Tag Archives: Science

Herbaria side by side

Herbaria are collections of different plant specimens which have been dried and preserved. They can be used for many different reasons including personal collecting and as data necessary for scientific studies. FSU even has a museum-quality collection of plants and micro-algae specimens held at the Robert K. Godfrey Herbarium.

Special Collections also has a good sized collections of herbals, including a 1791 portable herbarium of plants in the vicinity of Liege. This item is without a cover and has varying degrees of water and age damage throughout the pages. The specimens which were originally in the item were removed in order to better preserve the book, however the impressions and stains they left on the pages are still easily visible. The original specimens from this item can be viewed from a CD which is included with the book within Special Collection.

Residual evidence of the Polypodium Vulgare that was once held on this page.

I particularly like how indents and water marks from leaves can be seen within the gutter of some of the pages. It gives the item character, and speaks of an unnamed person who sometimes may have slipped leaves in the pages of the book for safe keeping or as bookmarks. This book is designed to have been bought with the text only, and each page which would hold a plant would be inserted as that herb was found. It’s a design not often seen in books but nifty for the use of this particular book.

Cover of the Ruby Diamond herbaria.

In comparison, Ruby Diamond’s collection of pressed flowers from her trip to Jerusalem is in phenomenal condition. This particular item should sit on the table as seen in the image (left) with the spine facing to the right as is customary when reading Hebrew text. This particular herbaria has a cover made of wood from Jerusalem and is something Diamond probably bought while in Israel to fill with the plants. This method of collection, buying a pre-made book and filling it with one’s own items, is a common theme when it comes to herbaria. When opened, the beautifully arranged herbs show the care that was put into this travel sized item.

Each page of herbs is covered with a thin absorbent paper that will keep the pages, for the most part, from suffering water and mold damage. It shows to be very effective when compared to the 1791 portable herbaria. The spine of this item is very stiff and it should not be opened all the way as one would assume. Instead, it is best to open an item like this only slightly to avoid any long term damage. Likewise, the specimens on the pages of this herbaria should only be exposed for a short amount of time to protect them from chemicals or pollutants that may damage them if exposed for too long.

The 1791 portable herbarium of plants in the vicinity of Liege and Ruby Diamond’s own collection of pressed flowers from the Holy Land can can be viewed in Special Collections at Strozier Library.

A personal favorite, flowers and herbs collected from the tomb of the biblical Rachel, wife of Jacob. Care has been put in to organically recreate an image of the tomb.

All photo credits go toward the author.

Updating the P.A.M Dirac Collection

At the beginning of the Fall 2018 semester, I began working with the Paul A. M. Dirac Collection found in the Special Collections & Archives at Florida State University. I didn’t really know what I would come across when I got started, but the photographs in this collection would end up being the very beginning of my utter fascination for the theoretical physicist.

I enjoy going to museums and reading books over studying science and math and day of the week. Maybe that’s why when I started this journey through the life of Paul Dirac I was both curious and uncertain. On an average day, I would take one box out of the stacks and start on the latest file of images. A single box could have anywhere from six to forty folders and could contain over 100 photographs. As cheesy as it sounds, each photo really does tell a story. I worked with images from the early 1900s which depicted Dirac and his family in period-appropriate dress. I saw images taken in Russia and Israel and Japan. Truly, despite the man being known for his contributions to theoretical physics, I was coming to know him for much more than that. Dirac wasn’t just a phenomenal scientist–he was a fascinating character all in his own category who traveled the world in the name of scientific discovery.


The first color images I stumbled upon in the collection. (see carnations and group photo)

The majority of the work was done through a spreadsheet where I compiled metadata for each image. Doing this not only updates the information by double checking that dates and events are accurate with a fresh pair of eyes, but it also allows for proper digitization. Organizing hundreds of photos, dealing with copyright, and learning the language of metadata has helped me in understanding how vital this work is. Although looking at these pictures and reflecting on the history behind them was one of my favorite parts of this project, understanding the importance of background work was the true takeaway. I had never truly appreciated the time and effort many individuals put in to make something on the web easily accessible for others and being able to reap the rewards of such work has helped me to understand the many layers it takes to make such content.

Snapshot image of the metadata used to digitize the collections.

After finishing my work on the Dirac Collection photographs, I moved on to his manuscripts and notes. I am still going through this work as it’s a hefty bit of information which I alone cannot decipher. Another team member is working on translating the mathematical notes which I will then compile into another document which will allow the information to be neatly transferred online for the public to view.

Before starting this project, I expected to be apathetic toward the process of having to look up and research people, places, and events in order to most accurately describe an image or document. Instead, I found that, despite what many times looked to be dull and uninspiring images, each photo had a story of its own which bled into the next and created a snapshot collection of the story of one man’s life.

Dirac’s papers now reside in Special Collections & Archives at Florida State University. You may see a complete finding aid of the collection here.

All photo credits goes to the author.

Dirac at FSU

It wasn’t until his later years that Paul Dirac moved to work for the University we call home. In September of 1970, after retiring from his position at Cambridge, Paul Dirac moved to Tallahassee, Florida where he was appointed to work as a visiting professor for Florida State University. He was 68 at the time and could have fully retired, but the continuation of his work may be an example of the overwhelming desire Dirac had for the field of science and quantum mechanics.


Tallahassee. Holiday Inn marquee welcoming Paul Dirac on his first visit to the city. (original image)

Prior to his appointment, in June of that same year, Dirac visited the city to test his endurance against the subtropical climate. In the end, he decided to move as Manci, his wife, preferred the weather to that of Cambridge. In 1972, Dirac took on becoming a full professor, a position which allowed him to continue active research and to pass on the knowledge he’d accumulated through the years. During his time at FSU, Dirac supervised a few graduate students, his last being Bruce Hellman who went on to become a physicist for the CIA.


Paul Dirac in his office with last graduate student, Bruce Hellman. (original image)

Tallahassee. Paul Dirac, Leopold Halpern, and two unidentified women together for an outdoor excursion. (original image)

When barking dogs weren’t ruining his walks, Dirac could be found in his spare time visiting the local lakes and sinkholes in an effort to combat the humidity and intense heat of Tallahassee. With a thermometer in hand, Dirac would systematically check the waters and, if they were above exactly 60 degrees Fahrenheit, he would go for a swim.

Dirac had no teaching responsibilities beyond his supervision of graduate students until 1973 when he agreed to give a series of lectures on the general theory of relativity. These lectures were given until 1980 and were used as the basis for his book General Theory of Relativity. He would go on to teach until his death on October 20, 1984, at the age of 82.

The work that Dirac put forth on the subject of quantum mechanics and quantum theory is still an inspiration to physicists today. Dirac’s spirit and the spirit of mathematical beauty, of which Dirac was quite enamored, still persists through science as we know it as theories, he put forward such as that of the single magnetic pole, the magnetic monopole, have not been proven but are enthusiastically looked upon as possibilities for the future of scientific discovery. Dirac’s papers can and should still be read and studied. As it was so eloquently put in The Strangest Man by Graham Farmelo, the more you read Dirac the more you understand quantum mechanics and the brilliant mind of one of the leading pioneers of the fascinating subject.

Sources:

Farmelo, Graham, The Strangest Man: The Hidden Life of Paul Dirac, Quantum Genius, Faber and Faber 2009.

1925-1933: The Years That Count


Paul Dirac lecturing at blackboard, Iowa City, Iowa. (original image)

There is no question as to whether Paul Dirac was a great scientist. From his keen eye for mathematical beauties to his contributions as a pioneer in quantum mechanics, one can only argue that Dirac was anything but ordinary.

Dirac’s peak was between the years of 1925 and 1933. Despite being only one of many theoreticians who aided in the discovery of quantum mechanics, Dirac’s contribution was entirely special. He created a clear vision for quantum mechanics as it became a new branch of science and as Freeman Dyson puts it, “His great discoveries were like exquisitely carved marble statues falling out of the sky, one after another” (Farmelo 428).


Paul Dirac with W. Heisenberg (with newspaper) in street. (original image)

During this time, Dirac held an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851 which allowed him to fund his research for the next three years. He also made close connections with theoretical physicist and quantum mechanics pioneer Werner Heisenberg starting in 1925, which would start a fifty-year friendship. At the young age of 24, Dirac completed his Ph.D. and produced the first thesis on quantum mechanics ever to be produced.

Unlike other quantum theoreticians, whose papers were hard on the eyes and imperfectly formed, Dirac’s book The Principles of Quantum Mechanics gave this new field a fine, polished look. He presented quantum mechanics as if it were a work of art—and to him it most surely was. In 1933, Dirac was awarded the Nobel Prize in Physics alongside Erwin Schrödinger for “the discovery of new productive forms of atomic theory” which arose from his years of research.

Despite being somewhat of an unknown face in a scientific community where intellectual giants such as Einstein and Darwin are most remembered, Dirac can be “counted as one of the greatest of all scientist” because the notions which were put forth by him are still being developed and continue to contribute to modern thinking (429). Today, scientists can smash together particles at high energies. They have created a huge particle accelerator at CERN which can recreate the conditions of the universe to within a millionth of a millionth of a second of the beginning of time. Dirac acted as a stepping stone for the scientific community by taking the position of a co-discoverer and by authoring the action-principle formulation of quantum mechanics.

Sources:

Farmelo, Graham, The Strangest Man: The Hidden Life of Paul Dirac, Quantum Genius, Faber and Faber 2009.

Paul Dirac: Early Adulthood and the Start of a Scientific Career


Paul Dirac formal portrait, wearing academic cap and gown. (original image)

Paul Dirac’s record was almost flawless as an undergraduate. In three years, Dirac nearly managed to be at the top of his class in all subjects, the only flaw being a single Strength of Materials course where he ranked second. After receiving his engineering degree at the young age of nineteen, Dirac went on to Cambridge where he pursued a degree in mathematics.

While Dirac was studying and moving forward in his academics, his older brother Felix had settled in Birmingham working in a machine-testing factory. Charles Dirac had supported Paul in his education, going so far as to give him the money necessary to be sure of solvency in Cambridge. However, Charles Dirac had refused Felix his desire to study medicine as he wished. Felix earned little money as a factory worker and was unhappy with how his life was turning out.


Bristol. Florence Dirac at the grave of son Felix. (original image)

In early January of 1925, Felix left his job, stopped writing to his parents and sister, and began living from his savings. A few months later, in March, Paul Dirac received a letter at Cambridge from his aunt Nell. Felix had committed suicide. Dirac’s feelings about this occurrence are unknown, however, after returning home to his family for a short time, it appears that Dirac went back to work as usual.

It is speculated that the plummet of Dirac’s productivity in the following months was due to grief. Dirac’s focus was also making a shift during these years of study as he was transitioning from working on solvable problems to looking for new, fundamental research problems. In October of 1925, Dirac entered his last year of postgraduate studies. During this year was when Dirac first set out the mathematical basis of quantum theory parallel to the classical theory. Dirac came up with a theory which sought to describe the behavior of all quantum particles in all circumstances throughout all of time.

Only a month later, Dirac had finished writing his paper titled, “Fundamental Equations of Quantum Mechanics”. On December 1st, the same day a historical non-aggression pact between France, Germany, and Belgium called the Treaty of Locarno was signed, Dirac’s paper was published by the Royal Society. This marked the start of when Dirac became recognized in the scientific community. Though part of his results had already been discovered by German physicist and mathematician Max Born, Dirac had become a part of a collection of mathematicians and scientists which sought to crystallize quantum mechanics into a complete theory. A year later, in June of 1926, Dirac would pursue a Ph.D. where he would become the first to write a thesis on matters of quantum mechanics.   

Sources:

Farmelo, Graham, The Strangest Man: The Hidden Life of Paul Dirac, Quantum Genius, Faber and Faber 2009.

The Early Years of Paul Dirac

Formal portrait of Paul and Felix Dirac as children.

Paul (in child’s gown) and Felix Dirac. (original image)

Paul Adrien Maurice Dirac was born August 8, 1902, just a day before the crowning of King Edward the VII. Just as you’d expect, Dirac and his older brother Felix resembled each other greatly in their early years, both quiet and sporting thick black curls. Through letters from Florence Dirac, Paul’s mother, one would find that these two were exceptionally close and loved being with their father.

Graham Farmelo, writer of The Strangest Man: The Hidden Life of Paul Dirac argues that Paul Dirac most probably didn’t appreciate being brought up in an environment of unusual circumstances where he and his brother were to receive private education from their school teacher father. In a 1980 conversation with Kurt Hofer, a then Florida State University biology professor, Dirac is quoted to have confided that in his early years, he never felt love or affection.

An formal portrait of the Dirac family with Florence on the left and Charles on the right. Infant Betty, Felix, and Paul are situated between them.

Paul Dirac, Charles, Florence, Felix, and Betty in family portrait. (original image)

Throughout his life, most of Dirac’s acquaintances had no idea what his childhood was like. At home, Dirac had no photographs of his father and he kept his father’s papers locked in his desk. In his early thirties, Dirac wrote to a close friend that to defend himself against the hostilities he perceived around him he retreated into his own imagination. Perhaps this is what aided in his superior understanding of scientific inquiry.

Formal portrait of Paul Dirac sitting outside.
Paul Dirac outdoor portrait. (original image)

Around the age of ten, Dirac picked up the hobby of astronomy. Science wasn’t a subject taught at Bishop Road Primary School, however, they did have courses on technical drawing which may have provided Dirac with a foundation in the unique way he interpreted how the universe worked. Years later, the geometrical approaches found in the technical drawing lessons Dirac took in his earliest years would transfer over into the mathematical theories he would pose in relation to theoretical physics and the 20th century understanding of the atom.

Sources:

Farmelo, Graham, The Strangest Man: The Hidden Life of Paul Dirac, Quantum Genius, Faber and Faber 2009.

Celebrating Paul Dirac

Paul Dirac Teaching
Paul Dirac lecturing at blackboard, Iowa City, Iowa.

Paul Dirac was an English theoretical physicist who provided remarkable insight towards the development of quantum mechanics and quantum electrodynamics. His discoveries led to him now being famously known as the father of modern physics and a Nobel Prize Winner. These discoveries constitute his own formula, known as the Dirac Equation, to describe the behavior of fermions, which are subatomic particles, and predicted the existence of antimatter, which are corresponding particles of ordinary matter.

paul dirac in front of house (madison)
Paul Dirac standing in front of house

His contribution to the study of physics and society is commemorated on this day, the day of his death, in 1984 at the age of 82. On October 19th, the day before the anniversary of his death, several librarians and students from the physics department go out and clean his headstone at Roselawn Cemetery and plant flowers to honor the man who spent his last decade at Florida State University teaching physics students and conducting further research.

paul dirac in office at FSU
Paul Dirac in his office at Florida State University

 

 

 

 

 

 

The FSU Special Collections & Archives houses The Paul A.M. Dirac Papers that consists of correspondence, books, manuscripts of scientific papers, calculations, photographs, framed certificates, and realia. A window is even dedicated to Paul Dirac within the Heritage Museum located in Dodd Hall, to remember his work and honor his footprint within physics.

dirac-award.png
Maharishi Award conferred upon Dr. Paul A. Dirac

Deep-C Joins the Digital Library

One of our brilliant student workers just finished describing a born-digital collection for the University Archives. We’ll let her tell you more!

My name is Meg Barrett, and I’m a junior studying Art History and French. I started working as a Special Collections & Archives assistant last summer. So far, I’ve had the opportunity to work on some really interesting projects. Most recently, I finished creating the metadata for the Deep-C Consortium papers.

The Deep-C (Deep Sea to Coast Connectivity in the Eastern Gulf of Mexico) Consortium was a four-year, interdisciplinary study of deep sea to coast connectivity in the northeastern Gulf of Mexico. The study, which began in 2011, investigated the environmental consequences of petroleum hydrocarbon release in the deep Gulf on living marine resources and ecosystem health. Deep-C examined the geomorphologic, hydrologic, and biogeochemical settings that influence the distribution and fate of the oil and dispersants released during the Deepwater Horizon (DwH) accident, and used the resulting data for model studies that support improved responses to possible future incidents. You can still visit the study’s website for more information as well.

As somebody who enjoys studying arts and languages, the idea of going through the Deep-C files, which are focused on scientific research, felt very out of my comfort zone. However, as I began sorting through the posters, images, and graphs from the study, I found the information presented so interesting. I really enjoyed the project, and I’m happy to have had the chance to work on it!

 

DeepC_Poster
One of the posters in the Deep-C Consortium collection. See the original object here.