Category Archives: Link

Doo-W0p DNA

Sorry for my absence this past month.  A new teaching gig has been eating up all my time.  But work is slowing down, so I should have a new post soon.

In the meantime, I thought I’d share this video from SciShow, a vlog that’s a favorite around the Allen household.  Their videos combine science with a sense of humor (a style I awkwardly try to replicate at G of I).  Their video below describes “musical genes”, genes that control your musical aptitude.  Check out the rest of their videos at this link: https://www.youtube.com/user/scishow.

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Women in Science

My latest article for LadyFreethinker.org focuses on stereotypes against female scientists. While researching for this article, I stumbled upon a study that found most people can only name one prominent female scientist (Quick! Who can you name?). I quizzed myself and Marie Curie popped into my head, along with Rosalind Franklin and a few others from UCSF and Berkeley where I did my graduate and postdoctoral studies. But I have to admit, the names of women were harder to think of than those of famous male scientists. I couldn’t even remember Rosalind Franklin’s full name without a quick google. I’m so ashamed.

As penance, I’ve decided to do a recurring set of posts on female scientist for Gene of Interest. These women were trail blazers in a field that did not welcome them-some would argue still doesn’t.

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Marie Curie

Though most people already know of her, I’ll start with Marie Curie. Born Maria Sklodowska, in Russian-occupied Poland in 1867, both of her parents were teachers. She studied at Warsaw’s “Flying University,” an underground university that accepted women at the time, but longing for a real degree she eventually moved to France to pursue her masters at the Sorbonne University in Paris [1].

In France, she changed her name to Marie, the French version of Maria. She met Pierre Curie at the Sorbonne and the pair bonded over their mutual love of science. They pushed each other to pursue PhDs, working in Pierre’s modest lab. At first the pair worked on separate projects: Pierre on crystals and magnetism; Marie on a new type of ray emitted by uranium discovered by Henri Becquerel. Marie found that uranium caused the surrounding air to conduct electricity. This property depended only on the amount of uranium, regardless of its form or the surrounding chemical composition. From this, she hypothesized that radiation came from the atom itself, a landmark discovery [2].

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Marie and Pierre Curie

Even though she regularly asked Pierre for advice, Marie made it a point to establish ownership of her ideas. Research into the properties of uranium was entirely her idea, and she knew that no one would believe a woman had developed this work on her own [3]. As her work developed, Pierre found her research more interesting and eventually abandoned his own work to help her full time.

In the summer of 1898, Marie and Pierre published a paper on their discovery of a new element they named ‘polonium’ after Marie’s native Poland. Just months later, they published another paper on a second element they named ‘radium’. They also coined the term ‘radioactivity’ [4]. Their work won them a Nobel Prize in Physics, an award that almost didn’t include Marie. Pierre had to convince the committee to add Marie’s name to an award for work that was almost entirely hers [5].

Marie Curie was the first woman awarded a Nobel Prize. A few years later, for her discovery of ‘polonium’ and ‘radium’, she was awarded a second Nobel Prize in Chemistry, and became the first person in history to win two Nobel Prizes [6].

Sadly, little was known about the dangers of radiation at the time. Marie Curie would often walk around with samples of radium in her pockets. Her laboratory notes emit radiation to this day [7]. After years of exposure to radioactive material, Marie died of aplastic anemia.  In 1995, both Pierre and Marie’s remains were moved to the Pantheon in Paris, in honor of their great scientific achievements [8].


References
[1] “Marie Curie – Biography“. Nobelprize.org. 4 July 1934.  Retrieved 6 April 2016.
[2] “Research Breakthroughs (1897 – 1904)“. American Institute of Physics. 2000.
[3] Robert William Reid (1974). Marie Curie. New American Library. ISBN 0-00-211539-5.
[4] “The Discovery of Radioactivity“. Berkeley Lab. 9 August 2000.
[5] “Recognition and Disappointment (1903 – 1905)“. American Institute of Physics. 2000.
[6] “Marie Curie – Facts“. Nobelprize.org. 4 July 1934. Retrieved 6 April 2016.
[7] “Marie Curie’s Research Papers are Still Radioactive 100+ Years Later“. Open Culture.com. 8 July 2015.
[8] “The Radium Institute (1919 – 1934)“. American Institute of Physics. 2000.

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Weaponized Genetics

Genome editing a potential WMD?  According to the recent worldwide threat assessment, genetic engineering is as concerning as North Korea’s nuclear program.  Sounds silly, but the implications of recent advances, particularly CRISPR-Cas9, are pretty scary.  Follow the link below to my newest article on LadyFreethinker.org to read more.

Genome Editing Now Listed as a Weapon of Mass Destruction

CRISPR-Cas9 acts like a word processor for the human genome.  The potential advances in medicine, agriculture, even human evolution are staggering.  I’ve attached a great video by Youreka Science and iBiology that explains how CRISPR-Cas9 works using only a white board.  I mean the video uses a white board, not CRISPR… Check it out below.

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Déjà Food: Would You Eat Cloned Beef?

Less than two decades after the birth of Dolly the cloned sheep, the Chinese company Boyalife plans to construct a cattle cloning factory by mid-2016.  Read all about it in my article at LadyFreethinker.org

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