HDR Photography
This image is my submission to the Spring Photo Contest being run by Grasse River Heritage; the river and its associated park are its subject. I delight in being asked to work under requirements—in this case, both a subject and a time of year—because I feel it focuses me. I get to achieve something specific, which adds some delightful pressure to flying my quadcopter around the island.
I’ve heard that the Land Rover (previously Rolex) Kentucky Three-Day Eventing competition is the sport’s largest and most prestigious. In spite of that, no spectators were allows this year; the glowing press box looked pretty lonely in a darkened, empty indoor.
The “let’s enhance” action continues with this image of Berkeley’s College of Chemistry, Strawberry Canyon, and South Campus from the top of the Campanile. It holds a special place in my heart because it shows the entire terrain I traversed going to and from work during my first year in grad school.
Extracting additional information from an image by “enhancing” it has long been a ridiculous trope of police procedurals; it’s with great amusement that I noticed that Photoshop’s new “Super Resolution” capability (which uses machine learning to quadruple the resolution of an image) is under an option called “Enhance”. The first subject for enhancement was this picture I took of Berkeley and San Francisco in 2011. It’s worth the click-through for the full resolution version.
(Adding to the super-resolution theme, this image also contains, in the lower-center, the Molecular Foundry and its associated center for electron microscopy.)
St. Lawrence’s campus emits white light at night, while Park Street uses orange sodium lamps.
A well-stocked and well-arranged chemistry lab tends to accumulate localized collections of one specific part that wind up looking like a page from a scientific supplies catalog.
The most senior faculty member in St. Lawrence University’s Department of Chemistry is preparing to retire and I selected this image to present to him. (Shhh, keep it a secret for a few more days.) He often looks out from Johnson Hall of Science, the building in the foreground, north towards the older parts of campus (like the chapel spire above the horizon.) In this image, I hopefully captured for him both where he stands and what he sees so that he can take them with him when he goes.
Over the course of the past two years, I’ve used OpenSCAD to design a gas/vacuum cell that can support a pressed silica nanoparticle pellet in front of a variety of spectroscopy systems. The core of the cell was 3D printed in aluminum by Shapeways, with some subsequent facing on our lathe to get good seals with the O-rings. This first version is designed to fit into our fluorimeter.
After using the first cell for a year, I realized I also wanted to be able to attach it to a fiber-optic-based spectrometer. Here, you can see the second cell attached to our Schlenk line.
A big, dramatic sky after a fresh snow matches the mood of St. Lawrence’s chapel.
April Fool’s Day played a prank on the reemerging plants of the North Country, dropping ice and snow onto green grass and growing buds.
This is my Schlenk line; there are many like it, but this one is mine. The double-manifold design allows my students and me to expose samples to either vacuum or inert gas (argon, in this case.) Every line has little tweaks and customizations made by the scientist using it, and is thus inevitably a work-in-progress. This particular line very much needs a full-time vacuum gauge as its next addition.
This tiny warm spot near both a vent (for heat) and a downspout (for ample rainwater) continues to have green grass while the rest of the campus is locked beneath a blanket of snow.
A Saturday morning rain left streams of water through Berkeley’s Normandy village and smudges on my camera lens, but when it was done, the sunlight perfectly spotlit the entrance to my apartment beneath a blue sky.
The classic winter picture of clean, fresh snow and bright blue skies seems much easier to come by, ironically, under less-wintery conditions near the beginning or end of the season. Under the snow at the edge of the patch in the foreground, you can see that the grass is still green.
In addition to photography, I’ve been exploring 3D printing in the past few years. I’ve found that it’s a great route to making small objects to support my science work. In this case, I was developing a holder to support a 12.7 mm pressed solid sample pellet inside the space normally occupied by a 10-cm pathlength liquid-handling cuvette. The result is this odd rectangular shape that unlocks to hold the “too wide” pellet diagonally—thanks, square root of two!
In these forms, I was working with a variety of materials, including glass-reinforced nylon, lost-wax-cast brass, and a bronze/steel powder combination.
Decaseconds 