I had no schematic and my memories were vague, but I recalled that there had been three types of relays, all operating at different voltages, which made for a complicated arrangement of relay contacts and coil terminals. There was yet another voltage involved in lighting up the display. I wanted to figure out how I had managed all this complexity back when I barely understood power supplies, and then figure out how to renovate it, with the least amount of re-wiring.
As I went about tracing wires, confirming contacts with an ohm-meter, I gradually built up a re-understanding of how the relays were interconnected. Some of the wires had broken and so I could only guess their destinations. I eventually figured out how the three different relay types managed to propagate the time signal from one level to the next. As I worked on this, there were more than a few times when I wondered “how could this have ever worked?”
My printed tile map. It identifies the fat and skinny rhombus tiles so that I knew how many to make and how to place them. It was generated based on a simulation of an edge length of 250mm and a gap width of 6mm, adding up to a nice binary number.
I suspended this project in order to go on a roadtrip to capture pictures of the night sky in the beautiful deserts of the Southwest. I am currently working on them, and hope to share them soon, but the Penrose tile floor project carries a higher priority—we want our screen porch back while it is still summer!
Having prepared my tiles to the best accuracy I could coax from my woodworking tools, I now faced how to place them on the floor. As before, I considered the advice from Ken Adelman, who recommended “dis-aligning” the pattern from the rectangle of the room, to avoid difficult or awkward-looking tile fragments at the edges. He also recommended identifying a center point and creating reference lines radiating at angles that match the pentagonal symmetries of the tiling.
Career “trophies”, coffee mugs, one of which was created by dye printing technology (depicting our development team), the other a memento commemorating the issue of an arcane patent.
There is a more general problem related to the “what to do with old lab notebooks” that some of us face. It is what to do with our shoeboxes of photos (virtual digital shoeboxes and real ones). And written correspondence. Love letters. Birthday cards and holiday cards that caught our attention enough that we saved them. The trophies, actual physical trophies, or the certificates of commendation for a job well done. Birth and death announcements. Souvenirs of our travels, the mementos of the high points of our lives.
All of them carry great meaning to us, invoking a romantic haze of fond memories from those times and places, for those people and events. Yet those memories are internal to us; they are not shared, even with the persons we may have shared the moment with—at least not exactly. Each of them has his or her own version of those scenes. And they are not shared in the same way with our children, and certainly not their children. Our lives are an abstraction to them. They weren’t even around when the main story was unfolding.
I have come to realize this in the last few years as I have processed the items left behind by my parents after their deaths. I have a high regard for my father’s technical acumen and his many projects. Some of them were to gather and archive family history, others documented his personal interests. He was always an early adopter of technology and embraced digital photography well before I did. He acquired a large collection of both film and digital pictures, organized in shoeboxes and digital folders. He worked to digitally scan historic family photos that dated back to the 19th century.
There is a treasure trove of history here, some even recent enough to overlap with my own, yet I do not find myself compelled to explore it. And therein lies the problem. If I am not inspired to carry forward the artifacts of prior generations, why would I expect subsequent generations to propagate mine?
A scanned portrait of an unidentified woman in the family photo collection.
My father, an early adopter of nearly everything, took on a project to digitize a collection of historical family photos that had accumulated over many generations and that were now in his possession. It was the early years of digital photography when scanning technology was barely up to the task, and computer image file formats were crude by today’s standards.
Nevertheless, he forged ahead and built a repository of over 700 scanned photographs dating back to the 1800s. He recognized a weakness in the collection—there was no context, no annotations, no identifications of the people portrayed. Old photographs lose their value when this information, originally held in the memories of those who were around at the time, is not recorded.
My father knew this and wanted to somehow attach the information about the photo, in the scan of the photo. I know this, because he asked me (an imaging scientist) about how to do it. Unfortunately, at the time, there was no standardized way to embed such “metadata” within existing image file formats. He was a man ahead of his time.
When given subzero temperatures, freeze soap bubbles.
This is one of those things that I have wanted to do for some years. Living in a place where the temperatures drop to levels well below those in your freezer that solidify water and can preserve slabs of reindeer meat, each year I enjoy a few days of dangerously cold weather. One can throw a pot of hot water up in the air and it turns into a spectacular cloud of steam and snow; no liquid lands on the ground! It is also possible to blow soap bubbles that freeze into gossamer ice globes. They are delicate and beautiful, and I have long wanted to photograph them.
Each year when the outdoor temperatures drop sufficiently, I have tried to do this. Invariably, there is too much wind—any wind is too much—and the bubbles wander away. The ones I can catch, usually burst before I can take their picture.
This year however, I had a new strategy. We recently installed windows on our outdoor screen porch. The temperature remains cold, but the wind is completely blocked. I can now make soap bubbles and they won’t get away!
This is adapted from a tribute that my father made at the memorial of his father, Theodore Olson, after whom we are both named, who died in 2002 at the age of 97. I post it here for the online access of posterity, and to provide a portrayal of the scientific mindset of a family patriarch that influenced not only his students, but his entire family and several generations beyond. Here is my father’s rendition of our family history.
The start of this story goes back almost 150 years. In about 1860 in Norway, Hans Opjörden left home and went to Oslo. Hans had the misfortune to be the second son in his family, and that meant that his older brother would inherit the family farm. Hans left home and headed off to Oslo, where he went to work in a shipyard building boats. After a while he decided he really wanted to sail on the boats instead of just building them. At this time Norway was a province of Sweden. Shrewdly, Hans changed his name from Opjörden to Olson (with a Swedish spelling) and got Swedish sailing papers.
He went on several voyages and along the way befriended a shipmate named Peter Magnus Peterson. We can imagine a conversation between them based on what subsequently happened. Hans confided that he’d really wanted to be a farmer but had no prospects of getting land—and that being a sailor was not his “dream job”, but was good paying employment.
The internet has evolved tremendously since its early days when I first tried to use web pages to show the results of my nighttime photography. Back then, our (dial-up) Internet Service Provider (ATT) offered a home page and a URL subspace to their customers. I took advantage of it and crafted some pages to hold my pictures and stories. Later, I acquired my own domain, nightscapes.net, found a host, loaded my stuff onto it and even got some professional help to re-organize when it became unwieldy.
I learned that maintaining a website can be a lot of work; the technology evolves, links and scripts break, web page conventions, html standards and visitor expectations change. I’m not a programmer (despite a lifetime of doing it), and my interests are in the art and science of images, not the latest network and browser technologies for supporting the latest desktop/laptop/tablet/phone displays.
So I was excited to discover a website service oriented toward photographers, a platform with a small army of support people who maintain it, with features that display photographs at their best, regardless of display or browser, keeping up with the latest updates to internet programming standards. They offer additional services for professional photographers (“buy print”, etc), and at an earlier time I might have subscribed to them.
But I am happy now to keep the shopping cart icons suppressed and not distract from the images themselves.
I have transferred my collection of nightscapes accumulated over the last two decades, over to smugmug, where you can find it at thorolson.smugmug.com. I know people don’t power-browse through large collections of pictures, so I consider this to be really more of an archive, to continue my project of making a digital coffee table book of my favorites.
But I will also use the site to display my more recent work, as I complete it. It will be a relief to have a way to do so without the overhead of manually creating and integrating new web pages for them.
I intend to make posts to this, my personal website, when I add new photographs. I invite you to subscribe or “follow” me, which will send you an email when new posts are made. If you are intrigued by the types of pictures I like to take, well, I take enjoyment in sharing them and would love to have you as a follower.
I am at the end of my designated time for this
expedition. I must now return from
whence I came, to a civilization density that can host a technical conference,
and will also develop the latent images captured on my film from this remote
beautiful place.
As I reflect on the past few days I realize that there are
more things that I would like to do. I
never did get to the Goulding Museum, or to the trading post near there (which
I was told by the traveler couple was closed on the weekend).
Mars over Mittens, Twilight at Monument Valley Nov 1, 2005, Monument Valley AZ Pentax 6×7, Provia 400, 30 sec at f/3.5
I have long been fascinated by the landscapes of the southwest, and in particular the peculiar rock formations found in Monument Valley, a unique area straddling Arizona and Utah. I am not the only one that finds them intriguing: it is a very popular photographic and film-making target.
When a business trip took me to a conference in Phoenix, I
decided to prepend a personal trip to this Navajo Nation Tribal Park to take pictures
of the night sky. My plans were
ambitious; I wanted to take wide angle star trail photos featuring the famous
buttes, but also, knowing how remote and dark this area would be, to take
guided astrophotos of some deep sky targets.
