GG Anderson

@ggaatplay.bsky.social

Engineer turned computational biologist. Working to integrate clinical genomic diagnostics into healthcare.

Historian of science Margaret Rossiter (d #OTD in 2025) coined the term #MatildaEffect (1993). Named after suffragist Matilda Joslyn Gage, the Matilda Effect describes a systemic bias where women's scientific achievements are ignored, minimized, or directly attributed to their male colleagues. 1/3

A black-and-white photograph of the pathbreaking American historian of science, Margaret Walsh Rossiter (1944–2025), renowned for coining "the Matilda effect" and documenting the buried history of women in science. Seated in an indoor setting with a soft, blurred background, Rossiter is positioned from the waist up, facing forward with a warm, open smile. She has short, curly gray hair and wears dark, thick-rimmed glasses. She's wearing a light-colored, long-sleeved shirt patterned entirely with small, dark polka dots. She holds a heavy, open book resting on her lap or desk, her left hand steadying the right-hand pages while her right hand rests on the left-hand pages, lightly gripping a pencil. The overall composition is intimate and studious, casting her as an approachable yet deeply focused scholar. The mood is intellectually vibrant and welcoming, reflecting a life dedicated to uncovering the truth.

Helen Sawyer Hogg: one of the most prominent & celebrated astronomers of the 20th century. She revolutionized our understanding of the universe through her foundational research on globular clusters--massive, spherical groupings of closely packed stars orbiting the core of our galaxy. #WomenInSTEM🧵

A striking profile portrait of renowned astronomer Helen Sawyer Hogg (1905–1993) standing before the David Dunlap Observatory dome, symbolizing her pioneering decades mapping globular clusters and variable stars. Photographed from a slightly low angle, the older, white-haired scientist gazes upward and to the left with a serene, proud expression, her face warmly illuminated by natural sunlight. She wears glasses with tortoiseshell arms, a simple headband, a structured pinkish-gray tweed jacket, a delicate gold necklace, and a round gold brooch on her collar. The soft-focus background highlights the white architectural dome of the observatory contrasted against a deep blue sky and dark green trees, emphasizing her lifework in observational astrophysics. The composition balances her dignified human presence with the monumental scientific structure behind her, evoking a hopeful, reflective mood that honors her historical significance as a barrier-breaking female leader in 20th-century global science.

Mathematician & geodeist Dr. Irene Fischer helped guide NASA to the moon. Joining the US Army Map Service in 1952, she unified centuries of broken data to calculate the Earth’s precise size/shape. Her calculations allowed NASA to safely program Apollo moon landing trajectories. #WomenInSTEM (1/3)🧵

A historical, black-and-white portrait from 1966 of mathematician and geodesist Dr. Irene Kaminka Fischer (1907–2009), who unified world geodetic datums to guide NASA's Apollo moon missions. Captured in a head-and-shoulders, passport-style composition against a plain, light background, she poses facing forward with a calm, dignified, and intelligent expression. Her dark hair is styled in a voluminous, coiffed mid-century bob with a lighter, prominently swept-back section framing her forehead. She wears a dark jacket or dress featuring a wide, rounded Peter Pan collar, a thin necklace chain, and round stud earrings. Pinning her collar is an elegant, leaf-shaped brooch. In the upper right corner, the number "4" is printed as a small inset digit. The portrait conveys a formal, professional mood, serving as an important historical record of one of the 20th century's most accomplished female STEM pioneers during the peak of the Space Race.

Chemist Alice Ball was born #OTD in 1892. The first Black woman to earn a Master's in Chemistry, she developed the Ball Method & it became the standard treatment for leprosy worldwide for >2 decades. BUT, just a year after her discovery, others took credit for her work. #WomenInSTEM (1/3) 🧵

A black-and-white vintage graduation portrait of Alice Ball, a young Black woman with short, curly dark hair. She wears a traditional black academic cap with tassel and a dark gown over a high-collared white blouse, with a light-colored hood draped around her shoulders. She gazes directly at the camera with a calm, confident, and composed expression against a plain studio backdrop.

Electric bills are way too high — particularly PG&E — and plug-in solar is a great way to lower those bills. I’m authoring legislation to allow Californians to easily use these devices; it’s currently quite hard, if not impossible, for people to do so.

California bill backs plug-in solar as PG&E rates soar, and renters could save on power

"Anyone can access it to harvest sunshine and generate immediate energy savings."

yahoo.com

Hunters and anglers are often on the frontline of protecting public lands. "the roadless rule encompasses just 27.7% of all USFS land, only 3.17% of wildfires start in those areas, while 90% of all fires in the U.S. start within half a mile of a road"

New Map Visualizes Roadless Rule Impact on Public Lands Near You

The 2001 Roadless Area Rule is under fire on multiple fronts. As Meateater has reported, Congress is considering a bill that would repeal the rule. At the same time, Mike Lee tacked on an amendment to...

themeateater.com

Physicist Gertrude Scharff Goldhaber was born #OTD in 1911. In 1942 she discovered that spontaneous fission is associated with the emission of neutrons and in 1948 she identified beta rays as atomic electrons. 🧪 ⚛️ 👩‍🔬 Image: Brookhaven National Lab

Black and white photo of Gertrude Scharff Goldhaber. She wears a sleeveless white blouse with a white collar, along with a necklace that is hard to see clearly. Her hair is short and she is smiling at the camera.

Trees take years to grow. A mature tree that's been standing for decades can be felled in minutes. That gap—between the time it takes to build something and the time it takes to destroy it—is worth sitting with. It's why thoughtful land use matters.

Bild

Mathematician Marie-Louise Dubreil-Jacotin, known for her work in both fluid mechanics and abstract algebra, was born #OTD in 1905. She was the first woman to hold a full professorship in Mathematics in France. 🧪 ⚛️ 👩‍🔬 🧮 Image: MacTutor History of Mathematics Archive

A black and white photo of Marie-Louise Dubreil-Jacotin. She is shown from the side, and from the shoulders up, with her head turned to her left to face the camera. She has short dark hair curled up at the bottom, and appears to be wearing a gown than sits low on her shoulders. She is smiling, not looking directly at the camera but slightly below and to the left. A necklace is just visible, but the photo is low resolution so it is hard to make out details.

Astronomer Henrietta Swan-Leavitt was born 158 years ago today. Though hired as a computer by Harvard Observatory, she soon began making observations, including noticing a connection between variable star period and intensity that provided us with our first universal yardstick. tinyurl.com/56ueap7h

Summing the Cosmos: Henrietta Swan Leavitt and the Saga of the Cepheid Stars

Astronomy is the sifting science. Its practitioners rake the sky, star by star, collecting and cataloguing, and when they are done, they begin again, through years and decades and generations. What th...

tinyurl.com

Canada's first female nuclear physicist Harriet Brooks (b #OTD 1876) was a researcher in the early days of nuclear science. Her work on radioactivity laid foundational groundwork for modern nuclear physics. She discovered the phenomenon of atomic recoil. But, her career ended early. #WomenInSTEM 1/2

A black-and-white portrait of nuclear physicist Harriet Brooks (1876–1933), celebrated as Canada's first female nuclear physicist who co-discovered radon gas and atomic recoil. She poses against a plain, studio backdrop, turning slightly to her left while looking off-camera. Her expression is composed and thoughtful, carrying a subtle, understated confidence. Her light-colored hair is styled in a soft, wavy updo, framing a youthful face with a clear complexion and a soft, closed-mouth smile.Brooks wears formal academic regalia, featuring a dark graduation gown with structured, pleated shoulders over a high-necked, dark turtleneck or blouse. A thick, dark fabric sash or academic hood strap with a light fur trim runs diagonally across her chest from her right shoulder. The composition centers tightly on her upper torso and head, utilizing soft studio lighting that creates a bright, dignified, and historic mood.

Today we celebrate the 150th anniversary of physicist Harriet Brooks's birth. Before marriage compelled her to give up her career, she was one of the world's most significant nuclear physicists, discovering the phenomenon of nuclear recoil, credit for which was stolen from her. tinyurl.com/mvcd3ape

Wither: The Many Triumphs and Long Fall of Nuclear Physicist Harriet Brooks.

Reading the life of Harriet Brooks is like watching the gradual, inevitable unfolding of a horror movie. There's that same idyllic, promising beginning that suddenly gives way as the heroine puts her...

tinyurl.com