Showing posts with label physics. Show all posts
Showing posts with label physics. Show all posts

Tuesday, October 7, 2025

The Elements of Marie Curie by Dava Sobel

 

In The Elements of Marie Curie, Dava Sobel presents the life of one of the most compelling figures in the history of science. Marie Curie combined relentless curiosity, monumental discovery, and personal sacrifice in a life marked by deep sadness. This book is a brilliant portrait of a scientist whose work fundamentally reshaped our understanding of the physical world whose story still inspires more than a century later.

At first glance, Marie Curie’s life might seem like well-trodden territory. She is one of the most famous scientists of all time — the first woman to win a Nobel Prize, the only person to win two Nobels in two different sciences (physics and chemistry), and a pioneer whose research on radioactivity altered the course of modern physics and medicine. 

Sobel’s approach is not that of a biographer merely listing accomplishments. Instead, she focuses on the elements — literal and metaphorical — that defined Curie’s life and character: her scientific discoveries, her intellectual resilience, her personal losses, and the historical forces that shaped her path.

Sobel’s narrative opens with Curie’s early life as Maria Skłodowska in Russian-occupied Warsaw, a childhood marked by both hardship and defiance. Her determination to pursue education — in an era and a country where women were excluded from universities — set the tone for the rest of her life. Sobel excels at highlighting the decisions that propelled Curie forward: her clandestine schooling in Poland’s “Flying University,” her move to Paris to attend the Sorbonne, and the single-minded focus that carried her through poverty and isolation to academic success.

The heart of the book, of course, is Curie’s collaboration with her husband, Pierre, and their groundbreaking work on radioactivity. Sobel recreates the grim physical conditions of their laboratory — damp, unheated, and barely adequate — as they processed tons of pitchblende in search of new elements. From this laborious, back-breaking work came polonium and radium, discoveries that transformed physics and chemistry and ushered in a new understanding of atomic structure. Sobel’s descriptions of their scientific process are clear and engaging, balancing technical accuracy with narrative flow.

But The Elements of Marie Curie is not just about scientific triumph. Sobel also delves into the intense personal cost of Curie’s work. Pierre’s sudden death in 1906 left Marie a widow with two young daughters and a research program to sustain. Rather than retreat, she stepped into his professorship at the Sorbonne, becoming the university’s first female professor, and carried on their work alone. Sobel portrays this period with particular sensitivity, capturing both Curie’s grief and her resolve. Sobel shows Curie not as a mythic icon, but as a human being, enduring profound loss while pursuing the deepest questions of nature.

The book also explores Curie’s fraught relationship with fame and recognition. Sobel presents the sexism and xenophobia that dogged Curie throughout her career. She recounts the vicious press campaigns that followed her affair with fellow physicist Paul Langevin, the scandals that nearly derailed her career and overshadowed her second Nobel Prize. Yet even in the face of public humiliation, Curie refused to compromise her dedication to science in circumstances that would have crushed most people.

Sobel is particularly vivid on Curie’s war year, later years, and legacy. During World War I, she personally outfitted and drove mobile X-ray units to the front, saving countless lives and advancing medical technology. She also trained a generation of scientists: including her daughter Irène Joliot-Curie, who would go on to win a Nobel Prize herself. Marie and Irene are the only mother and daughter to win the Nobel Prize.  (Six father-son pairs have earned the Nobel Prize, most famously William Henry Bragg (father) and William Lawrence Bragg (son) who won the 1915 Nobel Prize in Physics together.)

What makes The Elements of Marie Curie stand out is its balance of science and storytelling. Sobel writes with clarity and elegance, never oversimplifying Curie’s work but always anchoring it in the human experience behind the science. The book is as much about persistence, courage, and identity as it is about radiation and elements. By the final pages, readers feel they know not only what Marie Curie discovered, but who she was in all of her complexity: a scientist, a mother, a widow, a patriot, and a pioneer. As Sobel said, “A scientist in the laboratory is not only a technician, but also a child confronted by natural phenomena more enchanting than any fairy tale.”

The Elements of Marie Curie is both a thorough introduction for those learning about Marie Curie for the first time and a portrait with a unique perspective for those already familiar with her legacy. Sobel weaves the story of the discovery of the structure of the atom into her narrative of Curie's life, which show just how rapidly the understanding of the atom and matter changed during Curie's lifetime, propelled in part by her discoveries.

On mark of Marie Curie's stature in the science community is that she was the only woman to attend all of the Solvay Conferences from their inception in 1911 to the conference in 1933 the year before her death.  In fact, only Paul Langevin also attended all of the conferences.  Other attendees included de Broglie, Einstein, Planck, Rutheford and other luminaries in the world of physics. Curie said of the conferences, “I take such great pleasure in speaking of new things with all these lovers of physics.” 

I loved the book. I have read several accounts of Marie Curie's life including a middle-school level biography in French. Each time I read about Curie I learn something new about her life. With Sobel's book, I felt most vividly how Marie Curie's life influenced the times she lived through.  



Sunday, January 8, 2023

The Physics of War: From Arrows to Atoms by Barry Packer, Book 1 of 2023



My first book of 2023 is one I was reading off and on through most of last year. It is an odd book that is more history than science, but not history of science. It is a history of weapons that has some very simple physics added to the descriptions to show how the weapons work.  

In its pages are brief origin stories of weapons, such as the long bow and the hydrogen bomb, with some details about the science behind them.  

If you are looking for a history of weapons with a little of the physics of how they work, this book is just what you have been looking for.  If you are looking for details of the science that underpins airplanes, bombs, and missiles, the references in the index will point you to deeper treatment of individual weapons.  

One very helpful aspect of the book is reading about the pace of weapons development and how rapidly those weapons changed war.  The first gatling gun, the predecessor of the machine gun, was developed in the mid 19th Century. Very little was done with it for a couple of decades, then at the beginning of the 20th Century the multi-barrel gatling gun had developed from a large horse-drawn-carriage weapon to a compact, deadly single-barrel weapon that could be fired by two soldiers.  The slaughter of World War I was in part set up by the machine gun which forced stagnant warfare and massive use of cannons.

The first aircraft flew in 1903. By 1916, both sides in World War I had fighter and bomber aircraft over the battlefields.  The first lumbering tanks rolled to battle at 3-5 mph at the end of that war. 

Two decades later tanks were fast, mobile and massed in thousands for invasion covered by swarms of bombers.  The war ended when those bombers dropped the first atomic bombs.  Radar and espionage get their due in this brief history with a nod to drones at the very end. 

Interesting history of weapons with a sprinkle of physics.  
 


Tuesday, August 23, 2022

QED: The Strange Theory of Light and Matter by Richard Feynman Book 30 of 2022


 
At the beginning of his third lecture/chapter in the book QED: The Strange Theory of Light and Matter, Richard Feynman says:
Most of the phenomena you are familiar involve the interaction of light and electrons--all of chemistry and biology for example.The only phenomena not covered by this theory (QED or Quantum ElectroDynamics) are phenomena of gravitation and nuclear phenomena; everything else is contained in this theory.
And QED is a theory because it predicts the behavior of light and electrons better than any other theory. That's how a conjecture becomes a Theory.
Everything about science is contingent. A new discovery submitted to rigorous testing can and will replace the previous understanding.

In his inimitable way, Feynman walks the reader through adding arrows of probability and showing how these probabilities are behind all of matter, everything we see and touch and all the processes that keep living beings alive.

The final chapter of the book is about nuclear physics--the particles inside atoms surrounded by clouds of electrons and photons that hold atoms together and give them their chemical character. And in one last paragraph, Feynman says gravity is something else entirely, vastly weaker the electromagnetic forces which are vastly weaker than nuclear forces.

By then end of the book, I could see the oak table next to me as swarming with energy and activity. Uncountable electrons around and between and among billions of nucleii. And these hard, heavy centers of atoms, while held in a rigid grid also vibrate with activity, exchanging baryons, muons, mesons, and other particles while held rigidly together.

Even a glimpse into the mind of Feynman is as exciting as a story of discovering a new world.





First 29 books of 2022:

Spirits in Bondage by C.S. Lewis

Reflections on the Psalms by  C.S. Lewis

The Pope at War: The Secret History of Pius XII, Mussolini, and Hitler by David I. Kertzer

The Last Interview and Other Conversations by Hannah Arendt

Galapagos by Kurt Vonnegut

The Echo of Greece by Edith Hamilton

If This Isn't Nice, What Is? by Kurt Vonnegut

The War That Made the Roman Empire: Antony, Cleopatra, and Octavian at Actium by Barry S. Strauss. 

Civil Rights Baby by Nita Wiggins

Lecture's on Kant's Political Philosophy by Hannah Arendt

Le grec ancien facile par Marie-Dominique Poree

The Netanyahus by Joshua Cohen

Perelandra by C.S. Lewis

The Federalist Papers by Alexander Hamilton, James Madison and John Jay

First Principles by Thomas Ricks

Political Tribes by Amy Chua 

Book of Mercy by Leonard Cohen

A Brief History of Earth: Four Billion Years in Eight Chapters by Andrew Knoll

Prisoners of Geography by Tim Marshall

Understanding Beliefs by Nils Nilsson

1776 by David McCullough


The Life of the Mind
 by Hannah Arendt

Civilization: The West and the Rest by Niall Ferguson

How to Fight Anti-Semitism by Bari Weiss

Unflattening by Nick Sousanis

Marie Curie  by Agnieszka Biskup (en francais)

The Next Civil War by Stephen Marche

Fritz Haber, Volume 1 by David Vandermeulen







Wednesday, January 12, 2022

Book 2 of 2022: Marie Curie--a graphic novel biography in middle-school-level French

(In past years I have written an essay about the books I read in the previous year.  As my list of books gets longer and my memory shorter, I decided to write about the books as I read them rather than 2000+ words at the end of the year.)

 


In November I visited the Institute Curie near the Sorbonne in Paris.  This book was on the shelf in the tiny bookstore inside the small museum.  I read kids books in French to keep some level of reading comprehension.  This graphic novel gave me a chance to practice French and to remember what I learned about the life of this remarkable scientist.  

I learned a lot about Marie Sklodowska-Curie's life because more than half the book is about her childhood in Poland and struggles to get to France to study physics.  When I read about her previously, it was about her research and life-saving work in World War One.  

After I finished the book, I looked up how many people have won Nobel Prizes:  962 laureates earning a total of 603 prizes (as of 2020).  Just 59 laureates are women and Marie Curie is the first.  

Just four laureates have received two Nobel Prizes:  

Linus Pauling won a chemistry prize and a peace prize.

John Bardeen won the Nobel twice in physics.

Frederick Sanger won two chemistry prizes.

Marie Sklodowska-Curie won the Nobel Prize in physics and in chemistry: the only person to be awarded to Nobel Prizes in two different fields.  She is extraordinary, even among the short list of multiple Nobel laureates.  

If you read French at all, the book is fun to read and not difficult.  

The summary on Goodreads:

Cette biographie de Marie Curie (1867-1934) retrace les principales étapes de son existence : son enfance en Pologne, sa scolarité studieuse et ses études supérieures, son arrivée à Paris, sa rencontre avec Pierre Curie, ses recherches sur le radium et ses découvertes sur les rayons X, l'obtention de ses prix Nobel en 1903 et 1911 et son engagement pendant la Seconde Guerre mondiale.



Monday, December 6, 2021

Air Speed Versus Ground Speed on a Bicycle

 

Riding around the airstrip at Camp Adder, Iraq

One afternoon in Iraq in 2009, I decided to ride to supper from the motor pool on a day with a howling wind out of the west. I rode two miles in a crosswind then had to make a left and ride a half mile straight into that 30-mph wind.  Ten feet after the intersection I stopped.  I could not make my single-speed bike move another foot.  

A couple of Special Forces soldiers in an SUV saw me. They gave me and the bike a ride to the mess hall.  I assured them the ride back would be a "breeze."  I thanked them and went to dinner.  That sandstorm was the only time the wind completely stopped my ride.  

In the last week I was paying attention to air speed versus ground speed on my bike.  The group that I ride with has not gotten together because of rain and detours on the route.  I did my usual 25-mile solo ride that is 12.5 miles south ending in a 3-mile uphill, followed by 12.5 miles north beginning with a series of downhills covering three miles.  

The second of the four hills is the steepest.  Last Saturday Strava my top speed (ground speed) was 49mph.  Sunday it was 52mph. Today it was 48mph. As I was riding home today, I was thinking about my air speed.  

On Saturday, the wind was out of the northwest at 10 mph.  The north component of the wind was 7mph so my air speed was 56mph.  On Sunday the air was calm.  Ground and air speed equal.  Today the wind was 5mph out of the north northeast. That put the headwind a 4mph and my air speed at 52mph.  So Saturday was clearly the fastest ride down the 12 percent grade on Route 272 North.  

 Air is always apparent on a bike.

The Great Divorce by C.S. Lewis – A Review

C.S. Lewis ’s The Great Divorce is both a dream-vision and a philosophical fable about eternity. The title, drawn from William Blake ’s T...