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Saturday, March 05, 2022

A HOLE IN THE HEAD, Phineas Gage

I suppose the most unhelpful way to measure the experience of Phineas P. Gage was with phrenology.  Practitioners, like the American Orsen Squire Fowler, would run their fingers over the bumps on your head and divine your occupation, and character flaws.  But as Fowler acknowledged, "....phrenology is either fundamentally true or else untrue..." - a statement, which standing alone,  is undoubtedly true. But the ultimate disproof of phrenology would be provided by the words, "Phineas Gage".
Phineas was originally an Egyptian title, meaning a dark or bronze skinned oracle. He first appears in the Old Testament  (Numbers 25, verses 7-8), as a priest's son who spies the Hebrew prince Zimri entering the Tabernacle with a Midianite woman. In a fit of offended religious passion, Phineas runs them both through with a spear. For this double murder, Moses rewards Phineas. Not something  Jesus would have done, certainly.
His family name was English. Almost half of all modern English words were adopted from the French spoken in Normandy in 1066.  This Old French was mostly based on the everyday language spoken by Roman soldiers. In their Vulgate Latin a "jalle" was a measure of liquid, equal to a gallon, and a "jalgium" was the stick or rod inserted into an amphora to measure how much wine was left. After the Great Vowel Shift" at the end of the Middle Ages it became  "gaunger" and was shortened to "gauge". Thus a gauge is a standard of measurement, or a tool used to measure. And by a happy coincidence, those two words describe the Phineas Gage perfectly - an oracle of measurement. If unwilling.
In 1823 Phineas P. Gage was born in the southern New Hampshire village of Lebanon. He grew into a strikingly handsome young man, and a natural leader. At 24 years of age he became a "Navvie" for the Burlington and Rutland Railroad. The term was borrowed from canal builders who plotted their work cross-country by compass. Inland navigators they were called. Phineas quickly rose to the level of foreman, and was entrusted with the dangerous job of blasting through the hard New England granite to ensure a level road bed for the rails.
In 1825 Englishman George Stephenson's locomotive "The Rocket" took less than two hours to haul 36 wagons of coal nine miles to the docks on the River Tees. His steam locomotive was not only a revolution in speed, but also reduced transportation costs by two thirds. George had set his new rails four feet eight and one-half inches apart because that was the "gauge", or measure of the old rails, used when the wagons were pulled by horses. 
The next generation of rail moguls literally followed in Stephenson's tracks. Of course, George had since improved on his design, adding six inches width for increased stability. But rather than replace the 1,200 miles of substandard rails already in use, the royal commission of 1845 decreed that four feet eight and one-half inches would be the "Standard Gauge" for Britain, and eventually most of the rest of the world. That same year, 1845, George Stephenson, "Father of the railways" married for the third time. And shortly thereafter he died.
Three years later, on Wednesday 13 September, 1848,  a Rutland and Burlington Railroad construction crew, headed by the 25 year-old foreman Phineas P. Gage, was preparing a new road bed outside of the little mill town of Cavendish, Vermont.  Each member had a simple job, which is to say their collective task was a technically complicated jigsaw puzzle of mundane occupations, which when combined in a specific order, changed the world.
In this case, an engineer would determine where rock was to be removed. Other men would drill a hole into the rock. Phineas Gage would then pour a measure of black powder into the hole. Then he would pour a measure of sand on top of the powder, and firmly tamp it down.  Then Phineas would insert a fuse through the sand into the powder. Then he would repeatedly drop a 35 pound, three and a-half foot long iron tamping rod into the hole to compact the charge. Finally, Phineas would light the fuse.
After the resulting explosion, workers would remove the broken rock while the engineer determined where the next charge would be placed.
Toward the end of a had day's work, at just about 4:30 P.M., Phineas ordered his weary drilling team to take cover yet again.
Again he poured black powder into the drill hole, but in haste this time he forgot to add the sand. So when he shoved down the iron tamping rod, it sparked against the granite. And without the insulating sand, that set off the black powder.
There was a sharp loud crack. In something less than one second, the 35 pound rod was driven out of the hole, penetrating just below Gage's left cheek bone, destroying his left eye, plowing through his brain and blasting out the top of his skull. 
The tamping rod landed 80 feet away, smeared in blood and brain matter.. The startled crew rushed to Phineas' assistance and found him awake and alert. (Below, A), but stunned.
With assistance Phineas clambered aboard an ox cart, and suffered the jarring forty-five minute long, three quarters of a mile ride back to his boarding house (above, T)  in Cavendish. , where he waited on his front porch for an hour for the arrival of Dr. Edward  Harlow.
 "I first noticed the wound," wrote the good doctor, "before I alighted from my carriage, the pulsations of the brain being very distinct." 
The doctor recorded that his patient had a pulse of 60, was breathing regularly and his pupils were reactive. He reported no pain. "Mr. Gage...was relating the manner in which he was injured to the bystanders," wrote Dr. Williams, ".(and then) got up and vomited; the effort...pressed out about half a teacupful of the brain, which fell upon the floor."  After an initial exam, Dr. Williams escorted Gage to the local hospital.  Over the next 24 hours Gage slipped into a coma, and his condition worsened until Williams lifted open the skull again and reported a "mold" growing on the brain. Williams wiped this away, and replaced the skull fragments. After that Phineas quickly  improved, woke up and appeared to recover fully, except for the missing left eye. 
The tamping rod had performed the first recorded frontal lobotomy in modern history on Phineas Gage's brain, disconnecting and destroying that part of his mind which dealt with "....future consequences... chooses between good and bad actions... (and) override(s) and suppress unacceptable social responses..." (Wikapedia - "Frontal Lobe"). Patients subjected to a frontal lobotomy do "...not respond to imaginary situations, rules, or plans for the future...pursued immediate gratification without regard for consequences.... (and) tended to be distracted by immediate stimuli" In addition, the patient displays "an empty euphoric effect...(and) can get unusually aggressive and tends to use puns a lot." In other words, Phineas Gage was a new gauge.
Despite occasional setbacks, Phineas was able to travel the thirty miles to his mother's home, in Lebanon, New Hampshire in time for Christmas, 1848.  He returned to Cavendish in April of 1849, and Dr. Harlow noted "his physical health is good, and I am inclined to say he has recovered. Has no pain in (his) head, but says it has a queer feeling which he is not able to describe."  Phineas' cryptic response brings to mind the 12 year old boy who was subjected to a frontal lobotomy over a century later, in 1960. He later told an interviewer, "I've always felt different - wondered if somethings missing from my soul."
Phineas never worked on railroads again. Briefly he tried selling his story via public speaking engagements, and displaying his rod. But handsome though he still was, that career never suited him. Despite rumors that he appeared in P.T. Barnum's museum in New York, there is no evidence he ever did. Instead, in 1851, he found a job at the Hanover Inn in Dartmouth, New Hampshire, as a stable hand and coach driver. Perhaps he found animals a better gauge of Gage than humans.
Then in 1854 he went to work for another stage line , this time in Valparaiso, Chile. He took with him his "constant companion", that iron tamping rod. Phineas held down his new job for seven years, far longer than you would expect from an unpredictable violent man. Those too are just rumors.
But one of the occasional side effects of a frontal lobotomy are seizures caused by scar tissue within the brain. And those now struck Phineas. In 1859 Phineas rejoined his mother, sister and her husband, who were now living in California. He got a job as a farm hand in Santa Clara County, at the southern end of San Francisco Bay. But the seizures got worse, and on 21 May, 1860, he died of what the doctors called complications of epilepsy, six months short of twelve years after he forgot to load the sand atop the black powder.
Phineas Gage died just as the American Civil War was exploding. Over the next four years the number of survivors with brain injuries multiplied.
Doctors now had patients and skulls aplenty to examine, and upon reflection they reached several conclusions. First, it was clear that the bumps on the top of the head were not denotative of anything going on inside the skull. Phrenology was bunk. But the disabilities of various head wound survivors was proof that different sections of the brain did perform different functions.
And third, the old adage that medicine is the search for profit after death, was confirmed when in 1866, Dr. Harlow convinced Phineas' sister and brother-in-law to disinter Phineas just long enough to chop off his head and ship it and the tamping rod back to Boston. Or so claimed the doctor. There  Harlow used it as an exhibit in his second (and more colorful) paper. on his most famous patient.  It was this version of events which made Phineas famous as the the man who reset the Gauge  for brain injuries.
Meanwhile the standard gauge of American railroads is still just four feet eight and one-half inches. I guess some things never change.

                                    - 30 - 

Friday, March 04, 2022

COMET Chapter Seven - Old Accidents

 

I invite you to watch as the brazen brown and yellow aircraft designated “dash 80” slowly begins it's takeoff roll down runway 15/33. The four Pratt and Whitney turbojet engines, individually suspended below the 35 degree sweptback wings, roar as they produce 44,000 pounds of thrust. 

At 120 miles per hour pilot Alvin “Tex” Johnson firmly pulls back on the control column, and 200,000 pounds of aluminum alloy, wires, rubber tubing, kerosene  and ambitions float off the asphalt. It is 2:14 on Thursday afternoon of 15 July, 1954. The air above Lake Seattle is populated with puffy white clouds. And as the twin four-wheeled bogie tricycle gear of Dash 80 fold neatly into the underbelly, the grounded Comet jet transport becomes obsolete. 

When he landed, 2 ½ hours later, “Tex” said, “She flew like a bird. Only faster.”

Douglas Aviation had dominated the commercial aviation market since 1933, with their DC 3 (above) family of piston multi-engine passenger planes. 
Their competitor Boeing survived thanks to their military contracts -  beginning with 17,000 B-17's built between 1935 and 1945.
This was followed by almost 4,000 B-29 SuperFortereses built between 1942 and 1945.
Then Boeing built 2,000 swept wing B-47 Strato-jet bombers between 1948 and 1963.
 Finally, beginning in 1951, Boeing supplied the U.S.A.F with 744 swept wing B-52 StratoFortress, still flying more than 70 years later.
So, when Bill Allen, president of Boeing Aircraft Company, saw the de Havilland Comet at the 1949 Farnborough Air Show (above), he was not impressed. But what the Comet high lighted to the Boeing engineers was that jet transports promised speed and reliability to carry anything you could fit in the pressure hull.
The United States Army Air Corps had been experimenting with mid-air refueling since 1927. Developments were slow, but by 1948 the USAF had two squadrons of beefed up double body B-29's Tankers, which Boeing initially called the 367s and which the U.S. Army relabeled the B-50 (above)
The problem was the jet bombers could not comfortably fly slow enough to be serviced by these piston driven flying gas tanks.  Also, at higher altitudes where the B-50's labored, the air was “smoother”, making refueling easier. Obviously the Air Force was going to need a jet powered tanker. And that was Boeing's initial justification to nervous investors when, in 1952 Allen asked them to risk 25% of Boeing's total capital, some $16 million, to developing a jet tanker. But carrying fuel was only part of Boeing's great plan.
Boeing labeled their new aircraft Project 367-80. Eventually it became known simply as the Dash 80. It was big - 128 feet long as opposed to the 93 foot long Comet – 130 foot wingspan to 115 feet for the Comet, and a wing area of 2,400 square feet to 2,015 square feet for the Comet. All that extra wing space, devoted entirely to fuel, gave the Dash 80 a range of 3,530 miles to the Comet's 1,500.
The plane was so big a passenger version was projected to carry at least 140 seats, five abreast, compared to the Comet's 43 seats at two abreast, thus reducing the operating cost to 25 cents per seat-mile for every gallon of kerosene the four engines burned. Not to mention, the Dash 80 could cruise 100 mile per hour faster than the Comet. It looked like democracy with wings.
Boeing swept the wings of the Dash 80 back to 35 degrees, which they knew would be stable because that was the same angle as the wings on their B-26 and B-52 jet  bombers. And they avoided new engine development by using the same engines used in the bombers, and slung them beneath the wings for easy maintenance, and to free up wing space for fuel, just like the bombers. All of this would reduce the need to retool when and if the various versions of the passenger plane went into production.
Boeing also learned from the well publicized crashes on Comet take offs by designing forward and rear facing extensions (flaps, tabs, ailerons and spoilers) on the swept wings of the Dash 80 (above). These allowed the big bird to stay in the air at speeds as low as 80 miles per hour. 
To allow the passenger version to use existing airfields of 7,000 feet, bucket thrust reversers were included, to slow the jet from the landing speed of 150 miles per hour to a dead stop within 6,000 feet.
However, the Dash 80 was neither a tanker nor a passenger plane. It was a test bed for both. That did not matter, it seemed, because almost before the 2 ½ hour maiden flight had landed, the Army ordered 29 of the new, as yet  un-built planes to be labeled the “K” (meaning tanker) and “C” (meaning transport) -135 (above).  Another 250 KC-135's were quickly added to the order, the planes first reaching service in August of 1955.
The airlines, however, showed little interest, in part because 1954 was a recession year, but also because the disasters of the Comet were still fresh in the public mind. Few seemed eager to risk their lives on a passenger jet. So the Dash 80 flew on, amassing data to improve the design.
Meanwhile, on Tuesday, 1 February, 1955, the the British Civil Aircraft Court of Inquiry into the crashes of Comet Yoke Peter and Yoke Yoke was issued by the Royal Aircraft Establishment. The fault, they had determined, was “...metal fatigue, caused by the repeated pressurization and de-pressurization exacerbated by the thin aluminum alloy skin...” and the squared off windows which intensified pressures at the corners.
De Havilland responded with a public statement. "Now that the danger of high level fatigue in pressure cabins has been generally appreciated, de Havillands will take adequate measures...we propose to use thicker gauge materials...and to strengthen and redesign windows and cut outs and so lower the general stress to a level...(which) will not constitute a danger.” The company immediately began the work, but it would be 3 years before the redesigned Comet 4 could re-enter commercial service.
It was not until 2015, when the 50 years of silence required by the British government Secrets Act had expired that the full truth of the Comet hull failures was revealed. Said the originally unredacted report, “...metal fatigue, attributed to raised stress at the squared-off window corners, actually had another cause....the structure had been designed to be bonded – glued, in fact – by...the Redux process...” 
However, “...During production...de Havilland chief designer, R.E. Bishop (above)... decided that these areas should...be reinforced...by normal aircraft riveting...It was this 'belt and braces' riveting...that caused the failures. The cracks emanated from the rivet holes in the corner area – not from the material in the corner structure itself.”
But it was Tex Johnson (above), the Boeing test pilot,  who drove the final nail in the Comet coffin. 
The stage was the annual Gold Cup hydroplane races to be held on Saturday 6 August, 1955 - light high speed boats powered by air craft engines, racing at 80 to 90 miles an hour across the surface of the water and throwing 30 foot high rooster tails behind them. Viewed by perhaps 200,000 spectators from the bluffs above Lake Washington, in 1955 for the first time the event was broadcast on live television.
That same week, The International Air Transport Association and the Society of Aeronautical Engineers were both holding their conventions in Seattle. So Boeing's Bill Allen invited a large number of aviation industry folks to attend the races. He had also coordinated with the Dash – 80 team to do a fly by.  That was all Tex Johnson was supposed to do - fly by.
But Tex had heard that Douglas aircraft, which had started a crash program to build their own slighter smaller and slightly slower jet passenger plane, the DC 8 (above), was telling potential customers that the Boeing jet was unstable. 
Tex (above left) felt obliged to prove the critics wrong.  As the Dash 80 was in route to Lake Washington that morning, he told his co—pilot Jim Gannet (above, right) , “Hey Jim, I'm going to roll this airplane over the Gold Cup." Gannet suggested if he did, Jim Allen would fire him.
Johnson then steered the big jet down to 500 feet for the east bound fly-by.  And as he passed the spectators, Tex pulled up slightly and slipped the aircraft into a gentle roll to the right, 360 degrees - a perfect barrel roll. (Barrel Roll).  It was perfectly safe, according to “Tex”. “The airplane does not recognize attitude,” he later explained, “providing a maneuver is conducted at one G...The barrel roll is a one G maneuver and quite impressive, but the airplane never knows it’s inverted.” 
Then, on the west bound pass, he did it again.  During the second roll the flight engineer, the only other person on board, snapped a photo of the Bill Allen's $16 million gamble upside down less than a thousand feet above the city of Seattle (above).
The gamble worked. Less than 2 months later, on 13 October, 1955, Pan American World Airlines ordered 20 of the newly designated Boeing 707 jets, to replace their cancelled Comet orders. 
The only fly in the ointment landed when Douglas upgraded the engines on their DC-8's, forcing Boeing to follow suit. That delay prevented the first 707 commercial flight until October of 1958. But by 1956 even British Overseas Airway Corporation had ordered Boeing's big jet. Until the production lines shut down in 1978, Boeing built 865 various versions of the 707.
The British government remained loyal to the de Havilland Comet, and in March of 1955 British Overseas Aviation Corporation ordered 19 of the new Comet 4's (above). To extend its range, the Comet 4  had a fuel pod perched in each wing, and the wings themselves were bigger, as were the engines. 
On 4 October, 1958 it was a Comet 4 that flew the first London to New York jet flight, with a westbound refueling stop at Gander, Newfoundland. But the new Comets could only squeeze 99 passengers into the larger pressure cabin, and de Havilland's plane was still 50 miles per hour slower than either the Boeing 707 or the DC-8.  De Havilland sold only some 76 Comets, before production was stopped in 1964.
In 1960 de Havilland itself was acquired by Hawker Siddeley in a government brokered sale and the name de Havilland faded from British aviation. 
The Canadian government bought the subsidiary de Havilland Canada, and for the next 20 years produced a successful line of short take off and landing civilian aircraft. But in 1984 the conservative government of Brian Mulroney privatized the company, and in 1986 de Havilland Canada was bought by Boeing. Despite promises to Canada, Boeing closed the plant and broke up the jigs and all production equipment, and that really was the end of de Havilland.
Today, (2021) Boeing is stull reeling from their own self-engineered 737 Super Max debacle - 2 crashes and 346 dead, caused by a preventable failure  - followed by the COVID 19 pandemic which gutted air travel for two years.  
Boeing in 2022 seems to be facing a similar fate to the one de Havilland faced in 1954, building airplanes nobody wants to fly aboard. 
As one of the Farnborough engineers pointed out back in 1954, ‘There are rarely new accidents, just old accidents waiting for new people to have them.”
- 30 -

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