Category:
Science

Anthropometry of Airline Stewardesses

The research study "Anthropometry of Airline Stewardesses" consists of detailed body measurements of 423 stewardess trainees. It was paid for by the FAA and released in March 1975. The trainees were from the American Airlines Stewardess Training Academy in Fort Worth, Texas.

The justification for the study was that knowing the body measurements of stewardesses might help engineers design better seats and safety equipment for them. But what the study really seems to demonstrate is that in the early 1970s airline stewards were expected to be young, thin, female, and single. None were older than 28. None weighed more than 145 lb. Only 26 were divorced. The rest had never been married.



The study attracted the scorn of Senator William Proxmire. Details from a Reuters article in The Calgary Herald (Aug 21, 1975):

A $57,800 study has told the government that stewardesses all stack up differently — from nose widths to knee fits and various areas in between.

Senator William Proxmire says the disclosures neither enlighten nor amuse him.

The Wisconsin Democrat said today the report, with detailed measurements on 423 stewardess trainees for American Airlines, was another case of taxpayers' money spent on discovering the obvious. "It seems like a bust to me," he said...

Seventy-nine individual body measurements were taken as part of the study, and some, the senator said, seemed unnecessary or irrelevant.

"Detailed measurements were made of body features such as the skinfold of the upper arm and the posterior calf, the vertical height of the sphyrion, the popliteal length of the buttocks, the transverse distance between the centres of the anterior superior iliac spines, the knee-to-knee breadth while sitting, the maximum horizontal width of the jaw across the gonial angles, and the height of the nose," he said.

There were too many deviations among even general measurements of young trainees to help designers of airline equipment, he argued.

Their weights ranged from 94 to 145 pounds, heights from five feet one inch to six feet one inch, busts from 29 to 37.5 inches and waists from 21 to 28 inches.

The senator concluded: "About all that can be said to aircraft designers is that stewardesses are young women with the body measurements of young women."

Posted By: Alex - Mon May 30, 2022 - Comments (5)
Category: Body, Science, Air Travel and Airlines, 1970s

The Pressed Frog Phenomenon

I found the image below at the Texas History site of the University of North Texas. It appears there as is, without any further explanation (or date).



I realize that the indentations on top of bricks are called 'frogs', but why were actual frogs being placed inside bricks?

As far as I can tell, it must have been an experimental demonstration of the 'pressed frog phenomenon' — this phenomenon being that one can place a living frog inside a brick as its being made, apply thousands of pounds of pressure to the brick to mold it, and the frog will survive. The frog won't be happy about the experience, but it won't burst. Whereas the same pressure applied to a frog that isn't in a brick will definitely cause it to burst.

Obviously the brick hasn't been heated in a kiln, because that would definitely cook the frog.

The article below from 1925 explains the science of why a frog in a brick doesn't burst. The key part of the (overly long) explanation is this sentence:

when the pressure was exerted gradually there was a tendency for the particles of clay around the body to "wall up" the body by the grains of clay moving instead of a tendency of the body "bursting" by the particles of the body moving.

However, this doesn't solve the mystery of who first decided to put a frog in a brick.



Clarion Ledger Sun - Aug 16, 1925

Posted By: Alex - Mon May 23, 2022 - Comments (5)
Category: Animals, Science, Experiments, 1920s

Knives made from frozen human feces

The non-fiction book Shadows in the Sun by Wade Davis contains the following passage:

There is a well known account of an old Inuit man who refused to move into a settlement. Over the objections of his family, he made plans to stay on the ice. To stop him, they took away all of his tools. So in the midst of a winter gale, he stepped out of their igloo, defecated, and honed the feces into a frozen blade, which he sharpened with a spray of saliva. With the knife he killed a dog. Using its rib cage as a sled and its hide to harness another dog, he disappeared into the darkness.

This caught the attention of some archaeologists who decided to test if a knife made from human feces would actually be strong enough to cut through muscle and tendons. They published their results in the Journal of Archaeological Science.

The researchers paid close attention to detail. For instance:

In order to procure the necessary raw materials for knife production, one of us went on a diet with high protein and fatty acids, which is consistent with an arctic diet, for eight days.

However, the results were disappointing: "the knife-edge simply melted upon contact, leaving streaks of fecal matter."

Conclusion: the story of the fecal knife was an urban legend.

Posted By: Alex - Fri Mar 25, 2022 - Comments (4)
Category: Science, Experiments, Excrement

Mystery Gadget 100

What's happening with these poor doggos?

The answer is here.

Or after the jump.



More in extended >>

Posted By: Paul - Fri Feb 11, 2022 - Comments (0)
Category: Science, Dogs, 1930s

The Mentality of the Criminal Woman

Read it here.



The majority of the book consists of dry statistical tables and charts of the tests given to the subjects.



But in the latter third of the study, conclusions begin to be drawn.

Posted By: Paul - Thu Jan 13, 2022 - Comments (1)
Category: Science, Studies, Reports, White Papers, Investigations, 1910s, Women

Formaldehyde Hunger

According to medical student lore, the smell of formaldehyde while dissecting bodies stimulates the appetite. This phenomenon is known as 'formaldehyde hunger'.

It was mentioned in a 2020 article by Amalia Namath in the Georgetown Medical Review, and that's the earliest reference to it I've been able to find:

A few years had passed since I had last been in the anatomy lab, but the smell immediately brought me back. With the smell came a flood of memories—meeting my 4 lab mates and bonding as we spent hours hunched over our cadaver. Often, we would share our favorite recipes as the lab would wind down, in part because of the aptly named "formaldehyde hunger" and to find common ground.

An article on mashed.com disputes the reality of the phenomenon, noting, "there is some self-reported evidence of formaldehyde actually having the opposite effect — constricting hunger, rather than inducing it."

My guess is that med students just naturally build up an appetite during the long hours they're dissecting a cadaver. After all, they're presumably not snacking while they're doing this. The formaldehyde has nothing to do with their hunger. But it makes a better story to attribute their food cravings to the formaldehyde.

Posted By: Alex - Sun Jan 09, 2022 - Comments (1)
Category: Food, Science, Fables, Myths, Urban Legends, Rumors, Water-Cooler Lore

Urohidrosis

Back in the 1960s, while observing wood storks in Florida, biologist M. Philip Kahl, Jr. noted that on hot days the storks "have the unusual habit of frequently excreting on their legs."

He eventually concluded that, since storks don't sweat, they were doing this to cool themselves down "by means of evaporative cooling of the blood supply to the legs and feet." He named this phenomenon 'urohidrosis'.

His hypothesis is now accepted as true, and it's not only storks that cool themselves by pooping on their legs. Turkey vultures do it too.

Reference: Kahl, P.M., Jr. 1963. Thermoregulation in the Wood Stork, with special reference to the role of the legs. Physiol. Zool., 36: 141-151.

Posted By: Alex - Tue Dec 14, 2021 - Comments (0)
Category: Animals, Science, Excrement

Hand-Sniffing After Handshakes

Research by biologists Noam Sobel and Idan Frumin reveals that after a handshake people frequently lift their hand to their nose and sniff it. The researchers hypothesize that this is to smell the body odor of the other person.

As described by Sarah Everts in her recent book The Joy of Sweat:

Sobel also conducted a fascinating experiment with his graduate student Idan Frumin to see what people did with their hands after a handshake. Their team secretly videotaped people after they shook the hand of someone new, someone they had just met for the first time. Here's their delicious discovery: A few seconds after the handshake, the experimental subjects would inevitably sniff their own hands, to gain some odorous information about the new person.

"When we showed them the videos, many of the subjects were completely shocked and disbelieving," Frumin told me. "Some thought we had doctored the videos - not that we had the computing power or the expertise to do so."

. . . When Frumin now goes to conferences, he sometimes stands back and watches people unconsciously sniffing. "Sometimes I catch myself doing it too. People tell me I've ruined handshakes for them, that they've become very self-conscious about shaking hands, especially with me."




The Weizmann Institute has more info. Sobel and Frumin's article about their research is in the journal eLife Sciences.

Posted By: Alex - Wed Dec 08, 2021 - Comments (6)
Category: Science, Experiments, Smells and Odors

American Tentative Society

The officers of the American Tentative Society insisted that, despite the odd name, the society wasn't a joke. Its purpose, they explained, was to promote the idea that scientific knowledge should always be regarded as tentative — subject to growth, revision, and change.

The three founders of the society were science journalists Alton Blakeslee, Rennie Taylor, and Pat McGrady. They came up with the concept in the mid-1960s, but it remained nothing more than a crazy idea until 1974, when Taylor died. In his will he bequeathed $300,000 to making the society a reality. This left the other two stuck with the problem of how to spend the money. So they solicited ideas from the public.

As far as I can tell, they ended up using some of the money to give awards to scientists (such as Stephen Jay Gould) whom they viewed as embracing the tentative nature of scientific knowledge. The rest of it was eventually given to the Council for the Advancement of Science Writing to endow a fellowship awarded annually to students accepted for enrollment in graduate-level programs in science writing.

Science - May 24, 1974

Posted By: Alex - Tue Oct 19, 2021 - Comments (1)
Category: Clubs, Fraternities and Other Self-selecting Organizations, Science, 1970s

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Alex Boese
Alex is the creator and curator of the Museum of Hoaxes. He's also the author of various weird, non-fiction, science-themed books such as Elephants on Acid and Psychedelic Apes.

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