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6 Other Major Discoveries by the U.S. Geological Survey

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Yesterday, the U.S. Geological Survey registered a 4.9 tremor in North Korea that originated roughly one kilometer underground, suggesting the test of a nuclear bomb. Detecting nuclear tests is one of a wide range of missions for the USGS. The Survey was founded in 1879 in part to take full measure of the Louisiana Purchase and lands conquered during the Mexican-American war. Today it charts and measures not only the lands and resources of the United States, but also the Moon and Mars and beyond. Here are a few things discovered by the U.S. Geological Survey.

1. The Moon’s Face

In 1892, Grove Karl Gilbert, Chief Geologist of the U.S. Geological Survey, tested samples at what is now Barringer Crater in Arizona, and reported that the crater was the result of volcanic activity. (His report is famous for its meticulous scientific methodology—Gilbert himself believed the crater had celestial origins, but deferred to the science.) The findings were wrong, but they got him thinking about the craters on the Moon. He believed that they were caused by impacts by meteoroids. From the naval observatory in Washington, he studied the surface of the Moon for eighteen nights over the course of three months. (Senator Edward Wolcott of Colorado didn’t care for such tomfoolery, complaining during a Congressional session, “So useless has the Survey become that one of its most distinguished members has no better way to employ his time than to sit up all night gaping at the Moon.”) In a paper titled The Moon’s Face, Gilbert presented the first scientific arguments for impact origins of craters on Moon. (Previously, volcanoes were widely believed to be responsible for the Moon’s features, and guesses that impacts might be responsible for the craters had no scientific backing.) His research was fifty years ahead of its time, and a milestone in lunar geoscience.

2. One trillion dollars in Afghanistan

Afghanistan has seen decades of war, tyrannical rulers, Mad Max frontiers, and a grim future. There is hope, though. In 2006, a U.S. Geological Survey study found evidence of $1,000,000,000,000 in lithium, gold, niobium, and other valuable metals. (The Pentagon would call Afghanistan the “Saudi Arabia of Lithium.”) The discovery was made after a USGS team arrived to help with the reconstruction effort. They came across old charts from the Afghan Geological Service created by Soviet miners during the occupation. The USGS proceeded to conduct aerial surveys with equipment designed to measure gravity and magnetic fluctuations. They surveyed seventy-percent of the country and were astonished with their findings. In 2007, they returned, this time with scanning devices capable of rendering three-dimensional portraits of the country’s mineral deposits. It is the most comprehensive geologic study of Afghanistan ever recorded, and is a measure of hope in an often-hopeless land.

3. An explanation for life on inhospitable worlds

Most life on Earth requires oxygen to breathe and carbon to eat. The best guess, then, has been that life on other planets would require the same setup. In 2002, Nature published the findings of Frank Chapelle of the U.S. Geological Survey. He discovered a community of microscopic organisms called Archaea located beneath a hot spring in Idaho. Unlike your average dog or monkey, Archaea survive on hydrogen and carbon dioxide. The microbes had long been found in sparse numbers, but Chapelle’s massive, exclusive community of Archaea in such inhospitable conditions give scientists reason to believe that such organisms might exist on Mars or Europa.

4. Rising sea levels on the east coast

When we think of melting ice caps, we tend to think of water everywhere rising at once and at the same rate. That's not exactly what happens. Because of currents, regional oceanographic temperatures, and land movements, water rises in some places faster than others. According to the U.S. Geological Survey, each year since 1990, the global sea level has risen 0.6 to 1.0 millimeter globally. On the east coast of the United States, however, the rise has been 2.0 to 3.7 millimeters annually. The upshot is that if something doesn’t change, by 2100, the sea level on the coast will rise 8 to 11.4 inches above the already significant global increase of two to three feet. This will make flooding, already a serious concern for New York and Boston, significantly worse.

5. A landing spot for Curiosity

Taking up where Grove Carl Gilbert left off, the U.S. Geological Survey’s Astrogeology Research Program maps celestial objects and studies their features. The program also develops sensors and scanning techniques to beam images back to Earth for processing. The USGS mapped and selected the landing site on Mars for the Curiosity rover, and USGS scientists analyze collected data and help plan each day’s mission.

6. Earthquakes, everywhere, all the time

According to the U.S. Geological Survey, in the past week there were 375 detected earthquakes. It is estimated that each year there are several million earthquakes, though not all are felt, and many occur in remote areas. Although it seems like the number of earthquakes is on the rise, the USGS reports that the number of earthquakes magnitude 7.0 and up remains constant. The number just seems worse because geologists have become much more skilled at detecting them.

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Courtesy New York Academy of Medicine Library
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History
10 Treasures From the New York Academy of Medicine Library
A urine wheel from Fasciculus Medicinae
A urine wheel from Fasciculus Medicinae
Courtesy New York Academy of Medicine Library

Tucked away on a side street near Central Park, the New York Academy of Medicine Library is one of the most significant historical medical libraries in the world. Open to the public by appointment since the 19th century, its collection includes 550,000 volumes on subjects ranging from ancient brain surgery to women's medical colleges to George Washington's dentures. A few weeks ago, Mental Floss visited to check out some of their most fascinating items connected to the study of anatomy. Whether it was urine wheels or early anatomy pop-up books, we weren't disappointed.

1. FASCICULUS MEDICINAE (1509)

The Fasciculus Medicinae is a compilation of Greek and Arabic texts first printed in Venice in 1491. While it covers a variety of topics including anatomy and gynecology, the book begins with the discipline considered most important for diagnosing all medical issues at the time: uroscopy (the study of urine). The NYAM Library's curator, Anne Garner, showed us the book's urine wheel, which once had the various flasks of urine colored in to help aid physicians in their diagnosis. Each position of the wheel corresponded to one of the four humors, whether it was phlegmatic, choleric, sanguine, or melancholic. The image on the left, Garner explains, "shows the exciting moment where a servant boy brings his flasks to be analyzed by a professor." Other notable images in the book include one historians like to call "Zodiac Man," showing how the parts of the body were governed by the planets, and "Wound Man," who has been struck by every conceivable weapon, and is accompanied by a text showing how to treat each type of injury. Last but not least, the book includes what's believed to be the first printed image of a dissection.

2. ANDREAS VESALIUS, DE HUMANI CORPORIS FABRICA (1543)

Andreas Vesalius's Fabrica
Frontispiece of Andreas Vesalius's Fabrica
Courtesy New York Academy of Medicine Library

Andreas Vesalius, born 1514, was one of the most important anatomists who ever lived. Thanks to him, we moved past an understanding of the human body based primarily on the dissection of animals and toward training that involved the direct dissection of human corpses. The Fabrica was written by Vesalius and published when he was a 28-year-old professor at the University of Padua. Its detailed woodcuts, the most accurate anatomical illustrations up to that point, influenced the depiction of anatomy for centuries to come. "After this book, anatomy divided up into pre-Vesalian and post-Vesalian," Garner says. You can see Vesalius himself in the book's frontispiece (he's the one pointing to the corpse and looking at the viewer). "Vesalius is trying to make a point that he himself is doing the dissection, he believes that to understand the body you have to open it up and look at it," Garner explains.

3. THOMAS GEMINUS, COMPENDIOSA (1559)

Flap anatomy from Thomas Geminus's Compendiosa
Courtesy New York Academy of Medicine Library

There was no copyright in the 16th century, and Vesalius's works were re-used by a variety of people for centuries. The first was in Flemish printer and engraver Thomas Geminus’s Compendiosa, which borrowed from several of Vesalius's works. The first edition was published in London just two years after the Fabrica. Alongside a beautiful dedication page made for Elizabeth I and inlaid with real gemstones, the book also includes an example of a "flap anatomy" or a fugitive leaf, which was printed separately with parts that could be cut out and attached to show the various layers of the human body, all the way down to the intestines. As usual for the time, the female is depicted as pregnant, and she holds a mirror that says "know thyself" in Latin.

4. WILLIAM COWPER, THE ANATOMY OF HUMANE BODIES (1698)

Illustration from William Cowper's The Anatomy of Humane Bodies
Courtesy New York Academy of Medicine Library

After Vesalius, there was little new in anatomy texts until the Dutch anatomist Govard Bidloo published his Anatomia humani corporis in 1685. The work was expensive and not much of a financial success, so Bidloo sold excess plates to the English anatomist William Cowper, who published the plates with an English text without crediting Bidloo (a number of angry exchanges between the two men followed). The copperplate engravings were drawn by Gérard de Lairesse, who Garner notes was "incredibly talented." But while the engravings are beautiful, they're not always anatomically correct, perhaps because the relationship between de Lairesse and Bidloo was fraught (Bidloo was generally a bit difficult). The skeleton shown above is depicted holding an hourglass, by then a classic of death iconography.

5. 17TH-CENTURY IVORY MANIKINS

17th Century Ivory Manikin
Courtesy New York Academy of Medicine Library

These exquisite figures are a bit of a mystery: It was originally thought that they were used in doctors’ offices to educate pregnant women about what was happening to their bodies, but because of their lack of detail, scholars now think they were more likely expensive collector's items displayed in cabinets of curiosity by wealthy male physicians. The arms of the manikins (the term for anatomical figures like this) lift up, allowing the viewer to take apart their removable hearts, intestines, and stomachs; the female figure also has a little baby inside her uterus. There are only about 100 of these left in the world, mostly made in Germany, and NYAM has seven.

6. BERNHARD SIEGFRIED ALBINUS, TABULAE SCELETI (1747)

Illustration from Bernhard Siegfried Albinus's Tabulae Sceleti
Courtesy New York Academy of Medicine Library

One of the best-known anatomists of the 18th century, the Dutch anatomist Bernhard Siegfried Albinus went to medical school at age 12 and had a tenured position at the University of Leiden by the time he was 24. The Tabulae Sceleti was his signature work. The artist who worked on the text, Jan Wandelaar, had studied with Gérard de Lairesse, the artist who worked with Bidloo. Wandelaar and Albinus developed what Garner says was a bizarre method of suspending cadavers from the ceiling in the winter and comparing them to a (very cold and naked) living person lying on the floor in the same pose. Albinus also continued the dreamy, baroque funerary landscape of his predecessors, and his anatomy is "very, very accurate," according to Garner.

The atlas also features an appearance by Clara, a celebrity rhinoceros, who was posed with one of the skeletons. "When Albinus is asked why [he included a rhinoceros], he says, 'Oh, Clara is just another natural wonder of the world, she's this amazing creation,' but really we think Clara is there to sell more atlases because she was so popular," Garner says.

7. FERDINAND HEBRA, ATLAS DER HAUTKRANKHEITEN (1856–1876)

Circus performer Georg Constantin as depicted in Ferdinand Hebra's dermatological atlas
Courtesy New York Academy of Medicine Library

By the mid-19th century, dermatology had started to emerge as its own discipline, and the Vienna-based Ferdinand Hebra was a leading light in the field. He began publishing this dermatological atlas in 1856 (it appeared in 10 installments), featuring chromolithographs that showed different stages of skin diseases and other dermatological irregularities.

"While some of the images are very disturbing, they also tend to adhere to Victorian portrait conventions, with very ornate hair, and [subjects] looking off in the distance," Garner says. But one of the most famous images from the book has nothing to do with disease—it's a depiction of Georg Constantin, a well-known Albanian circus performer in his day, who was covered in 388 tattoos of animals, flowers, and other symbols. He travelled throughout Europe and North America, and was known as "Prince Constantine" during a spell with Barnum's Circus. (The image is also available from NYAM as a coloring sheet.)

8. KOICHI SHIBATA, OBSTETRICAL POCKET PHANTOM (1895)

19th century Obstetrical Pocket Phantom
Courtesy New York Academy of Medicine Library

Obstetrical phantoms, often made of cloth, wood, or leather, were used to teach medical students about childbirth. This "pocket phantom" was originally published in Germany, and Garner explains that because it was made out of paper, it was much cheaper for medical students. The accompanying text, translated in Philadelphia, tells how to arrange the phantom and describes the potential difficulties of various positions.

9. ROBERT L. DICKINSON AND ABRAM BELSKIE, BIRTH ATLAS (1940)

Image from Robert Dickinson's Birth Atlas
Courtesy New York Academy of Medicine Library

Robert Dickinson was a Brooklyn gynecologist, early birth control advocate, and active member of NYAM. His Birth Atlas is illustrated with incredibly lifelike terracotta models created by New Jersey sculptor Abram Belskie. The models were exhibited at the 1939 New York World's Fair, where they became incredibly popular, drawing around 700,000 people according to Garner. His depictions "are very beautiful and serene, and a totally different way of showing fetal development than anything that had come before," Garner notes.

10. RALPH H. SEGAL, THE BODYSCOPE (1948)

The Bodyscope
Courtesy New York Academy of Medicine Library

This midcentury cardboard anatomy guide contains male and female figures as well as rotating wheels, called volvelles, that can be turned to display details on different parts of the body as well as accompanying explanatory text. The Bodyscope is also decorated with images of notable medical men—and "wise" sayings about God's influence on the body.

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holidays
23 Funny Historical Letters to Santa
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At the end of the 19th century, illustrator Thomas Nast popularized our current version of Santa Claus: a fat, jolly man with a white beard and a red suit who lives at the North Pole. Nast’s cartoons in publications like Harper’s Weekly also helped spread the idea of sending St. Nick mail. By the late 1870s, American children had begun mailing their Christmas wish lists to Santa, but the Post Office considered these letters undeliverable. Around this time, newspapers began prompting children to send wish lists to them, which would then be published so that Santa (and parents) could read the letters all in one place. We’ve collected 23 funny historical letters from children to Santa Claus, as printed in newspapers across the U.S.

1. CONRAD FROM NEBRASKA (1896)

The Courier, Dec. 19, 1896

Conrad tries to mask his violent tendencies by interspersing the weapons between non-threatening gifts, but he shows his hand with that threat at the end.

2. CLIFFORD FROM NEBRASKA (1896)

The Courier, Dec. 19, 1896

Clifford sounds ... intense.

3. MARIE FROM NEBRASKA (1896)

The Courier, Dec. 19, 1896

“As I can not have it I will not ask for it" ... but I will mention it, just in case.

4. LYNWOOD FROM VIRGINIA (1903)

“I smashed everything you sent me last year." I won’t tell you what I want this year, but you better not mess up.

5. PAUL FROM VIRGINIA (1903)

This 4-year-old is very concerned about his infant brother’s lack of teeth. Since the local doctor has proved useless to rectify the situation, Paul hopes Santa might be able to lend a hand. He is magical, after all.

6. HARRY FROM MONTANA (1903)

Fergus County Argus, Dec. 16, 1903

Who knew keeping your feet dry was such an important part of staying off the Naughty list?

7. RAYMOND FROM WEST VIRGINIA (1907)

Clarence doesn’t sound very nice.

8. PERCY FROM WEST VIRGINIA (1907)

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Poor Opal and Mildred. They’re just girls. Do girls even have preferences?

9. VIRGINIA FROM MISSOURI (1907)

Virginia understands that sometimes Santa needs to delegate.

10. ROBERT FROM TENNESSEE (1913)

The Commercial, Dec. 19, 1913

Old people get lonely.

11. WILLIE FROM FLORIDA (1915)

Sure, an axe sounds like an age-appropriate gift for a five-year-old.

12. ELEANOR FROM FLORIDA (1915)

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“Bring both if possible.”

13. UNSIGNED LETTER FROM FLORIDA (1913)

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This transplant from Maine would really like a basketball, but he doesn’t quite believe that a Santa Claus can exist in Florida, where there isn’t even any snow.

14. WALTER FROM FLORIDA (1915)

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The Daytona Daily News, Dec. 17, 1915

Good choice not to act a pig, Walter.

15. MERLA FROM FLORIDA (1915)

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The Pensacola Journal, Dec. 24, 1915

Merla will not be ignored!

16. ROY FROM FLORIDA (1915)

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The Pensacola Journal, Dec. 24, 1915

A doll dressed in a cowboy suit could not be called Raymond. A lack of sailor suit is a dealbreaker.

17. MAXWELL FROM FLORIDA

The Pensacola Journal, Dec. 24, 1915

Ways to improve your chances of getting a pony from Santa, according to Maxwell Hudson: 1. Admit right off it’s expensive. 2. Say you will use it to take your sisters to school. 3. Promise to be grateful for anything Santa brings, so as not to seem greedy. 4. Make yourself seem extra kindhearted (and thus deserving of a pony) by showing concern for your fatherless neighbors. Did it work? We will never know.

18. MOXIE FROM TENNESSEE (1916)

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Perhaps a kid known for being mean shouldn’t be given a firearm.

19. DICK FROM SOUTH CAROLINA (1916)

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The County Record, Dec. 21, 1916

No, Santa certainly wouldn’t want to get “fastened in” the chimney.

20. JOHN FROM NEW MEXICO (1918)

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World War I devastated Western Europe, decimating a generation of young men—and apparently killing the French Santa Claus.

21. MARY FROM NEW MEXICO (1922)

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The Carlsbad Current, Dec. 15, 1922

Come on, Mary, Santa’s not a mind reader.

22. JEWEL FROM NEW MEXICO (1922)

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The Carlsbad Current, Dec. 15, 1922

No apology for the door-slamming incident. That might have helped your cause, Jewel.

23. R.B. FROM NEW MEXICO (1922)

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The Carlsbad Current, Dec. 15, 1922

R.B. is very thoughtful to provide such specific instructions; otherwise, Santa might get confused.

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