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Writer's pictureSofia Ng

Strong Women: Emmy Noether

Born on March 23, 1882, Emmy Noether was a mathematician whose work changed both algebra and theoretical physics. Despite being a woman in a time when academia wasn’t welcoming to her, she became one of the most important figures in mathematics.

Strong women - Emmy Noether

Emmy’s early love for math was inspired by her father, Max Noether, a respected mathematician. While she initially studied languages, her passion for math quickly took over. In 1907, she earned her Ph.D. from the University of Erlangen, becoming one of the first women in Germany to receive a doctorate in mathematics.


However, her path wasn’t easy. Women were not allowed to hold official teaching positions, so she was barred from becoming a professor. Still, her talents couldn’t be ignored. She lectured unofficially, and her insights in mathematics attracted students from around the world.


The Algebra Revolution

Noether’s most significant contributions were in the field of abstract algebra. She developed Noetherian rings and Noetherian modules, which became foundational for modern algebraic geometry and commutative algebra. These concepts remain essential in mathematics today, and her influence is felt in countless areas of the field.


Noether's Theorem: A Game Changer for Physics

In 1915, Emmy Noether made one of her most famous discoveries: Noether’s theorem, which connects symmetry in physical systems with conservation laws. This theorem showed that every continuous symmetry corresponds to a conservation law, which became a key principle in theoretical physics. Her work is fundamental to our understanding of the laws governing the universe, influencing everything from general relativity to quantum mechanics.


What is Noether's Theorem?

Think about when you’re playing on a swing. If you pull back and let go, you swing forward and then back again, right? No matter how many times you do it, the swing always follows the same path. The rules of swinging don’t change because everything around the swing stays the same—this is called symmetry.

Playground swing set
Playground swing set

Noether's theorem says that when there’s a symmetry like this, something special is always saved or "conserved." For the swing, what’s saved is energy. As you swing up, your energy changes from moving fast (speed) to being high up (height), but the total amount of energy stays the same—it just swaps between types.

Noether figured out that for every kind of symmetry in nature (like the swing’s movement or a ball rolling smoothly), there’s something that doesn’t change, like energy or momentum. This idea helps scientists understand why certain things, like energy or momentum, stay the same, no matter how they move around.


Facing the Nazi Regime

As a Jewish woman during the rise of the Nazis, Emmy Noether faced persecution. In 1933, she emigrated to the United States and continued her work at Bryn Mawr College and the Institute for Advanced Study at Princeton. Despite the challenges, she never stopped contributing to mathematics and remained a major figure in the field until her death in 1935.


Why She Still Inspires Us Today

Emmy Noether's work didn’t just change the fields of algebra and physics—it paved the way for women in academia. Despite systemic discrimination, she refused to let her brilliance be dimmed. Her resilience and passion for math serve as a lasting inspiration to this day.


Fun Facts

Mathematics from Day One

Even as a child, Emmy was drawn to math, playing with her father's notes and exploring shapes—laying the groundwork for her future brilliance.


Breaking Gender Barriers

Women weren’t allowed to enroll in courses when Emmy started, but that didn’t stop her. She attended mathematics lectures at the University of Erlangen anyway, defying the norms.


Teaching in Secret

When the University of Göttingen denied her an official teaching position, the legendary mathematician David Hilbert invited her to teach in the basement. Her classes quickly became a magnet for students eager to learn from her genius.


Praised by Einstein

Even Albert Einstein couldn’t ignore Emmy Noether’s brilliance, calling her “the most significant creative mathematical genius” of her time. Not bad coming from one of the greatest minds in history.


Overcoming Prejudice

Despite constant challenges and being overlooked, Emmy’s work prevailed. Her perseverance earned her the respect she deserved, but it took time for many to fully recognize her contributions.


Remembered on Google Doodle

On March 23, 2015, on what would have been her 133rd birthday, Google honored Emmy Noether with a Google Doodle, featuring a stylized portrait of her and symbolic representations of mathematical concepts she pioneered.

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