Monday, April 06, 2026

2026.2.24-26 Fire Fall at Yosemite

2/24, Tuesday. Flew to Fresno Airport (FAT - what's an acronym!) after work. Arrived ~10:30pm, and it was ~70°F! I like small airports. Could walk to the rental cars. Stayed in a hotel right by the airport (in case something goes wrong with the flight or the car).

2/25. Wednesday. Drove to Yosemite National Park hoping to see Fire Fall, the last 2 chances of this year. I'm aware of this Horsetail Falls in Feburary would catch sunset with a flaming orange. But this year, there's no permit required. So, with a quasi-optimistic forecast, we were trying our luck.

First thing first: shopping. Bought water, isobutane gas can, and a bunch of groceries.
2nd, get a CA Golden Bear pass. The closest, with a minor detour, is Millerton Lake. There's a state park office here. The lake is deserted. Saw only 1 other car. The picnic tables are disappearing into the grass.

2+ hour drive into Yosemite on 41. It's not as pretty as hwy 140. Other than a small section of construction, where a pilot car was used, all is smooth.

I've never seen Yosemite Valley snow covered. It's lovely. Even when I came in January once, no snow in the valley. Most of this snow is from last week's snow storm. Otherwise, Horsetail Fall would be dry. First stop: Bridal Veil Falls. Short walk. Very snowy. A lot of water. View of Yosemite Falls across the white meadow.

Driving around to the north park road. Checked into Yosemite Lodge. It has many identical looking buildings, with diffent names (which is not visible on all sides). Easy to get lost. Ours has the closed swimming pool in front -- helps me to orientate myself. Left the car there, and walked.

Walked to lower Yosemite Falls. A lot of snow. Did a bit of scrambling to get closer. Being sprayed wet.

Checked out the museum. I've been to the valley many times, but don't remember ever looked into this museum. It houses some huge weaved baskets with nice patterns, and the photo of the lady who made them. Must take months to do. An employee there was grinding a tree nut. I got to talk to him. Learned about the cones. The large and sturdy cone belongs to Foothill Pine - a locally common pine, endemic to California foothills. Its seeds are spread via the cones tumbling downhill.

Next door is the Welcome/Visitor Center. A large section is devoted to climbing history in the valley. Many photos, gears, rescue. Quite interesting. Here are the many routes on El Capitan. Its next door is Ansel Adams gallery, which is really a store selling santified reproductions of Ansel Adams' photos. There're also other photography books for sale. Most interesting is by Jimmy Chin, again, on climbing. Also inquired about the trail condition up towards Half Dome : no good, too much snow. The lady also said, if we wanted to see the Fire Falls, we should start walking asap. There's a time table printed for everyday: when the "fire" starts and when it disappears.

Went back to the hotel (it's on the way, picked up some food, and more clothes), then joined the every-increasing trickle walking west towards El Capitan picnic area. We saw people setting up their lawn chairs, blankets and tripods at various viewing areas. We stopped at maybe the furthest west. Waited. The setting sun was trying to break out of the clouds. However the clouds got thicker and thicker, soon, we couldn't even see the top of Horsetail. People started to trickle out. Saw just behind us, the setting sun was painting red on Sentinal Rock. Tomorrow, we have one last chance.

2/26, Thursday. Had breakfast on the balcony. Chilly, but sunny. Checked out shortly after 8am. Drove to Happy Isle for Mist Trail. The parking lots were completely covered with snow. The park's bus got closer to the TH. The Mist Trail that goes by Vernal Falls was closed due to icy condition. Reroute to JMT, which got to the top of Vernal Falls. On the way, it was too snowy, we put on micro-spikes. View is excellent here. You can see Vernal Falls below, and Narada Falls ahead. Walked down to the river above Vernal Falls. Found some slabs without snow, had an early lunch, ~11am. Didn't continue to Narada Falls. On our way back, started seeing more hikers. Half of them wore spikes. Back on the bridge, more people now. View of Vernal Falls from the bridge. It was sunny now.

Hurried over to Ahwahnee Hotel for the 2pm guided walk. The meadow on the way looks so lovely, we stopped to take a photo. There were about a dozen people showed up for the ranger's tour.
As always, nothing starts on time. We spent quite a few minutes over the naming right of Yosemite's hotels (they were trademarked and changed during 2016-19). Our guide works for NPS, and lives in the park for free, a perk of NPS. Ahwahnee is the brain child of Stephen Mather, the first director of NPS. Designed by Gilbert Stanley Underwood. A few interesting tidbits:
  • From start digging to guest arriving is only about a year (opened in July 1927, so it'll be it's centenial next summer).
  • The wood-looking beams are actually concrete.
  • All the timbers were shipped in (not collected from inside the park).
  • Very expensive to maintain. It just went through a 16 million restoration, but we still see water damage.
  • Earlier guest would take hotel properties home as souveniers
  • The taperstry with indeginous patters are Persian.
We left shortly after 3pm, hoping to catch another ranger led walk. However, we were too late and couldn't find the group. Inquired at the front desk Yosemite Lodge, but the employees there were useless.

Parked at the designated parking lot for the Fire Fall. Ate dinner in the car. Bundled up, and joined the ever growing number of tourists walking a mile west to see the waterfall. It's quite orderly. Not as crowded as I worried. Here's where we stopped at. The owner of this big lens on the bottom right of this photo has a 2nd camera. He sat in a lawn chair covered with a blanket. Today, the sun was shining, and at exactly the advertised time, the waterfall turned orange. Not bad. On our walk back, I realized that I lost my phone. Thankfully, found it in the snow where we were watching the spectacle.

By the time we were back in the car, it was dark enough to need headlamps. Drove out of the park following a long string of tail lights. Stopped at Tulare, ~45 min south of Fresno.

Wednesday, April 01, 2026

2026.4.1. Advanced Tech Policy Town Hall

WTIA's Arry Yu hosts many events every year. This one is by far the best, most informative.
  • WA State Department of Financial Institutions (DFI)'s Faith Anderson (Acting Director of Securities), Shannon Tushar (Program Manager Division of Banks), JJ Choi (Chief of Regulatory Affairs Division of Consumer Service). They have office hours that anyone can stop by or call for consultation.
  • WTIA's Director of Government Affairs, Amy Harris on this past short legislative session in Olympia ($M tax ...).
  • WA State Attorney General's AI Task Force lead, Yuki Ishizuka. Their most recent report is this PDF.
~180 people signed up, but less than 50 showed up. So much food. A pity. Kudo to Arry who ordered dinner from a small business in the International District. I also enjoy reading her newsletters, especially the 10 lessons she just learned recently.

Saturday, March 28, 2026

2026.3.26-28 Electric SEA

Electric Sea 2026 is hosting a so-called hackerthon at ArtLove Salon, where I took a few art classes recently. I signed up for a workshop taught by Grant Hinkson. He has prepared 6 nicely crafted wooden box, precut plexi-glass plates, PCB board designed by him and manufactured in China (shipment arrived in 4 days!). In class 1, we hooked up the wires with the controllers, and an Teensy 4.0 microcontroller (Amazon or Sparkfun). In class 2, we downloaded his code, and flashed onto the Teensy with Arduino IDE. We verfied that our connections were correct by checking the readout in our laptop using his debugger, for all the controllers: 4 rotary, 2 sliders, 2 buttons. Then we screwed the bottom plate on, jammed the USB cord through the outlet. Too bad that the plug where the USB cord goes through is too tight. I, and Daniel, fried our microcontrollers. Last, open Visual Studio, grab any example from OpenProcessing, modify it by using AI (Claude) with an example he provided.

3/28, Saturday, evening, OK and I arrived almost at 7pm. I asked her to sign up for the award ceremony. But no one checked her registration. We walked around different installations, ate sandwiches and spring rolls. Saw a group using VR glasses, one girl with her colored fabric patches of her year of pain, a group with LED lights that get brighter if one light is near another, a large screen of static kelp and sound of water (diving), a cut piramide-shaped robot, a large paper-mache with lights that turned color when you touch it, a webapp that registers user's hand gesture to ~8 emotions based on predefined questions and then plot the the questions in shiny spheres colored by aggregated emotions... The inventor (or the group of designers) stood by their products and tell you what they are about. To be honest, a lot of crap. But a great chance for people of different discipline to get together and play. Here's Grant's station showcasing what we built: 3 boxes here (total 6 students). None of these are final prototype, but a tool to use in some projects.

At 8:15pm, Elizabeth Churchill gave a talk to encourage everyone playing with AI. She's part of a planning team for an AI univesity in United Emerit. Luckily she's not there now, with the ongoing war. A good speaker. Afterwards, the organizer Third Place Technologies presented awards to the "digital kelp", and the "light together".

Daniel's microcontroller woke up last evening. Safety fuse? Grant gave me back my dead MCU. However, when I tried it later, it was still dead.

2026.3.28. Red Mountain

3/28, I failed to set up alarm clock, woke up later than planned. O.K. and I drove out shortly before 8am. She came up north because she needed to pick up her tent from her friend in Tacoma, with whom she climbed Orizaba early this January.

The road to the TH of Red Mountain was mostly covered with snow, some middle parts were melted out. We pulled off the road and parked on the snow. With the record low snow this year, I was hoping to drive all the way to TH. This is a photo of the TH, which O.K. by the sign.

Started walking the road ~9:45am. The first minute or two was on trail, but soon the trail disappeared into the snow. Snow was soft and shallow in the beginning. Not a lot of snow, but enough that we were punching holes. Put on snowshoes. From time to time we could see a faint trail where the snow had melted on steeper slopes. The slope gets fairly steep, but not terrible. There's some road zigzaging on this slope, which we crossed a couple of time, and there, it was flat and all snow. Minor bushwhacking involved.

Once we emerged from most trees, the view was pretty good (to east). Eventually, we followed a ridge. At about 5400', no more trees, somewhat steep. We put on crampons. I haven't used crampons for years. Had to adjust to fit my current boots. It gave me a chance to eat a bit of my sandwich, otherwise, I was lagging behind so much that I had no time to stop and refuel. Almost 1pm already. O.K. doesn't seem to need to eat. We also got our ice-axe out, and put on our jackets. A bit chilly when wind blew.

Finally we got on a false summit. Great view here over to the west (Alpine Lakes). Rainier is to the south shrouded in clouds.

From here, need to drop down on to the ledge that connects these peak to get to the proper Red Mountain. You can see O.K. in this photo. A bit narrow here, but not bad, except for one small rock-pile that I had to use hands.

Finally, we reached our objective. It doesn't seem any higher than the false summit. In summer, it's easy to scramble to other peaks along this ledge. There's a trail, once the snow is gone. Snapped a couple of photos, especially photos of O.K. on summit (she posts them on Facebook).

Because we had an event to go this evening, we turned around right away. The event promised dinner, so both of us were motivated to go back not too late. I glissade a little bit to catch up with O.K., and gave me a chance to finish my sandwich. My left leg was starting to cramp.

Switched to snowshoes at some point. I'm testing a newly acquired Altas Helium snowshoes. I like the fitting: easy to secure, and fit well. But getting on and off is slow, as I have to unbuckle all 3 bindings, even though each one is easy. O.K. was taking on/off her snowshoes constantly. I, after one switch, gave up, and plowed through the alder branches and down logs on snowshoes. Even with snowshoes, I managed to step through into some holes and fell twice. Miraculously, no scratches. Could have easily fallen on a pointy tree limb.

Dropped back on the road a bit south of the TH, but still north of the creek. The road was now melted more. I didn't put on spikes walking out. Saw a truck and a snowmobile as we walked back to the car. Now, a problem: the car had sunk into now melting snow, and it couldn't move. I used a snowshoe to dig out snow behind all 4 wheels. Then, O.K. would drive on reverse, and I would push. Did this a couple of rounds, and finally the back wheels got on pavement. That took ~20 mintes. Drove out ~4:45pm.

We filled the gas at Cle Elum Safeway, before driving back home. Dropped our stuff, and I picked up my badge and my Midi-box. We rushed to ArtLove Salon. Arrived ~7pm, still had most food left. Total ~6.8 miles, 3470' EG. I get to use all gear: spikes, snowshoes, crampons, ice axe, and helmet. Not all necessary, but definitely snowshoes.

Thursday, March 26, 2026

2026.3.26. Cherry Blossom at UW Quad

3/26, Thursday. Sunny. Went to UW at lunch time. Too bad, many others had the same idea. The flowers are lovely, just too many people.