Author: adohertyh

End of 2018 (Recalling the Lab)

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Professionally, 2018 was a good year: my sabbatical work was published in the Journal of Physical Chemistry C. That came from a long time writing and a long time in this lab.

Testing Facility

Berkeley Lab’s Frei Group was kind enough to share their space with me, and I could not have done that work without this high vacuum line. I’ve always loved the way understanding the components of a system can take a complicated image like this one and break it into understandable parts. This image, in particular, gets less odd after the realization that this is two lines, mounted back-to-back, in the same Unistrut frame.

High Vacuum Line

Stairs to Ice

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When winter is temporarily interrupted (as it is today in Northern New York) by a sudden thaw and double aliquot of rain, the ice on the Grasse River breaks up and clusters around the rocks and islands. This path in Canton, New York has been rendered impassable by a pack of rogue ice forced between the two sets of stairs by the high water.

Stairs to Ice

Holy Symmetry

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Though the symmetry of Notre Dame de Paris stands out from the mere mortal constructs around it, I enjoy playing the game of identifying the breaks in its symmetry. Some of those are small, like the different statues around the building. Others are more significant, like the triangle in place or an arch above the left-most set of doors.

Holy Symmetry

City of the Living and City of the Dead

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Though additional cemeteries in Paris were banned in the late 18th century, the Montparnasse Cemetery was opened in 1824 because the area had not yet been incorporated into the city. Today, it’s an odd dark space in the otherwise bright city. The idea of adjacent blocks belonging to graves and apartments has a polite kind of symmetry.

City of the Living and City of the Dead

Standard Paris Street

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The homogeneity of Parisian streets seemed a little bit anomalous to me until I visited the Catacombs and came to realize that much of the stone making up the city had been quarried from directly beneath it. The cave-ins and collapses that this eventually produced demanded the project of stabilizing these artificial caverns and ultimately made room for the human remains that now occupy them.

Standard Paris Street

Brightest Tower

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After nightfall, the Eiffel Tower puts on an hourly strobe light show that transforms the tower into a sparkly pillar in the city skyline. Much as a flash can brighten a photograph, this effect also means that long-exposure photographs of the tower make it the brightest object in the skyline by an order of magnitude.

Brightest Tower

Boats in the Seine Near Notre Dame

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The bridge in the distance is the Pont au Double, and it is one of several that connect the Rive Gauche to Île de la Cité. That central island fascinates me because it is the site of the medieval refounding of the city. The island used to be packed with residences alongside government and religious buildings. Today it is almost entirely dominated by the latter buildings (like Notre Dame on the right), yet I heard that census information still lists a few hundred people living on the island. Where are those last homes hiding?

Boats in the Seine Near Notre Dame

Tour Eiffel

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There’s that perfect moment when the sky is still blue but the oranges of sodium vapor lamps begin to scatter from the surfaces of the clouds and the Eiffel Tower looks particularly otherworldly. When so many American cities have switched to lighting their streets with white LED lights, I was surprised at how much of Paris is still lit by sodium lamps.

Tour Eiffel