Science or Sentiment

The title page of my grandfather’s PhD thesis, a thick volume of scientific discovery, each page typewritten in carbon-paper triplicate by my grandmother during their time at Harvard. Interestingly, it was submitted on his (54th) birthday.

“Long before the term ecology became a part of the vocabulary of the scientist, primitive man, looking out over the expanse of blue-green water which characterized his favorite fishing haunt, was probably aware of the fact that notable alterations in the color and clarity of this body of water would occur as the seasons changed.”

The introductory sentence of Theodore Olson’s PhD thesis on algae blooms.

I was witness to my grandparents’ transition to an assisted living apartment from the home they had kept for more than half a century.  Though modest, it was the center of a busy family’s activities, and had accumulated the corresponding mementos through the decades.  It had also collected the technical artifacts of my grandfather’s scientific career, specimens of insects and fish and algae from his ecological and entomologist specialties.  He kept copies of his and his peers’ published works, along with those of his doctoral students, who carried on these disciplines, with the scientific rigor and methods that he taught them over their years in his tutelage.

I was there on the day when he had to empty the ‘wall of books‘ in his home library, which included the dissertations of his students.  There was no space for everything at the new apartment.   A few important reference volumes could be retained, but the others?  What to do with them?  Here were the compiled and distilled understandings of pioneers in biology, acquired through years of painstaking research, building upon the pyramid of human knowledge.  These breakthroughs of their time have now been incorporated into our general understanding of modern biology. 

What should happen to the first-ever photomicrographs of blue-green algae blooming to produce cyanobacterial toxins?  What should become of the tabulated counts of seasonal species of mosquitos that were the vectors of mosquito-borne diseases?  What should be the fate of that first chart correlating taconite processing and asbestos-like fibers in Lake Superior?  All of these new discoveries had been first reported in his research and in the dissertations of his PhD students. 

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The Wall of Books

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. 

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Fifteen Minutes of Fame

Enjoying the beauty of the BWCA in Superior National Forest. See https://www.sylvansport.com/go-field-notes-boundary-waters-mn/

Andy Warhol, the celebrated pop artist of the 1960s, is credited with the quote “In the future, everyone will be world-famous for 15 minutes.” Well, I guess we have reached the future, because here is our fifteen minutes.

We are the proud owners of a trailer that converts into a tent-like camper. It’s made by a US company, Sylvan Sport. We first learned about it from my cousin Bonnie Norman, an early adopter of nearly everything, and when I finally relinquished my VW Eurovan Westfalia pop-up (to a deserving family eager to enjoy and care for it), this was the obvious replacement. We have enjoyed our “Go Trailer” for several years now and somehow (from Bonnie?), Sylvan Sport learned of our enthusiasm and wanted to feature us on their website.

Our travel plans this last year were modified, along with everyone else’s in this time of covid rules. We didn’t make the cross-country trips we expected, but substituted numerous short trips to our wonderful Minnesota State Parks. I also redeemed a coupon from the Gerard sisters, to guide me in the Boundary Waters Canoe Area, a destination I was embarrassed to admit as a lifelong Minnesotan, I had not yet visited.

It was a beautiful fall week and I took my usual collection of cameras. Sylvan Sport sent a photographer to capture it as well, and a writer later called to interview us. The result is a promotional piece on their website that depicts the experience nicely, despite being truly impossible to portray the full beauty of Boundary Waters.

A day in the life of a covid quarantiner

The path along Minnehaha Creek, a popular route for our daily walks.

Every day begins with coffee, of course.

Which fortifies me as I peruse the headlines and digest my various online sets of news sources.

Eventually, I reach my fill of virus and political news, but it can take several hours.  By this time, it is mid-morning and I think about which collection of projects to work on that day.  I have several categories:  some of them are administrative, the overhead of life, like gathering info for filing taxes, or processing the mail that has accumulated, aging any viral contamination on its outer surfaces.  Or making another pass at compiling the email addresses for my high school class, which drafted me onto its reunion committee.

Another category is more physically constructive.  It includes working in my garage shop, on a woodworking project or attending to the never-ending items on the home repair list.  If it is sunny, I will opt for the session in the workshop, whose clerestory windows provide a strong boost to the positive mood that comes from working with tools and material in my hands.

Lunchtime brings me back to the house to enjoy something delicious that Poldi has cooked up.  These days in quarantine have led her to expand on her already extensive skills in the kitchen.  I am the beneficiary.  She updates me on whatever news she has gleaned from her sources.

The afternoon brings another set of options.  We listen to the press conference of the state health department, absorbing the meaning of today’s covid infection and death counts.  We once again are appreciative that as retirees we can easily isolate, but fear for our neighbors, friends and family, who must somehow continue to carry on with their business and livelihoods but must curtail it to conform to the allowed social distance.

While the sun is still amplifying the ambient temperature, Poldi and I strike out for a neighborhood walk.  I have analyzed the relative risks of contracting the virus while outdoors and crossing paths with passersby, and our masks are at standby on our neck.  If we engage someone for a conversation, or enter a storefront, the masks are immediately deployed.  The outing in our neighborhood is therapeutic.  Although I am an introvert, Poldi needs more connection.  A walk around the block is not enough, but it helps.

The evening brings us back to home life.  Poldi pursues her passion for cooking.  I work on my various interests including my archives of photographs, wondering how best to curate them for subsequent generations and researchers.  Yes, I know, it is a bit of hubris, but it helps me follow Carl Sagan’s advice when asked about the purpose of life:  “To do stuff!” 

Our evenings wind down in front of the television, finding programs and episodes that distract us and amuse us.  We fall into bed, sometimes exhausted by the day’s events, and sometimes relieved by our shared life throughout the pandemic. 

We are the lucky ones.  We are confined to our home with someone we love. We wish you the same.

Seven Years After

A panorama taken from the viewpoint at the “elders table”. Officiating the event with his wife Karen, Max Allers had just declared “By the superpowers vested in me, I now pronounce Thor and Poldi truly united!”  (Click to zoom, and see if you can find yourself in the crowd.)

Seven years ago we hosted The (happily ever) “After” Party.  It combined a renovation-housewarming (a year after the “Before” Party), and a commitment ceremony to mark the choice to share our lives in This Odd House.  It had a sixties theme, having both grown up as quasi-hippies in the sixties, and both turning 60 that month, Poldi on that very day!

It has been a wonderful seven years since, filled with love and adventures, and we had hoped to invite everyone back to reflect on them and to see what has happened since.  While many of us have experienced life events and transitions in the intervening years (marriages, births, deaths, retirements), none of us could have predicted we would all be staying at home, avoiding gatherings to avoid germs for a full year.

Eventually we will be back to some form of a new normal when we can get together and exchange those stories.  In the meantime, here is a picture of the setting in our backyard seven years ago.  In this picture we are at the end of the sidewalk with champagne, reveling in the affection and love of all the people with whom we were sharing this highlight moment of our lives.

The Silent Key

The Vibroplex Deluxe Original telegraph key, first manufactured in 1939.

I was moved recently by an unexpected item encountered while clearing out my parents’ home.  They both passed away in recent years leaving, as we all will, a lifetime of accumulated possessions.  Perhaps it is a rite of passage that we all mark our parents’ passing with tributes and shared memories, and then respectfully distribute their earthly possessions.

Those possessions usually include home furnishings of a previous era, and clothing that might fit but doesn’t match anyone’s current style or fashion.  Many kitchen utensils will find their way to donation centers.  Easy items to dispatch are those for which there are few memories.  The more difficult are those with sentimental attachments.  

My dad was an amateur radio operator, a “ham”, which is a term for the enthusiasts across the world that participate in this form of communication, ever since Marconi sent his first wireless message.  There is a broad and varied number of these practitioners of a discipline that requires technical expertise and skill, and a desire to share their experiences “over the air”.  

I grew up in this culture, listening to the chirps and squawks of my dad’s radio receiver late into the nights.  One of the essential ham skills was to tap out Morse code messages with a telegraph key — the first level of an amateur radio license (“Novice Class”) required proficiency at five words a minute.  My dad was extremely skilled at this and could signal at much higher rates.  As one improved in this skill, the limitations moved from brain-hand coordination to the mechanical key itself.

This limitation was recognized early on, and various ingenious adaptations of the simple momentary contact key were invented.  Some worked better than others.  Over the course of my dad’s ham career he acquired various makes and models of telegraph keys with which he competed in amateur radio contests, to see who could make contact with the most other hams in a weekend.

His amateur radio station equipment will find homes with other ham operators, but his set of telegraph keys were distributed to his children, all of whom have those memories of dot-dash Morse code beeps in the night.  This is the item I received:  on a beautiful chrome-plated base, the key itself is a delicate collection of mechanical components, carefully balanced and customized to the hand of the operator.  I am told that operators have a distinct “signature” that can be recognized when listening to the delivery of Morse code, each hand having its own rhythm and style.

This identifies the manufacturer, Vibroplex, and proudly displays its serial number and patented status.  The logo is a lightning bug, carefully anodized or painted red on the brass plate, a feature maintained even on current models.  This may be a collector’s item as there are many similar to be found at http://www.vibroplexcollector.net.

The ham community has an endearing term of respect for their fellow amateurs who have since passed away: Silent Key.  It is a reference to the early days of telegraphy where the letters SK were sent to designate the end of a transmission, and then the station would become silent.  

There is a national silent key registry,  the cumulative obituaries of the ham community, where you can look up life accounts of past amateurs, including my dad, K0TO.

His station is silent now, but my memories of it will remain until I too become silent.

Swedish Candelabras – Finis

It is considered good practice to finish up the old projects before embarking on new ones, but that doesn’t seem to be my way.  The new one gets started and the old one languishes in its nearly complete state, sometimes for years, until I grant amnesty, allowing it to fade into memory.

I had reached the point in the Swedish candelabra project where the challenges of woodworking had been solved, a working prototype had been made, a dozen pieces had been crafted, and all that was left were the trivial details of wiring the electric LED candles.

It turned out that, while not technically challenging, it was incredibly tedious, threading wires, stripping insulation, soldering the bulb contacts, splicing connections and gluing the simulated plastic candlesticks in place.  The first one I assembled took hours.

With eleven more to go, I found lots of excuses to not do them.  Eventually however, when the summer heat advisories provided reason to retreat to the cool workroom in my home, I would complete one, or maybe two, each day.  Eventually I reached the last one, by which time I was proficient– only an hour of assembly!

I can now declare this project complete, and I look forward to displaying the candelabras in our windows when the season shifts once again to long cold nights.  I hope they are seen by the passing neighbors as signs of hope, warmth, welcome, and good cheer, just like the ones we enjoyed in Sweden.

The ancestral home of my great-great-grandfather Sven Johan Lundberg in Mulseryd, Sweden, during a light snowfall last December. If you look closely you will find that each window hosts a welcoming candelabra.

The 15-minute rule, and other covid recommendations

Keeping an eye on my watch while conversing.

Since writing the previous blog entry (“What is my risk?”) I have encountered additional information to refine the risk calculation I outlined.  I found a reference that provides a better value for the relative intensity of aerosol generation between the activities of talking and passive breathing: approximately 10X (compared to my placeholder value of 2).  When this weighting is applied to the social interaction duration histogram, the critical exposure is reduced from four person-intensity-hours to three.  

This does not seem like a large impact on critical exposure but the intensity level associated with talking now requires that all of those short interactions become shorter.  If the critical exposure is 3 hours at level 1 (silent breathing in the same room), and talking is 10 times more intense, then an exposure of 0.3 hours (18 minutes) in conversation with an infectious person will deliver the critical dose of virus-laden aerosols.  This suggests a limit of 15 minutes in any interaction with a stranger: the 15-minute rule.

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What is my risk?

Taking a calculated risk at a favorite restaurant’s outdoor patio

Ever since the covid19 stay-at-home orders were relaxed for my state, I have been struggling to find some rules to guide me as we try to safely host small gatherings with qualified friends (today’s rules: outdoors, safe-distancing, maximum of two guests–who have also been in semi-quarantine).

I’d like to know “what is my risk?” after encountering N people in a day and spending a certain amount of time with each.  In particular, if I interact with store clerks for a few minutes each, walk or bicycle past maybe a hundred people, or sit in a (sparse) movie theater with a few dozen others for two hours, what risks am I taking?  I want to put it in relative terms with the risk I willingly accept when I drive a few miles for an everyday errand.

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Swedish Candelabras

A modest Swedish house in Skalo, Poldi’s ancestral home. Nearly all the houses are in this traditional red color with white trim.
A close up shows the candelabras in the windows, a wintertime custom here.

While in Sweden over the Christmas season, we noticed the popularity of candelabras placed in the windows of people’s homes.  In these northern latitudes where the darkness of the winter night dominates the few hours of daylight, the distinctive chevron of lights provided a cheery greeting from the windows of the traditional-styled Swedish houses.  

I thought it would be a nice accent to our own home with its not-so-traditional windows cut into a mansard roof.  Surely Ikea would have such an item, with some suitable unpronounceable name, but I was disappointed.  Perhaps I needed to shop the Ikea stores in Sweden rather than our Americanized versions of them.

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