Late spring on college campuses around the country presents perhaps the loveliest views to the fewest people—students have graduated and perhaps a few reunioners are the only audience.
Tag: science
Cartesian Grid of Building 66
The utilitarian, earthquake-resistant architecture of Berkeley Lab amid the verdant hills of the East Bay seems like a science-fictional setting—a location that can’t possible exist—in contrast to San Francisco in the distance.
Winter On Campus
St. Lawrence University’s campus is quiet for the moment; athletes have returned early from break but pretty much everyone else is still on winter vacation. The snow adds an extra layer of dampening.
When they return, the school will once again take on its weird ski lodge vibe.
End of 2018 (Recalling the Lab)
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.
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.
Spectroscopy Lab
Approaching the summer solstice, the start of fall-semester classes and their attendant labs seems far away, but a new class of St. Lawrence first-year students will be here before I know it.
This was one of the light sources students were interrogating: a sodium lamp, like the ones used in street lights (at least in the twentieth century—LED street lamps are becoming increasingly dominant now.)
532 nm
In St. Lawrence’s Raman spectroscopy and microscopy lab, the most potent laser illumination source comes from a neodymium-doped yttrium aluminum garnet. This is a pretty ubiquitous laser source, but I happen to like it because it also demonstrates the value of nonlinear optics: though this laser is emitting light at 1064 nanometers (in the infrared), a suitable doubling crystal can combine two of those 1064 photons together to make a shiny new 532 nm photon.
Headlights and City Lights
The foreground of an image from the Berkeley Hills is usually a dark network of trees and trails, but the conveniently timed headlights of a car at Lawrence Hall of Science lit up the dry grasses of midsummer. Their oranges matched the sunset.
This Is the Laser
The laboratories of physical scientists across the planet have pulsed laser systems like this one, and many look quite similar: a collection of squat boxes covering optics, electronics, and beampaths. Above or below the surface of the table are additional boxes of electronics driving the lasers and detectors. This particular system is special to me for two reasons: (1) most modern laser tables don’t have rad wood grain paneling, and (2) this was the instrument I used during my sabbatical at Berkeley Lab last spring. Lots of good data emerged from its photomultiplier tube.
Upgrading the Advanced Light Source
Berkeley Lab’s Advanced Light Source, a massive X-ray laser sourced from a building-sized particle accelerator, was undergoing upgrades while I visited. Construction in the area added an mundane veneer to the superscience happening inside.
California Convertible at Midsummer
Our first snow of the year arrived last night, so I thought now was a perfect time to look back on summer nights with convertible German sports cars and Bay Area sunsets.
Spectroscopy Lab
After spending my entire adult life as a laboratory scientist, the web of gas lines and vacuum pumps and electrical cable seems normal. I do understand, rationally, that all of this looks overwhelming. There’s so much purpose and productivity behind the network, however, that it’s worth the sophistication.
A Midsummer Night’s City
In the Berkeley Hills, above the National Lab’s Advanced Light Source, the view over Oakland’s twinkling night sprawl entrances. Look at all of those light-emitting objects! As LED lights have replaced sodium vapor models, I’m particularly fascinated in the shift as cities glow white, instead of orange.
Golden Light on Oakland
On the trails of Berkeley’s Hall of Science, Bay Area residents watch the last light of the day on the Advanced Light Source and downtown Oakland. The area has multiple layers in physical and information space.
Landing the Molecular Foundry
Lawrence Berkeley National Laboratory sits in the Berkeley Hills, so close to multiple centers of scientific and technological innovation; the intellectual climate on its campus is astonishing. One of the newer facilities on campus is the science-fiction-come-to-life Molecular Foundry. The most dramatic part of the building hangs in space above the bay. I can’t resist the image of a spacecraft coming in for a landing.
Fusion Ball
That Newtonian worldview (one of cause and effect, of a Universe that is fundamentally understandable), so often criticized as unromantic and clinical, makes this setting transform: where there was once a bucolic sunset over empty fields, there is now a repeating pattern of polymerized sugars on an iron-cored planet, gravitationally bound to a thermonuclear fireball. Isn’t that cooler?
Decaseconds 