In honor of our latest snowfall in this very snowy winter, here's a link to Caltech physicist Kenneth Libbrecht's site on snow crystals -- where you can find everything from the physics of snowflakes to, yes, historic snowflakes (via Kepler, Descartes, Hooke, Bentley, and Nakaya), time-lapse movies of snowflakes growing in the lab, and instructions on how to go snowflake watching yourself on a winter's day, with magnifier in hand.
If you'd rather stay indoors with an excellent book, the recently published examination of The Immortal Life of Henrietta Lacks by Rebecca Skloot would be a good candidate to consider. I'm one-third of the way into it and find it hard to put down, because each thread of the book is so riveting.
Henrietta Lacks was a young African-American woman with cancer who was treated at Johns Hopkins in the post-World War II era of segregation, where medical researchers obtained a sample of her cells and successfully nurtured them in cell culture for research purposes. While Lacks would die in 1951, her cancerous cells were the first that proved to be "immortal," continuing to divide over and over again, multiplying on into the future, being replicated at such a scale that one estimate places their number at 50 million metric tons. The cell line was named HeLa after the first letters of her name, and the cells were the "first human biological materials ever bought and sold, which helped launch a multi-billion-dollar industry." The interweaving stories of the Lacks family and the white medical establishment, of the evolution of medical research at the cellular level, of the emergence of bioethical quandaries, of how generations have been dependent on medical breakthroughs made possible with the HeLa line -- each reveals different facets of the reality that we are all Henrietta's children in a profound way, as individuals and as a modern society. Even before I've finished the book, I can see how Skloot's skill and ingenuity aids us in bringing together insights about how the history of science, medicine, and technology can help us ask better questions about the present we live in and the future we envision, while demanding from us a better accounting of the past.
You can hear an interview about the book via podcast from NPR's Science Friday. And here's an excerpt from the book's website.
Also new, is a series of podcasts by Neil MacGregor, Director of the British Museum, who is counting down A History of the World in 100 Objects in partnership with the BBC. Last week featured the Rhind Mathematical Papyrus from circa 1550 bce, which "contains 84 different calculations to help with various aspects of
Egyptian life, from pyramid building to working out how much grain it
takes to fatten a goose." The episode features a discussion of humanity's "early experiments with numbers and how
the Egyptians’ understanding of mathematics enabled them to build a
state machine, which could manage food supplies and even compute the
flood levels of the Nile" (14 minutes). Next up, three days of the mysteries of Ramesses II's giant statue. [For the Mad Magazine version of this sort of learned historical tour, see the Onion's "Top Ten Stories of the Last 4.5 Billion Years." Which was my favorite? There were too many to pick just one :-)
And, speaking of reeeeeeeeeeeeallly old stuff, Archaeology poses the question: "Should We Clone
Neanderthals? The Scientific, Legal, and Ethical Obstacles" (by Zach Zorich in the March/April 2010 issue). The folks at the blog 80beats (Discover.com) think it over and conclude that "some things are best left in the past." Take a look -- what do you think?