Wesley's Tool-Box

At 5 PM, December 14, 2024, National Assembly of the Republic of Korea passed the motion to impeach President Yoon Suk Yeol on its second attempt. This was the culmination of the huge backlash that was caused by the short-lived martial law that Yoon imposed on December 3. I joined the pro-impeachment rally that was taking place all over Yeouido, and held a spot right in front of the entrance to the National Assembly building from around 2:40 PM.

When the motion finally passed, the entire crowd erupted in a huge celebration, and the press photographers seized the chance to record the moment. As it turned out, I was in the frame in several instances:

- Korea Economic Daily (Hankyung)
- Hankyoreh (1), (2)
- Chosun Ilbo
- Hankook Ilbo (4th photo)
- Seoul Shinmun
- Dailian
- OhMyNews (3rd & 10th photos)
- Edaily
- Yonhap News (1), (2) [on Hankook Ilbo's Extra Edition (1), (2)]
- Workers' Solidarity

On a related note, I uploaded a video to YouTube that shows how things went from my perspective that day.

Along with my Bolt EV passing the 160,000 km milestone, the new battery that came with the recall has logged more than two years and 57 thousand kilometers of use. So it was a good time to check on how its performance compares to the original battery. The video I uploaded at YouTube on this topic covers everything including how the data was obtained, but I'll cut to the chase here. The data for the old battery is divided into two ranges, the first part that spans 25 months and 51,585.4 km, and the second part that covers 23 months and 52,940.1 km. The new battery's data is treated whole, totalling 57,945.3 km and 28 months.

The division on the old makes it ideal to explain its degradation trend in just two linear polynomials, and also is close to a single quadratic or cubic counterpart for the scope in question. The results showed that the degradation of the old battery in its first two years was steep, amounting to about 0.660 kWh of loss every 10,000 km. In contrast, the new battery was doing much better at about 0.311 kWh per the same distance. While the degradation slowed down for the old one in the subsequent years, it was still worse than the new one's initial performance. So it's evident that the new battery is much more resilient.

While many comets pass near the Earth every year, most of them don't get bright enough to be easily observable. The Tsuchinshan-Atlas (C/2023 A3) comet was an exception, and it was apparently bright enough to be spotted with naked eye in early October. But during that time the weather was either cloudy or rainy where I live, so nearly missed out on personally observing it.

Thankfully, patience and readiness paid off, and when the skies were cleared up for a few hours during the evening yesterday I got my iPhone 16 Pro out to take photos of the comet from the balcony. The best example of the observation is what you're seeing in the first photo.

Although the comet was no longer visible to the naked eye and there was plenty of light pollution from the city, the camera on the phone was still able to capture the comet with an 8-second exposure under Dark Mode. Marfik (Lambda Ophiuchi), a 3.8-magnitude star is right next to it, and the 4.3-magnitude Sigma Ophiuchi is below it, so you can gauge that the comet was at least as bright as a 3-magnitude star at the time. This is in line with my previous observations where the iPhone's wide-angle lens was good enough to capture a star as dim as magnitude 5.

Device: iPhone 16 Pro
Settings: 24mm equiv. - ISO 800 - 8s - f/1.78
Time: 2024-10-20 18:56 KST
Location: Naju, Korea

After observing the ISS last year, I was waiting for some interesting changes on board the space station. And this came in the form of the Boeing Starliner spacecraft docking on June 6 as a part of the Crew Flight Test. This test was originally planned to last about a week, but thruster issues kept preventing its return to Earth. This meant that when I finally got the opportunity to make an observation in Daejeon after the monsoon season was over, I could photograph it with the ISS.

Weather in August was still unstable, and forecast for August 15 was cloudy with a chance of rain in many places. But outlook for Daejeon was clear, so drove my car there to make an attempt. And as forecasted, I could see the Sun onobstructed and was able to make a satisfactory observation, as you can see in the composite photo above. The docked Starliner is easily visible as a bump on the left-hand side of the space station's main modules. You can also see the large sunspot named AR3784 near the center of the Sun.

For those who are not familiar with the space station's structure, here's an enlarged photo showing where the Boeing Starliner is currently located within the space station. It's docked to the IDA-2 at Harmony module's forward port. SpaceX Dragon spacecrafts have docked at this location before, so some of my previous observations show that at the same spot instead.

Device: Nikon P1000
Settings: 3000mm - ISO 125 - 1/2000s - f/8
Filters: ICE N100000 (Neutral Density 16.5 Stop)
Time: 2024-08-15 14:20 KST
Location: Daejeon, Korea
17 photos processed with Pixelmator 3.6.6, RegiStax 6.1.0.8, and PIPP 2.5.9

Since June 2018, I've been trying to drive my Bolt EV at every opportunity to personally confirm that an electric vehicle can rack up a lot of distance without much issues. One milestone I targeted is 100,000 miles (160,934.4 km) or just 160,000 km, since this is where all the car warranties expire. While I'm sure to reach that point this year, a more round number in terms of metric measurement - 150,000 km (93,206 miles) - has come to pass recently.

I know that there are already several instances of other electric vehicles surpassing two hundred thousand or more kilometers without major problems, so I had no worries about mine holding up. Still, I saw this as a good time to check up on the condition of the car before the government mandated biennial vehicle check-up is done in the May-July time frame.

On the battery front, things had been going really well. The current one is a 64 kWh version that was replaced for free due to the recall back in July 2022. So it's been in use for nearly two years. On one hand, it was disappointing to lose an opportunity to use the original battery up to its warranty limit of 160,000 km. On the other hand, this gave me a chance to compare the characteristics between the old and new battery packs.

And as it turns out, the new version seems to hold the capacity better than the old one. It started out at 60.61 kWh and the reported capacity hovered around between 59 and 62 kWh throughout all these months. With the car cruising past the 150,000 km mark, the capacity was at 61.19 kWh, which indicates almost no significant degradation. The old pack had a steady degradation of about 2 to 3 kWh at a similar time span and distance traveled, so that's a notable improvement in terms of capacity retention. A more detailed analysis of this might be prepared for either the 6-year anniversary or the 160,000 km mark.

You may need to type in words or sentences in the Apple Vision Pro from time to time, be it for searching something in the Internet or writing up a memo. If you need to write something long, the best way to do this would be to connect a Bluetooth keyboard like you see here. Tactile feedback and touch typing makes things comfortable and quick.

For short inputs, the integrated virtual keyboard that you control with the hand gestures is the way to go. The problem is, the visionOS only supports English as of version 1.1. The only other alternative is emojis, and you can't yet add another language or a 3rd party keyboard.

This is probably an artificial limitation set by Apple since the product was initially launched in the U.S. only. Still, it means that there's no native way of entering Korean text. Bluetooth keyboard follows the layout setting on the virtual keyboard, and there's no Korean language layout to switch to. In other words, it's stuck in English unless some workarounds are applied. So what are they?

One of the main reasons I developed a wearable computer two decades ago was to have a computer available for use while on the move. Since Vision Pro is also a computer you wear on your body, I wanted to see if it was just as versatile. So I brought it to a local park in the Travel Case and wore it at a bench as you can see above. The wearing process itself took about 90 seconds to complete, which isn't that different from my old creation.

Once the system is booted and ready for use, I can load up the Home View and launch apps, all of which are floating but "anchored" to the surrounding space. Although the default way of interacting with the elements in a window is via hand gestures, I can just walk up to the window and "touch" it to use it like a huge touchscreen. There's no haptic or tactile feedback, so it's a bit awkward. However, the audible cue does make you feel that there's a slight feedback and it helps.