Breaking through the glass ceiling can be tough, especially when you are a woman in a traditionally male-dominated field. This week’s episode takes a look at women in chemistry. First, we learn about the brave physicist after whom meitnerium is named. Then we talk with Donna Nelson, a chemistry professor and spokeswoman for women in the sciences. Finally, producer Catherine Girardeau shares an interview with her grandmother, a dietary researcher credited with changing the eating habits of Americans in the mid-20th century. Element of the Week: Meitnerium.

Listen now (streaming file)
Download (11.4 MB MP3 file)

Show Clock

00:00 Opening Credits
00:30 Introduction
01:19 Element of the Week: Meitnerium
03:21 A Conversation with Donna Nelson
07:30 Feature: The Career of Helen B. Brown
11:31 Quote: Abigail Adams
11:43 Closing Credits

Resources and References

Interested in learning more about women in the sciences? Check out Margaret Rossiter’s books on women scientists in America before and after 1940.
For more about meitnerium, visit Periodic-table.org.uk.
Check out Nelson’s diversity studies on women and minorities in the field of chemistry.

Credits

Special thanks go to Hilary Domush for researching the show.

Our theme music is composed by Dave Kaufman. Additional music from the PodSafe Music Network. Additional music is “Chopin is Dead,” by Adhesion, “The Shadow of Time,” by Little Red King, and “Bogalusa Strut,” by Sam Morgans Jazz Band.

This week’s image is of Dr. Helen Brown and Dr. Irvine Page of the Cleveland Clinic, 1962. Courtesy of the Cleveland Press Collection.

This week we delve into the world of experimenting on oneself. Many scientists have both knowingly and unknowingly used themselves as guinea pigs in the lab. Marie and Pierre Curie, discoverers of radium, are examples of the self-sacrificing scientist. We learn more about the Curies and others in this episode. Then we speak to Rebecca Herzig, a professor at Bates College in Maine and the author of Suffering for Science: Reason and Sacrifice in Modern America. And finally, we take a look at the latest trend at the pharmacy—home DNA test kits. Element of the Week: Radium.

Listen now (streaming file)
Download (11.4 MB MP3 file)

Show Clock

00:00 Opening Credits
00:32 Introduction
01:23 Element of the Week: Radium
03:03 Conversation with Rebecca Herzig
08:04 Chemistry in your Cupboard: Home DNA Test Kits
10:51 Quote: Edwin Emory Slosson
11:14 Closing Credits

Resources and References

Learn more about radium on the Los Alamos National Labs Web site.
For more about suffering in the name of science, check out Herzig’s book.
Find out more about home DNA testing in this MSNBC article from May 2008.
For related reading, a Discover reporter had her DNA analyzed and tells her story here.

Credits

Special thanks go to Dominique Tobbell for researching the show.

Our theme music is composed by Dave Kaufman. Additional music from the PodSafe Music Network. Additional music is “Air And Wave Variation,” by School of Ambience, “Nitelife on Mars,” by Freaktet, and “Apple Chunk Guitar,” by AjT.

This week’s image is of a Home Paternity DNA Testing Kit from Identigene.

All over the Midwest, farmers are cranking up their combines for the corn harvest. Modern agriculture depends on science and technology at every step of the way, from genetically modified crops, to the fertilizer on the fields, to the fuel in the tractor. We begin today’s show with a look at nitrogen fixation, a process that’s credited both with feeding the world and making modern warfare possible. Next, producer Amy Coombs invesigates how scientists are finding secondary uses for the byproducts of biodiesel. Our executive producer Audra Wolfe wraps up the show with a look at the chemical cycle of life, through compost. Element of the Week: Nitrogen.

Listen now (streaming file)
Download (11.2 MB MP3 file)

Show Clock

00:00 Opening Credits
00:21 Introduction
01:21 Element of the Week: Nitrogen
03:27 Feature: Biodiesel and glycerine
08:06 Mystery Solved! Compost
10:43 Quote: Walt Whitman
11:16 Closing Credits

Resources and References

For an accessible overview of the historical role of nitrates in war and agriculture, see Dennis W. Barnum, “Some History of Nitrates,” Journal of Chemical Education 80 (2003): 1393-1396.
You can learn anything you could possibly want to know about compost from Cornell University’s “Science and Engieering of Composting” Web site.

More Whitman!

As promised, the full text of Walt Whitman’s poem, “This Compost,” from Leaves of Grass:

This compost

Something startles me where I thought I was safest,
I withdraw from the still woods I loved,
I will not go now on the pastures to walk,
I will not strip the clothes from my body to meet my lover the sea,
I will not touch my flesh to the earth as to other flesh to renew me.

O how can it be that the ground itself does not sicken?
How can you be alive you growths of spring?
How can you furnish health you blood of herbs, roots, orchards, grain?
Are they not continually putting distemper’d corpses within you?
Is not every continent work’d over and over with sour dead?

Where have you disposed of their carcasses?
Those drunkards and gluttons of so many generations?
Where have you drawn off all the foul liquid and meat?
I do not see any of it upon you to-day, or perhaps I am deceiv’d,
I will run a furrow with my plough, I will press my spade through
the sod and turn it up underneath,
turn it up underneath,
I am sure I shall expose some of the foul meat.

2

Behold this compost! behold it well!
Perhaps every mite has once form’d part of a sick person–yet behold!
The grass of spring covers the prairies,
The bean bursts noiselessly through the mould in the garden,
The delicate spear of the onion pierces upward,
The apple-buds cluster together on the apple-branches,
The resurrection of the wheat appears with pale visage out of its graves,
The tinge awakes over the willow-tree and the mulberry-tree,
The he-birds carol mornings and evenings while the she-birds sit on
their nests,
The young of poultry break through the hatch’d eggs,
The new-born of animals appear, the calf is dropt from the cow, the
colt from the mare,
Out of its little hill faithfully rise the potato’s dark green leaves,
Out of its hill rises the yellow maize-stalk, the lilacs bloom in
the dooryards,
The summer growth is innocent and disdainful above all those strata
of sour dead.

What chemistry!
That the winds are really not infectious,
That this is no cheat, this transparent green-wash of the sea which
is so amorous after me,
That it is safe to allow it to lick my naked body all over with its tongues,
That it will not endanger me with the fevers that have deposited
themselves in it,
That all is clean forever and forever,
That the cool drink from the well tastes so good,
That blackberries are so flavorous and juicy,
That the fruits of the apple-orchard and the orange-orchard, that
melons, grapes, peaches, plums, will none of them poison me,
That when I recline on the grass I do not catch any disease,
Though probably every spear of grass rises out of what was once
catching disease.

Now I am terrified at the Earth, it is that calm and patient,
It grows such sweet things out of such corruptions,
It turns harmless and stainless on its axis, with such endless
successions of diseas’d corpses,
It distills such exquisite winds out of such infused fetor,
It renews with such unwitting looks its prodigal, annual, sumptuous crops,
It gives such divine materials to men, and accepts such leavings
from them at last.

Credits

Special thanks go to Audra Wolfe for researching the show.

Our theme music is composed by Dave Kaufman. Additional music from the PodSafe Music Network. Additional music is “Up at the Farm,” by Heth and Jed, “Dr. Tom’s Farm,” by Naughty Jack, and “Plucky,” by Podcast Troubadour.

This star of this week’s photo is Jillie the goat.  Jillie lives on the farm of Audra’s sister, Sarah Wolfe, in Hazleton, Indiana. Photo by Debbie Wolfe.

In the eleventh century the first camera obscura was invented, helping artists draw. It would be another eight centuries before people figured out how to capture images directly onto film. This week we focus on photography. We start with a look at how selenium is important to black and white photography and photocopiers. Next, CHF’s David Caruso talks about objective versus subjective photography—and if objective photography can even exist. Finally, producer Emily Wilson takes us on a preview of the exhibit Brought to Light, a show about modern science and photography that will be at the San Francisco Museum of Modern Art beginning on 11 October 2008. Element of the Week: Selenium.

Listen now (streaming file)
Download (11.5 MB MP3 file)

Show Clock

00:00 Opening Credits
00:31 Introduction
01:10 Element of the Week: Selenium
03:13 Commentary: Objectivity vs. Subjectivity
06:04 Science and Photography at SFMOMA
10:50 Quote: Terrence Donovan
11:15 Closing Credits

Resources and References

For more information about scientific photography, read this article in the Winter 2006/7 issue of Chemical Heritage.
Also be sure to check out the Brought to Light: Photography and the Invisible exhibit at SFMOMA.

Credits

Special thanks go to David Caruso for researching the show.

Our theme music is composed by Dave Kaufman. Additional music from the PodSafe Music Network. Additional music is “Hangin’ Ten on the Shinkansen,” by Vincent Van Go Go, “Ain’t in the picture,” by Uninvited Dinner Guests, and “Knock Knock Knock,” by Podcast Troubadour.

This week’s photos courtesy of the SFMOMA Brought to Light exhibit. From top to bottom: Henri van Heurck, X-ray of a hand with a ring, 1896; Printing-out paper print; 6 3/4 x 4 1/2 in. (17.2 x 11.5 cm); Courtesy Galerie GÉRARD-LÉVY, Paris. Edward L. Allen and Frank Rowell, The moon, made at the Observatório Nacional, Cordoba, Spain, 1876; Carbon print; 20 1/2 x 16 1/4 in. (52.1 x 41.3 cm); Stephen White Collection II, Los Angeles. Eadweard Muybridge, Bouquet with rider, ca. 1887; Collotype.