Microblog

On my walk, I stopped by Seward Community Co-op, owned by over 23,000 households, including our own. The large bags on the left contain teff flour, a staple for many customers with Somali heritage. On the right there’s a well-managed produce department where I can pick up a single potato if that’s all I need. I left with a heavy daypack filled with root vegetables, lamb chops, and crusty bread.

I’m glad to report that diversity, equity, and inclusion were thriving in the classroom today. Our words and actions align.

Tomorrow, I’ll be helping English language learners prepare for their Personal Care Assistant (PCA) certification test. So, I decided to take the online course and test today to earn my own PCA certificate. I’m grateful for the people willing to do this work. It can be challenging, and the pay isn’t ideal.

Today, we visited the Tibetan Shrine Room, a temporary exhibition at the Minneapolis Institute of Art. Buddhist artifacts are arranged as they might be found in an affluent Tibetan home. Buddhism’s emphasis on kindness to others is a valuable lesson for our times.

Retreating from the cold wind, I sought refuge in the skyways. Here, I’m walking through the Central Library, a place I rarely visit since I primarily borrow e-books online. My mind drifted to the stunning Mediatheque in Sendai, Japan, designed by Toyo Ito. I enjoyed a Sunday afternoon there, sheltering from an inbound typhoon, experiencing how libraries can be reimagined and be relevant and popular in the future.

Serendipitously, I discovered a novel LEGO machine designed by Hiro Labo, a professor at a university in Osaka, Japan. This conceptually simple machine reliably performs binary addition on two single-bit numbers, without the excessive joint play and gear backlash I’ve experienced in other designs. Naturally, I had to replicate it: the plates on the left stack to form the adder on the right.

Well, that was something new for me today: I attended my first baby shower. Our nephew and his wife, who are expecting a daughter, flew up from Houston, TX, for the event at my sister-in-law’s house. It was a chance to reconnect with family and enjoy some cake.

Rode the LRT to St. Paul’s Midway neighborhood, then walked to get a haircut. Along the way, encountered a loon (our state bird) with an 88-foot wingspan in front of the Minnesota United soccer stadium. This was unexpected. I learned it was designed by an artist from Scotland, a country devoid of loons.

Looked up at these simple truths as I waited this morning for the bus to a school where immigrants, regardless of their legal status, are highly motivated to learn. In my first class, I worked with learners preparing to become certified nursing assistants, addressing a critical need in Minnesota.

A friend and I wandered around the University of Minnesota’s East Bank campus, testing doors. Most required a card swipe, but we occasionally found unlocked doors, allowing us to explore further. Two students offered to swipe us through a locked door, but we decided against it, not wanting to contribute to the delinquency of youth. We did discover this lovely seating area in Burton Hall without breaking rules.

The outside temperature this morning was -18°F, meaning another day indoors. Made use of the exercise room and daydreamed about our upcoming six-week trip to a warmer climate. Our large deionized water tank won’t be enough, so I connected a second tank–usually reserved for outdoor plants on the balcony–to our system. A pump transfers water from the smaller tank to the larger one.

It was a day for isolating ourselves from the world: the weather was still too frigid to go outside, plus we declared a no-news day. I prototyped a LEGO pneumatic AND gate that functions significantly better than the gates I built yesterday. However, I won’t be building a pneumatic adder any time soon because I don’t have enough pistons.

All logic functions can be constructed using AND and NOT logic gates. Modern smartphones contain billions of logic gates. However, the LEGO machine I constructed today only has four AND and four NOT gates to perform binary addition on two single-bit binary numbers. As the signal propagates from the inputs on the left to the outputs on the right, the cumulative effect of joint play leads to unreliable output movements. I need to redesign the machine.

Drove from heated garage to heated garage for a Minnesota Orchestra concert of music by Nordic composers. There were nods to hygge, which was fitting with temperatures staying in negative territory for a few days. We’re not leaving our building again until Wednesday.

It was almost balmy weather for January in Minnesota (in the thirties) as I walked to the University for a consultation and medication top-ups (injections). With temperatures expected to drop below zero for the next few days, I’m anticipating a period of hibernation. This appointment was therefore well timed.

Over tonkotsu ramen, Dwight and I compared notes about our day–he in the greenhouse, me in the classroom. I showed him photos of a sad-looking plant in the classroom. He suspected overwatering and advised deionized water would be better than tap. He also suggested the plant needed to climb and might benefit from fertilizer after its dormant period. I’d previously used Google Lens on the plant, and it had led to similar advice.