Stan’s Obligatory Blog

A couple weeks ago, the Saturday Foothill group did the ride to see the Brady Bunch house. On the way there, I saw that someone had recreated the Holodeck 9 control panels in North Hollywood Park. This had happened before, back in 2020. So today’s ride was to go there and see if they had made all four panels again and how they were different.

We rode out out usual route to Burbank and then took the Chandler bike trail over to North Hollywood. We had snacks and drinks at Groundwork Coffee, and then we rode to North Hollywood Park. And four of the irrigation control boxes had new stickers on them with holodeck controls. One panel had a list of available simulations to run, which were all based on movie storylines. Another showed the bounds of the simulation, along with a warning that the simulation might be erratic outside those bounds. All in all, it was pretty entertaining.

Riding home through Toluca Lake, we heard some very loud crashing noises coming from the 134 freeway. We pulled over on a side street with an overpass, and we saw that there had just been a multi-car crash on the freeway. Yikes.

45 miles

Route map and elevation profile

Back in 2012, one of our regular Sunday bike club rides went to see the space shuttle Endeavor as it was being moved to the California Science Center. And in 2016, we rode to Exposition Park to see the external fuel tank for the shuttle, on display next to the building where the shuttle is. I recently read that they have started construction of the new Samuel Oschin Air and Space Center, where the shuttle will be on display in the full vertical ‘stack’, with two solid rocket boosters, the external tank, and the orbiter, all mounted as if ready for launch. So today, the bike club did a special ride to Exposition Park to see the two solid rockets, which were on a pair of very large trucks for transport into the museum.

30 miles.

Route map and elevation profile

This past week, I saw a little item in the news about how someone had decorated some stainless steel things in a park in North Hollywood to turn them into “Star Trek” holodeck control panels.

https://www.cnet.com/news/star-trek-fan-re-creates-holodeck-controls-in-los-angeles-public-park/

Of course, I immediately said, “I know where we’re riding this Sunday!”

The ride out there was pretty straightforward. There’s still a detour on the LA River bike path in Frogtown, but aside from that, we just cruised all the way to North Hollywood. It turned out that the guy who made the holodeck control panels made two sets of them. Both are along the walking path that runs along Tujunga Ave. One is just south of Magnolia, and the other is about a half-block south from there. We all agreed that the simulation of a Los Angeles city park, circa early-21st-century was very realistic. The only thing wrong was the coronavirus pandemic, but we couldn’t find the power switch to turn it off and back on.

We stopped for drinks at Groundwork Coffee in NoHo, and then headed home. The route home went up and over the Linda Vista hill, which felt much harder today for some reason. But no matter. We made it back just fine.

47 miles

Route map and elevation profile

This whole retirement thing is still very novel. It means that I can go on weekday bike rides, and being on lockdown at home means I have time to watch a lot of TV and movies. Lately, I found a new PBS show called “Lost L.A.”. One of the episodes is called “Discovering the Universe”, about how the Mt Wilson observatory was the site of one of the single greatest astronomical discoveries. So while I was out riding with Carla today, we decided to go by and see the Carnegie building in Pasadena where they have the archive of the glass photo plates where Edwin Hubble figured out that the universe was far, far larger than the Milky Way galaxy. It was this bit of history that was why I was willing to fork over a fair amount of money to Atlas Obscura for a chance to go look through the 100-inch telescope.

30 miles.

Route map and elevation profile

Today was the latest version of the San Andreas Fault tour with Atlas Obscura. This is about the fifth time we’ve done this tour, which is based on Sue Hough’s book, Finding Fault in California: An Earthquake Tourist’s Guide. Back in 2014, Sue took our office on a tour based on her book, and I knew immediately that this tour would be a hit with the Atlas Obscura crowd.

The first stop was the McDonald’s in San Fernando, which has a nice little fault scarp between the drive-through and the parking lot. This is a remnant from the 1971 San Fernando Earthquake. After that, we headed up the 14 Freeway, passing over the famous interchange that fell down in 1971, and then again in 1994, and then on to the Antelope Valley. We stopped at the scenic overlook by Lake Palmdale, and then took a short walk up the hill to see the famous road cut where the freeway cuts through a hill that was pushed up by motion on the fault.

WE stopped for lunch at Charlie Brown Farms in Littlerock, and then we went on to Pearblossom. We stopped for a photo-op at the signs marking where the fault crosses the road. There was a pair of signs there that someone installed decades ago, but those signs were vandalized some time in the last year or so. So Morgan and I had made a new pair of signs, which we took a field trip to go and install back in May. The new signs are still there, and still look nice and clean and new. After that, we went just a short distance down the road to go see the Pallett Creek trench site, which was the birthplace of the relatively new science of paleoseismology.

Heading up into the mountains, we stopped to dig a bit in some fault gouge in a road cut near Big Pines. Then we went through Wrightwood, and on down into Cajon Pass. That was the final stop, at Lost Lake, which is a small sag pond. It’s a pretty unlikely place for a lake, which is the charm of it. After that, we headed back to Pasadena.

This Saturday was the fourth time I’ve been part of leading the San Andreas Fault tour with Atlas Obscura. The last time I did this was in October of last year, and my partner that time was Morgan from the USGS office. But this time, she was offered a chance to go to a conference in Japan, so Nicholas was my partner for the tour. We also had a special guest along this time. Back in April, Kathleen and I had gone on the Nastie Nellie Oleson Tour with Alison Arngrim in Hollywood. This was tremendously entertaining, and along the way, I told Alison about the earthquake tour. She was interested, but the tour was already sold out. But it turned out that Sandi had held one seat in reserve in case Nicholas or I wanted to bring a guest, so Alison got the guest seat for the tour.

After a quick tour of the Seismo Lab, we headed up to the fault scarp at the McDonald’s in San Fernando. I also went inside to get some iced tea and to use the bathroom. That was where I saw what I can only assume is an unfortunate typo on the soap dispenser.

In Palmdale, we took in the view from the overlook by the freeway, and then climbed up the little hill so we could look down into the famous road cut where the 14 freeway crosses the fault. Then it was time for our lunch stop at Charlie Brown Farms. After that, it was time for Pallett Creek. We knew that the mysterious signs that marked where the fault crosses the road had been recently vandalized after more than a decade of marking the spot. So I’d made a new sign, which we brought along to use for the photo-op, even if it’s not properly planted in the ground. Then we traveled the quarter-mile or so to the actual trench site next to Pallett Creek. It’s not much to see, but it’s a chance to talk about how Kerry Sieh invented the science of paleoseismology there, back in the 1970s.

Heading up into the mountains, we stopped at the road cut near Big Pines to dig in the fault gouge. Then a quick bathroom stop in Wrightwood before heading down the other side of the mountain into Cajon Pass. There, we got to see Lost Lake, a small sag pond on the fault there. I like Lost Lake just because it looks like such an improbable thing. A pond all by itself, surrounded by desert. We also were very lucky this time. To get to the lake, we have to cross four railroad tracks. On the way in, we saw a train that had just finished passing the crossing when we got there. And while we were at Lost Lake, I saw another train come by. But that one finished passing by just as we were leaving. Cajon Pass is one of the toughest stretches of railroad in the U.S., and the trains there tend to be very long, and very slow-moving, so we were lucky to have missed both of them this time.

Today was the ME72 robot contest at Caltech. I’ve been going to see these things for over 20 years, and it’s always entertaining. The theme this year was “Tank Wars”. Each team had to build three tanks, and the tanks had to fight for control of three bases on the playing field. Each base had two buttons on it, and to take control of a base, one team’s machine had to push the button corresponding to the color of that team. One base was on the ground in the middle of the playing field. One of on a see-saw, and the third one was on top of a platform with ramps leading up to it from both sides. The ground base was worth one point for each second of control. The see-saw was worth 1.375, and the platform base was worth 1.75 points per second. As a result, most of the time, machines from both teams would go up to the platform, and a lot of times they ended up just alternating control of it for the duration of the match. So the point advantage of the platform wasn’t that much of a factor in most matches.

One funny thing was that they had a fire extinguisher handy by the playing field. This was because of the incident two years ago when one of the machines caught fire in the middle of a match.

The first match was won by the Riveters team. They had a clever strategy. In each match, they had one machine go and take control of the see-saw base. Then the machine would drive to the center of the see-saw and balance there, so no other team’s machine could even get on the see-saw. This worked well for them, and in the end, the Riveters were the only undefeated team of the day. And that included the final. Very well-done. They deserve both ears and the tail.

My old friend Bruce is an AP math teacher at a school in Palm Springs, and he brought his Math Lab group into the city today for a field trip. So I met up with them to take them on a quick tour of the Seismo Lab at Caltech. We started out with lunch on Lake Ave, and then headed over to Caltech. I told them a bit about the history of the lab, and some stories about what it’s like there. On the way in to the building, we passed Mike Brown’s office, and I pointed out that he was the guy who got Pluto de-listed as a planet. There’s a certain nerd-cachet to that. And afterward, we all walked around the campus for a bit just so they could see it. The majority of them are seniors now, and will be heading off to college in the fall.

Today was the annual ME72 Engineering Contest at Caltech. I try and go see it whenever I can. It’s generally very entertaining.

The basic premise is that teams of students have to build a machine or machines to engage in a contest. With advances in technology, the contests have become more elaborate. And in recent years, they’ve even added a requirement that the machines operate autonomously for the first 40 seconds of each contest.

This year’s contest was to build three machines to navigate an obstacle course and deliver a baseball into a hole at the far end of the course. The first machine had to drive through a field of concrete-filled pylons, and then transfer the ball to the second machine. The teams got extra points if their machine could make its way through the pylons autonomously. The second machine had to drive up and over a teeter-totter, and then up a 30-degree slope, across the flat top of the platform, and then transfer the ball to the third machine that was waiting on the other side. The third machine then had to open a small gate and carry the ball to the goal.

It turned out that this set of tasks was quite difficult, and in the first round, only the V15TA team was able to get all the way to the goal. In the end they made it to the goal in several matches, and only Team Soul was able to make it all the way even once. Based on that, we all figured it was going to be V15TA in the end, and that’s what happened. In the final match, their machines performed a flawless run from start to finish. It was pretty impressive.

I first met my friend Gordon at our first job out of college, back in 1982. We were at McDonnell-Douglas in the department that dealt with modeling nuclear weapons effects. So we read and thought about nuclear weapons quite a bit in those days, and we both thought that it would be interesting to get a chance to see an actual nuclear test. Since above-ground testing ended in 1962, and even underground testing ended in 1992, it’s just not possible. But going to see the place where they did the tests back in the 1950s was the next best thing.

The tours of the test site are given once a month, and they fill up fast. I signed us up for this tour last July. And Tuesday morning, we headed over to the Atomic Testing Museum for the tour.

There were about 45 people on the tour. We all got on the bus for the long ride out of town to the test site. On the way there, we passed by Creech Air Force Base, where we saw a drone flying around and practicing touch-and-go landings. A little bit farther out, we finally got off the main road and entered the test site. The streets in that part of the base were all named for nuclear test series’ from the 1950s. Tumbler, Snapper, Ranger, et al. We had a snack stop there, and then we got back on the bus to head out to Yucca Valley.

On the way to Yucca Valley, our guide pointed out some old wooden benches next to the road. He said these were the benches that spectators sat on to watch the early tests at Frenchman Flat.

We rode the bus all the way through that valley and over a small pass to get to Yucca Flat. There, they took us to see the site of the last prepared underground test. It was put together and ready to go in 1992 when all nuclear testing was stopped. So we got to go inside the tower and see the test rig, complete with a small dummy warhead at the bottom and all the instruments to record the explosion mounted above it. The whole thing was suspended over the hole, ready to be lowered down for the test.

Continuing on in the bus, we stopped for our one photo-op of the tour. The guide had a camera, and he took a group picture of us on the observation platform at the edge of the crater left by the Sedan test in 1962. This test was supposed to be a demonstration of ‘nuclear earthmoving’, and there was actually a proposal to use this to dig a harbor in Alaska, and even talk of using nuclear bombs to dig a giant roadcut for Interstate 40 in California.

Getting back on the bus, we headed back toward Frenchman Flat, with a short side trip to see one of the houses that was built for the Apple 2 test in 1955.

We stopped for lunch at the cafeteria at the test site. In the hallway there, there were large photographs of some of the tests.

After lunch, we got back on the bus to go to Frenchman Flat. We saw the nuclear waste dump site there. And then we went to see the remains of the buildings and other structures built for the 1957 Priscilla test. The railroad bridge with the bent steel girders was particularly impressive.

That was the end of the tour, and the bus headed back to Las Vegas. As always, one must exit through the gift shop, so we got to go to the Atomic Testing Museum’s gift shop at the end. It was an interesting and entertaining day.