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Kevin Waldron
597 posts

Kevin Waldron
@WaldronLab
British/Irish in Poland ---------------------- Institute Professor, Lab of Metalloprotein Biology, IBB-PAS, Warsaw ---------------------- Tweets entirely my own
Warsaw Beigetreten Mart 2023
815 Folgt725 Follower
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That one neuron connects to about 7,000 others. Your brain has 86 billion of them. Do the math and you get somewhere around 100 trillion connections inside your head. More connections than stars in 1,500 galaxies.
And each connection point is way more complicated than anyone expected. A Stanford lab found that every single connection contains about 1,000 tiny switches that can store memories and process information at the same time. So your brain is running roughly 100 quadrillion switches right now, while you read this sentence.
The wild part is the power bill. Your brain runs on 20 watts. That’s less energy than the light in your fridge. The world’s fastest supercomputer needs 20 million watts to do the same amount of raw calculation. A million times more power for the same output.
We’re still nowhere close to understanding how any of this works. In October 2024, a team of hundreds of scientists finished mapping every single connection in a fruit fly’s brain. Took six years and heavy AI help. That fly brain had 140,000 neurons. Yours has 86 billion. Google and Harvard also mapped a piece of human brain last year, a speck smaller than a grain of rice. That speck alone contained 150 million connections and took 1,400 terabytes to store. The lead scientist said mapping a full human brain at that detail would produce as much data as the entire world generates in a year.
A tiny worm had its 302 brain cells mapped back in 1986. Almost 40 years later, scientists still can’t fully explain how that worm’s brain keeps it alive. Your brain has 86 billion of those cells, each one wired to thousands of others, each wire packed with a thousand switches, all of it humming along on less power than a lightbulb.
Nicholas Fabiano, MD@NTFabiano
This is 1 of 86 billion neurons in your brain.
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Greek physician George Papanicolaou invented the Pap smear technique for cervical cancer screening. After his PhD, he immigrated to the US in 1913 with wife, for research opportunities.
In U.S he couldn't recruit subjects for vaginal smears. His wife stepped in, providing daily samples from 1914 for over 21 years—about 7,600 tests—collecting and preparing them herself since George lacked a U.S. medical license. While working at Cornell University Medical College, New York, these samples allowed George to track cellular changes from her reproductive years through menopause, establishing baseline patterns for normal and abnormal cells, which was foundational for identifying cancer indicators.
All the work of George was possible only because of his wife, Andromachi Mavrogeni Papanicolaou (known as Mary, born in 1890 in Greece), who decided to step in as a volunteer human subject. George was poor in English and had communication problems, which made the hurdle of obtaining a medical license even greater when he landed in the U.S. It would be impossible for George to advance his research without his wife stepping in. The couple chose not to have children to dedicate themselves to science.
In the early 1940s, George Nicholas Papanicolaou’s work got international recognition. The couple later in 1961 moved to Miami and founded the Papanicolaou Cancer Research Institute at the University of Miami. George died on February 19, 1962, from a myocardial infarction. His Pap smear method revolutionized cervical cancer screening, saving millions of lives globally. After George's death, Mary continued his work at the institute.
In 1969 ( seven years after the death of George), the American Cancer Society honored her for her contributions.The citation highlighted her "unselfish contributions," including her role as the primary human subject for over 21 years, her unpaid work as a lab technician and manager at Cornell, and her recruitment of other volunteers, all while handling household duties to allow her husband to focus on research.
On this Women's Day, let us celebrate not only the ladies who are frontline achievers but also those who contribute to the betterment of the world in the background, through the strong resilience which encompasses womanhood.
Glory to Andromachi Mavrogeni Papanicolaou and her husband. Happy Women's Day!

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Chcemy doganiać Europę w B+R?
To spójrzmy na liczby:
8,5% – średni wzrost wynagrodzeń w 2025
3% – waloryzacja wynagrodzeń w nauce
Nie da się wzmacniać nauki, systemowo osłabiając ludzi, którzy ją robią.
#BiedaWNauce #3procentNaNaukę #Nędza #PosełKulasek #GadamyżeRobimy
Nauka w Polsce@naukawpolsce
Nakłady na B+R w Polsce muszą dogonić średnią europejską, mamy w rządzie tego pełną świadomość - powiedział minister nauki @MarcinKulasek @MNiSW_GOV__PL naukawpolsce.pl/aktualnosci/ne…
Polski

Huge thanks to the team members on the study: Kacper and Eilidh, during my time in Newcastle, and Rafał from the Warsaw team @IBBPAS. Also, to collaborators Arnaud, who helped with the crystallography, and long-time US collaborator Thomas Kehl-Fie.
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