Tweeter-in-Chief obviously makes all his egregious political and personal attacks without anonymity, and in some tweets he barely conceals incitement to violence against people he dislikes for political or personal reasons. Still, Twitter has not shut down his account. It used to be that one vile person could pollute only a small portion of the world with odious views; now that vile person can disseminate ugliness over the entire world in an instant, and millions more can take up the banner of sexist, racist, or white supremacist internet comments within a day or two. The opposite is also possible, of course, and good things can come about. To make internet freedom rights work, there have to be referees protecting the interests of the majority who would prefer good outcomes without the distraction of constant juvenile disruption, just as in a classroom where a teacher backed up by the school administration and by parents can rule counterproductive behavior out of bounds, restoring the peace and order necessary for instructive dialogue.
— Techly

 

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All Bottled Up

 

The great engineering writer Henry Petroski, who has explored subjects as mundane as pencils and as sweeping as American infrastructure, always brings out the human element in both the design and the use of engineered products, and it is that aspect of his work which makes it fascinating instead of dryly technical. Mr. Petroski reminds us that the products of engineers and designers are wrought by fallible humans for the use of other fallible humans, and since humans have not changed greatly over the past 300 years or 3,000 years, then ultimately engineering and design are always processes of back and forth and of trial and error, even after a university education has instilled thousands of years of experience into its practitioners. Things can and do still go wrong, largely because of human error and human desires.

 

Take the humble bottle cap, or “crown” as it is known in the trade, and twist it off. Can’t do it? Then it’s a pry off cap, or crown, and requires an implement for dislodging it. Why the different designs? Isn’t there a best practice, and if so why don’t all makers of products put into bottles adhere to it? Specifically, bottlers of beer, some of whom use twist off caps, while others use pry off caps. Isn’t beer beer, no matter how it’s bottled? According to craft beer makers, no. William Painter, an American mechanical engineer, invented the pry off cap in 1892, and it remained the standard means of capping bottled beers and sodas until the 1960s, when twist off caps with good sealing capacity came on the market.

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The prop genie bottle, with stopper, from the 1960s television show I Dream of Jeannie. Photo taken in June 2011 by Eva Rinaldi.

Major bottlers soon replaced their pry off caps with twist off, and customers were satisfied since the beers and sodas they bought were not flat due to carbon dioxide leaks going out of the liquid inside the bottles. There may have been slight leaks of oxygen into the bottles, but not enough that the average drinker of major brand American beers would notice. When craft beer makers first came onto the market in a big way in the 1980s and 1990s, many of them decided to eschew twist off caps in favor of pry off caps for several reasons. The machinery for pry off caps was cheaper than for twist off caps, which suited small scale brewers operating on tight margins. Then there was the slight difference in the tightness of the seal between pry off and twist off, which was more of a factor thirty years ago than it remains today after improvements in twist off cap seals. Lastly there was the impression that twist off caps were for cheap, indifferent domestic lagers, while most European imports still came with old fashioned crowns or stoppers, and an impression of higher quality along with their higher prices, an impression which lingers to this day.

It is perhaps the last reason, the purely psychological one, that retains a foundation for using pry off caps, and of course it amounts to pure snobbery. The snobbery over twist off caps is even worse when it comes to consumer perceptions about wine. The craft brewers contradict themselves, too, when they plump for selling their beers in cans instead of bottles. They claim, with good reason, that because of improved linings for aluminum cans there is no longer any reason for consumers to be prejudiced against buying beer in cans. Fair enough, but just as with twist off caps for bottled beer, there remains the perception among consumers that beer in cans is inferior not merely because of possible taint from the container, but because for years beer in cans was the cheap, low quality preference of working class people.

Chubby Checker had a big hit in 1961 with “Let’s Twist Again”, the follow up to his 1960 hit “The Twist”. Some folks may feel the follow up is the better song, but it doesn’t matter much in the end and comes down to personal preference.

Let’s stop pretending then and admit the main reason to crown a beer bottle with a pry off cap is to send a signal to the consumer that what’s inside the bottle is quality stuff. It may well be, but snobbery around rituals should not be the determining factor. That’s as bad as wine snobs who get upset over twist off caps even though vintners and wine aficionados alike claim twist off caps are an improvement to the quality of wines not meant to be aged extensively but drunk within a few years of bottling. And as to craft sodas in bottles with pry off caps, that is merely an excuse to charge a premium for a product of dubious value. At least beer and wine producers can lay claim to some health benefits for their nectars, despite their consumption by mere mortals who allow their preconceived notions to get in the way of enjoying a good drink.
— Techly

 

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Everyone Knows it’s Windy

 

The Trump Baby balloon that floated over London, England, last Friday was the culmination of efforts on the part of graphic designer Matt Bonner and a team of political activists and balloon fabricators who wanted to make a statement about the petulant and childish temperament of the current American president. As a mocking indictment of his destructive behavior, it is an effective piece of work. The activists plan to have the balloon shadow it’s real-life angry baby model as much as possible wherever he travels around the world.

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The Trump Baby balloon rises over London’s Parliament Square. Photo by Michael Reeve.

Large balloon caricatures came about with the work of Tony Sarg on the Macy’s Thanksgiving Day parade in the 1920s. Mr. Sarg was a German-American puppeteer who took the concept of marionettes and simply turned them upward and inflated them, though the comparison ends there because the guide ropes for a balloon caricature do no more than tether and control them, as opposed to the thin wires that puppeteers use to manipulate the movements of small marionettes.

The technology for creating large balloons with discretely modeled characteristics like arms and legs has changed over the years, of course, with the biggest difference coming in the planning stage when designers can now model the character with 3D animation on a computer, eliminating some of the trial and error involved in the design and fabricating of earlier balloons. Experienced engineers at the fabricating plant can then examine those computer designs and make or suggest alterations that will improve the balloon’s stability when floating overhead and streamline its manufacturing, all without greatly changing if possible the designer’s intent.

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The statue of Winston Churchill in London’s Parliament Square. Photo by Braveheart.

These protest balloon caricatures appear to be gaining popularity, and it’s easy to see why since they fit the criteria of making an impact over a wider area than a hand-held placard and they can show up around the world as needed with a relatively small support team. An excellent graphic design can also generate revenue for the protest movement through merchandising. The main difficulty in deploying the balloons is in securing permission from government officials, which ought not be that much different from acquiring the usual permits for a protest other than stipulating a maximum height for the balloon when it is in the air.

Since the balloons are not intended to float higher than about 50 feet, conflicts with aviation should be minimal. The main obstacles aloft to safe deployment, besides high winds, are things arising from the ground such as power and light poles and electrical and communications cables. Let’s hope these symbols of protest continue floating freely wherever there’s enough helium a need for them, as a reminder to everyone that many powerful public figures need to have the air let out of them, not necessarily for their benefit since it can be all but impossible to deflate their often massive egos, but for ours as citizens in a still relatively free society.
— Techly

 

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One Man’s Trash Is Everybody’s Problem

 

This summer, archaeologists from The Public Archaeology Facility of Binghamton University in New York State are digging up the site of the 1969 Woodstock Music and Art Fair near Bethel, New York. They hope to uncover an accurate and comprehensive scheme of the place as it was originally laid out for that enormous event nearly 50 years ago, and then turn over their findings to the museum on the site in time for the 50th anniversary in August 2019. Besides broken glass and other relics from the event, the archaeologists dug up numerous pop tops from aluminum beverage cans.

 

Unlike the stay-tab which replaced it in the late 1970s, the pop top tabs from the late 1960s and early 1970s were meant to be pulled entirely off the top of the can by the consumer. The consumer then had a piece of waste in addition to the waste the can itself would become after emptying, and many consumers simply dropped the pop tops on the ground, where they not only littered the environment but on account of their sharp edges became a safety hazard for anyone in bare or lightly shod feet, as Jimmy Buffett noted in his song “Margaritaville”. Some people dropped the pop tops into the can either while they were drinking from it or afterward, and then some of those people were unfortunate enough to swallow the pop top or otherwise injure themselves when it resurfaced during their drinking.

Litter trap
A litter trap on the Yarra River in the vicinity of Melbourne, Australia. Photo by Biatch3.

 

When a Reynolds Metals engineer named Daniel F. Cudzik invented the stay-on-tab, or Sta-Tab, in 1975, he solved the littering and safety problems of pop tops. Some inconsiderate people still tossed the cans wherever they liked when they were done with them, and unfortunately it appears a certain percentage of people like that will always be among us, but the problems originating from improperly disposed cans have lessened since the 1960s with the adoption of better designs and recycling programs. Since then, and particularly after bottled water took off in popularity in the 1990s, plastic beverage containers have taken over from aluminum cans as a major littering and safety problem.

Engineers and designers have created biodegradable water bottles in the past several years, but so far the bottled water industry has not embraced their inventions, and may never do so without consumers pushing themselves and the industry in that direction. Part of the reason for delay is the relatively abstract nature of the problem for many consumers. Yes, empty plastic water bottles may litter roadsides, where they are unsightly, but they don’t really pose a physical danger to people, unlike aluminum pop tops and cans with their sometimes sharp edges. The physical danger from plastics all seems to happen to animals, many of them far away and out of sight, such as the ones who live in the oceans, where all that plastic garbage ends up and lingers for decades. It was only recently that scientists discovered we, like our animal cousins, are also ingesting plastics, though in our cases we are more dainty in our discernment in that we choose only to take in micro-plastics, meaning those we cannot see. What goes around, comes around, and there’s no escaping it.

In Mike Nichols’s 1967 film The Graduate, Mr. McGuire, played by Walter Brooke, has some advice for Ben Braddock, played by Dustin Hoffman. In a later scene, Hoffman’s character floats on a raft in the pool at his house and sips a beverage from a can which has two v shaped openings in its top, the marks of having been opened with a can opener, or church key, the most common way to open such a can before pop tops became widely available on beverage cans in the mid 1960s.

Most people can be coached to some degree to change their behavior, and once they are understand viscerally that a problem exists because of their past behavior, many of them can become open to change. They have to feel the problem personally, though, because an abstraction doesn’t always get through to them. A minority of others are hardheads, and little can be done to persuade them to change their ways beyond legal sanctions and public shaming. The mounting problem of plastic litter shares this model of personal and public behavior with the looming dangers of a warming climate. For too many people the problems remain abstractions because the effects can be distant, indirect, or slow moving. The rest of us can’t wait for those people to come around, because they may only do so when they are up to their necks in seawater while standing in their front yards, fighting off all the plastic junk bobbing in the water, and obstinately refusing to reconcile their beliefs with what they see and feel around them.
— Techly

 

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An Ounce of Prevention

 

The American system, and perhaps the American character as well, has always favored coping with the damage from disasters as they come over doing all that can be done beforehand to mitigate the severity of damage. The insurance industry is aligned toward dealing with the aftermath rather than encouraging preventive measures, as is the government, which tends to label regulations designed for prevention as socialist intrusions. It’s the same philosophy that guides the economic system, which is all for free market capitalism on the front end when businesses are making profits for the few, but resorts to socialism on the back end when things go sour and losses are then spread out among the many. “Heads I win, tails you lose,” says the Wall Street tycoon, and friends in government chime in “Yea, verily.”

 

Unrestricted urban and suburban development covers acreage that drained itself adequately with concrete and asphalt that does not absorb water. That seems obvious, and the necessity for a drainage system capable of handling all the runoff also seems obvious. Certainly there are some events, such as the unprecedented rainfall in Houston from Hurricane Harvey, that would stretch any drainage system to the breaking point. Extraordinary events require extraordinary preparation, a methodology well known among engineers, who are trained to design and build structures and systems to withstand the extraordinary. Engineers’ best efforts can be hamstrung, however, by ideologically and greed driven government leaders and business executives, the effect of which can be seen when disaster strikes and destruction of life and property is greater than it needed to be.

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Dynamiting through a levee during the Great Mississippi Flood of 1927 to create an artificial crevasse at Caernarvon, St. Bernard Parish, Louisiana, 14 miles below New Orleans. The crevasse was created to take pressure off levees at New Orleans. Archival photography by Steve Nicklas.

The acknowledged masters of hydro engineering, the Dutch, have recently changed their philosophy about coping with excess water from staving it off to flexing with it. Bend, to keep from breaking. That has always been the way with nature, of course, where coastal wetlands have served to absorb the brunt of ocean surges, and where floodplains served as safety valves for swollen rivers. Holding water back with fortifications has always been expensive and unreliable. Water is relentless, and it will find a way.

 

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A flooded town on the lower stretch of the Mississippi River in 1927. Photo from the National Archives and Records Administration.

Creating concrete and asphalt jungles willy nilly without regard to anything other than the almighty dollar is foolishness, and ultimately a price will be paid. In the American system, unfortunately, that price is often borne by the society as a whole, and especially by the poor, but certainly not by the wealthy or by the government leaders who created the mess. Breaking up the concrete and asphalt jungle with permeable pavement, a construction practice that has been around for over fifty years and needs to be used more widely, is one way to forestall some urban flooding. Installation costs for permeable pavement are higher than the traditional kind, but it has other benefits and cost savings that offset the higher up front price tag. It’s not a perfect solution, but nothing can be. It’s a step in the right direction.

One of the arguments some business people and their mouthpieces in government often advance against green methods applied to development are that they create too much red tape, leading to a bad environment for business and a net loss of jobs, besides being downright socialist, which of course is an accusation that is supposed to make all the Greens (environmentalists, tree huggers – choose your own epithet) run away and hide themselves in shame. Too bad. If the true costs of bad environmental practices were borne by the businesses and governments that engage in them, they would change their tune.

A 1974 song written and sung by Randy Newman about the Great Mississippi Flood of 1927, and about American society.

If businesses paid their workers a living wage, fewer of those workers would need to rely on government assistance to make ends meet. If businesses that made money here and took advantage of the national infrastructure were required to have corporate offices here, and therefore required to pay their fair share of taxes to help support infrastructure improvements, then maybe the country wouldn’t be falling apart while a select few get obscenely rich at the expense of everyone else. If, in other words, we stopped allowing some businesses and their allies in government to slough off hidden expenses on society at large, we could make progress toward a less dangerous future. But it’s going to take a change of heart, of character, to turn this backwards system around and look at green development as the only sensible way forward for everyone, instead of being led by the nose by those whose view of development looks backwards and serves only themselves.
― Izzy

 

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