Winter Skiing in the Spring

Winter Skiing in the Spring

Two days of skiing at Tahoe are in the bag, but what a difference between the two days. Yesterday we got the true spring skiing experience. It was cool and crusty in the morning and a bit slushy in the afternoon. Its been a pretty bad winter here in Tahoe so a lot of the runs were not accessible. In the morning we went up the Stagecoach express and turned left, to try the Stagecoach run. It was the worst skiing I have ever experienced in my life. Thankfully, we learned the trick. Stay on the groomed runs! Once we figured that out the day was a blast, if a bit repetitive. One thing you can’t beat is the views. Bright sunny day, clear blue sky, good friends to ski with. What could be better?

I also love this photo for all of the layers. High clouds, low clouds, shadows of clouds on the brown/green valley floor below.

Overnight, the winds kicked in, and the snow came down. Up to eight inches in the higher elevations. This made for a second day of mid-winter like skiing. Suddenly, all the runs that were not good yesterday were very ski-able with a fresh layer of snow. The only downside was that the winds and snow continued. We were told in the morning that all the lifts might have to shut down, at some point because thunder (and lightning) were in the forecast for the day. I’ve never thought about being up on a ski lift in a thunderstorm before but I’m pretty sure I wouldn’t want to be there.

In any case, if they do shut down certain of the lifts, then you are in trouble anyway...

Lake Tahoe

Lake Tahoe

A Rare Day

Lake Tahoe is beautiful. We arrived last night from Napa and got to our VRBO home, it is great and we had a beautiful view of the lake out our windows. The sun was just going down and I captured this picture of the Sequoia outside our window.

<a href="http://flic.kr/p/mouxs6" title="Camera Roll-482 by -bnmnetp-"><img src="http://farm3.staticflickr.com/2840/13381667205_c6d0cc90bf_z.jpg" width="478" height="640" alt="Camera Roll-482"></a>

Today we drove the east side of the lake and met Jim and Karen for lunch, then we went to Emerald bay in the afternoon after Pete and Kim joined us. Its really hard to describe or write too much about this, so I will just add a few photos here.

the word of the day is malolactic

Brought to You by the Letter ‘C’

I must confess, after all of the Chardonnay I’ve consumed, and I have consumed my share over the years, I have never really got the “buttery oaky Chardonnay” thing. Butter is just not something I’ve ever tasted in my Chardonnay, despite the fact that one of my all time favorites is Rombaur, which according to more than one person in Napa, is the “poster child” for buttery oaky Chardonnays. Really, who wants their Chardonnay to taste like butter? The whole describing wine thing is another thing I find really interesting. One of the tasting room hosts, recommended the movie Somm to us as we were chatting. I see you can get/rent it on iTunes, so I’m adding that to my list. Its about a group of guys preparing for the master sommelier exam, which may sound a bit dull, but the reviews for it are fantastic.

But after two days of tastings in Napa its all clear to me now. The key that helped me understand the difference, and I’m confident I’m now an expert, is Malolactic Fermentation. The science of it all, unsurprisingly, has stuck in my brain. Here’s a quick summary of more than you ever probably wanted to know.

Malolactic Fermentation is the process of converting Malic Acid (which tastes tart,and citrussy to my mouth) to Lactic Acid which is a much more mellow flavor. Malolactic fermentation occurs after fermentation and is the result of injecting a particular bacteria into the process.

William Hill

Now, to each his own, but I can say that I am a fan of Malolactic Fermentation. Here are some of my favorites:

  • Rombaur

  • William Hill

  • Carpe Deim

  • Poseidon’s Vineyard

Conquering the Tannins

I’ve never been able to drink red wine much due to my allergies. What am I allergic to in red wine? Tannin is a chemical that comes from the skins, seeds, and stems of the wine. They are much more prevalent in red wine than in white. Now according to our host at Chateau Montelena (see also the movie Bottle Shock) I need to develop a resistance to Tannins in order to drink red wine. The way to do this, according to this would be allergist, is to begin with Pinot Noir, and work my way up from there. Well it sounds like a project, and I do enjoy a nice glass of Pinot. So, something to work on. All in the name of self improvement of course.

My Photo Stream-978

easy publishing with runestone interactive

During my January travels, I also converted this blog from tubmlr, which had been frustrating me for a while, to Octopress, with which I have been very happy. Nothing like hacker level control of your own blog. But more, than just the switch in tools, the move to Octopress inspired me to make it easier for people to publish small or large works using the Runestone tools.

Yesterday, at the Learning @ Scale conference we demoed this new capability. See [the demo here](<http://runestoneinteractive.org/LearningAtScale). To make it super easy to publish:

  • Lecture slides

  • Demonstrations

  • A Tutorial

  • Lab Instructions

  • In class exercises

  • A short module on your favorite topic not covered elsewhere

  • An entire book

Building

You can simply follow the instructions at this new repository: github.com/RunestoneInteractive/RunestoneTools. In a nutshell:

  1. Install Sphinx, paver, and paverutils using pip.

  2. Clone the repository

  3. Edit the index.rst file in source, and add any additional rst files you may want, depending on how complex your project is.

  4. run paver build

Deploying

Now you have a choice. In the build directory you have a nice self contained set of html files, these files are set up to make use of the runestone server invisibly in the background. The static html can be served from any web server. Just drop in the build directory and you are ready to serve. OR, you can now host and deploy your project using GitHub Pages. To host on github pages you need to do three things.

  1. Create an empty repository in your github account.

  2. run paver setup_github_pages and paste in the URL of the new account.

  3. run paver deploy

Now your pages will be available at: http://youraccount.github.io/YourRepo

If you want to host these pages behind a custom domain name, you can follow the instructions on github for doing so. Hint: Its really easy.

I hope this new capability will inspire lots of people to give these tools a try. I also hope that we can build a repository of resources built with the tools, so that we can all share our teaching ideas. Stay tuned for more on that.

Caveats

All of the features, activecode, codelens, assessment questions, parson’s problems, and more work just fine. The major thing that will not work (yet!) is the login/logout. I need to rework our authentication system in order for this to work. This will for sure need to happen before the end of summer.

reflections on january 2014

I left home on December 27 2013. When I left I had 3 bags packed. One for our trip to Mazatlan to celebrate the new year with our friends the Vermace’s. One for my January term class on the west coast, and finally a bag full of ski gear for the rest and relaxation trip to Breckenridge. Since leaving home I have travelled a bit over 10,000 miles. My means of travel has included several flights, two long train trips on Amtrak, some time in a car, and lots of time on public transportation.

In the last 35 days I’ve had more experiences than many people would have in a lifetime. I say this out of a sense of gratitude, and to remind myself how lucky I am.

  • I’ve body surfed in the Pacific Ocean on the beach in front of our rented house in Mazatlan called the Sand Castle. Calling the Sand Castle a house is a bit of an understatement.

  • I’ve been deep sea fishing, and reeled in a large Dorado (Mahi Mahi), which was cleaned dockside, and prepared on the grill at the Sand Castle just hours later.

  • I’ve toasted the New Year watching fireworks over the beach from the fourth floor of the Sand Castle.

  • I’ve gotten to know a group of 11 Luther Students well, and watched as they talked with and learned from some of the most successful entrepreneurs in the country.

  • I’ve had four days in Seattle to visit Pike Place Market, eat seafood, visit Pioneer Square. During the same period we visited Amazon, Microsoft, VMWare, and Percognate.

  • The Amtrak from Seattle to San Francisco promised spectacular views and a comfortable ride. While the ride was comfortable, if I did it again, I would definitely spring for sleeper cars for the group.

  • I’ve had four days on Fisherman’s Wharf, led a bike ride across the Golden Gate Bridge, and beyond Suasalito. While in San Francisco we visited Strava, Pinterest, Moovweb, Bizo, Sqwiggle, Schwartz MSL, and Hummer Winblad.

  • I’ve had four days in Menlo Park, including a 32 mile bike ride up Old La Honda road and along Skyline drive. I introduced the group to turkish food at Sultana restaurant. While in Menlo Park we spent a day at Google, a morning at SportVision, and learned about patent law at Fenwick West.

  • The train ride from San Jose to Los Angeles lived up to its billing. The views were spectacular, and we got to see an amazing sunset over the Pacific.

  • To cap off our trip we stayed in a house called Beethoven’s Trio in Santa Monica. Rather than eating out we were able to use the grill and the kitchen and prepare our own communal meals. It was fun to watch the students cook (and clean up) and eat in a very casual setting.

  • We got to spend the weekend exploring Venice Beach and anything else in the LA area. Sunday morning I met a group of Chelsea fans at a local British pub. A fun way to get my soccer fix for the week.

  • While in Santa Monica we visited with Capsule, Coloft, and Fullscreen. At Fullscreen we were hosted by three Luther alumni two of whom took the Entrepreneurship course and did the journey three four years ago. It is so gratifying to see your students succeed.

  • Finally I’ve been able to spend six days “recuperating” in Breckenridge. Some might say that five days of skiing is hardly recuperating, and I would agree. However, we have had 30+ inches of fresh snow in the last three days, and the locals say this is one of the greatest storms ever. So to say that the skiing has been fantastic is a bit of an understatement.

After all of this, perhaps the best thing is that I get to go home tomorrow.

on 14 inches of powder

The weather report said we had 6 inches of snow overnight. From the moment we walked out the door it was clear that they had underestimated the snowfall by about 8 inches.

Powder

We were on the third chair up at 8:30 this morning. The steep parts of the hill were awesome, with powder over my knees, floating through the snow. On the gentle parts of the hill we all formed a single file line in order to get through it all.

By mid-day it was work. The powder had been packed in many places and it was work to get through it. The snow continued heavily throughout the day, and we are supposed to get another 14 inches overnight.

This has been the perfect few days of rest and relaxation to finish off January term. Its even better because we bought the Epic local passes this year, which means we don’t feel like we have to ski full time, but can actually just ski until we are ready to take a break, and then ski again later. Its been great.

final visits

My daughter Kaia is getting married next summer. This is not new news, the proposal was made an accepted last June. But planning is in full swing now, and I was kind of excited when secured a visit with Capsule, because capsule provides a service where all the guests at your wedding can download the capsule app and it will automatically upload all the photos to a special page for the wedding.

This company was founded by Cyrus, who set out to solve a simple problem, a problem we’ve been coping with on this course as well. When you travel, how do you share all your digital photos with the buddies you are traveling with. When you have a big party? When you have a wedding, bachelor party, bachelorette party? Capsule has solved this in a nice, elegant way. All the photos uploaded for a particular event, are shared with the participants in the event. Its that easy. No need to bore all of your Facebook followers with every photo from your trip. If you’re an Instagram user, its super easy to add a special hashtag to your photo and it will be automatically imported into Capsule as well as shared on Instagram.

What was incredibly interesting for me was to listen to Cyrus talk about business models, and monetizing the service. Cyrus is not a CS guy, he’s a business guy. Of course as an entrepreneur he can talk the tech talk but his home is on the business side. Here’s an example of how differently we tech people approach a problem than the business guys.

Problem: Each event needs to have a unique id, that can be given to the participants to use to join the event, and/or tag their Instagram photos.

Tech Solution: Ha, this is easy, we’ll just allow people to pick a unique identifier, lets say #TannerAndKaia No problem, this is easy just give them a text entry box, and a quick database lookup to make sure the hashtag hasn’t already been taken. No big deal, even an intern could code this up.

Business Guy Solution: Ok, just generate a random hashtag #JK286TJ. Now if the bride and the groom want to have a nice hashtag for their wedding, we can sell them that as a strategy to monetize the service.

Brilliant! We tech guys get so focused on the solution most of the time that we never stop to think about simple strategies to monetize.

Our second visit of the day was to Fullscreen. This is a Culver City company that employs three Luther Alumni! Two of which I am very proud to say are also alumni of this very course. Drew is employee number 3 of Fullscreen, and Aaron is number 15, Jacob is not far after Aaron. Fullscreen now numbers over 220 employees, and is a very fast growing new media company.

What do they do? What do you mean new media company? Well, this is where my age really starts to show. Apparently there are people in this world that spend a lot of time watching “shows” on youTube. Shows like that Marbles girl, or teenagegirl14, and thousands of others. As Aaron said, this is not your demographic Brad, this is targeted at a group of people that will probably never pay a cable bill. So Fullscreen is a Network in the sense that they aggregate all kinds of these new generation entertainers, and help them monetize their videos on youtube. Note that monetize is a euphemism for ad serving, but thats really only a small part of what Fullscreen is about. Its a great company and Drew, Aaron, and Jacob were excellent hosts. They even talked their CEO into spending about an hour with us answering questions.

Another interesting story around Fullscreen is that Drew and George (CEO of Fullscreen) met at Coloft Santa Monica. We were also lucky enough to meet with the founder of Coloft, Avesta, (@avestar). He gave the students a great no-nonsense talk on his views of entrepreneurship. The story of Drew meeting George is a great example of the synergies that can happen in a co-working facility. At the time, Drew and a partner were trying to start a little consulting company to do coding for hire. Avesta happened to be talking to George who was looking for someone with Drew’s skill set. So he introduced the two of them, and a successful company was launched.

I love this story on a couple of different levels. First, as a professor I take pride in the success and accomplishments of my students even after they leave the campus. As an alum and faculty member of a college that counts community as one of its defining characteristics, it is great to find other organizations that lift up community as a differentiator.

applied math and physics

You know those yellow lines on the football field? They are harder to draw than they look. Think for a minute about all of the different field conditions. Natural green turf, artificial turf, mud, snow, cold brown grass. Now think about all of the different colored uniforms the players wear. Now, look closely. The line never covers up any part of a player, or the ball. Notice that? The ball doesn’t have a yellow strip, the ball blocks out the yellow line. The same with players shoes. Today we got to learn about the yellow lines, the blue lines, the down and distance information, and many more cool effects that Sportvision puts on our television screens.

SportVision

Here’s the group on the “practice Field” They were moving the blue and the yellow line for us as we stood there. You can kind of see them on the big screen on the wall. The rack of equipment behind me is what they need to bring to each game, and the computers on the desk are whats used by the operator during the game. The operator can adjust all sorts of parameters based on field conditions and uniform colors etc. In addition, in the case of a really bad snow storm, they can also project all the yard markers on top of the snow so the people at home have a better view of the field than the players.

In addition to football, Sportvision is also a big provider of on screen information for NASCAR and Major League Baseball. In the case of NASCAR they display a box of statistics right above the car as it goes around the track. For Major League Baseball, they show the ball and strike zone, and a bunch of statistics about pitch placement. They also collect statistics about every player on the diamond. They track the ball and the players using an array of cameras placed around the ballpark. Here’s where the cool math and physics comes in. Based on the flight of the ball, they compute the spin! The cameras are not good enough yet to track the laces, but with some math, they can provide a visualization of how the ball is spinning! Very cool.

Sportvision is looking at lots of sports, and looking at newer ways to get more information about every player. For example Football players may have special chips embedded in their shoulder pads someday in the future. NASCAR cars already have a special box in them that tracks all kinds of information for Sportvision, Soccer players are not likely to have any special chips as it would likely inhibit their play, unless something could be put in their shoes.

SportVision

Like most of the companies we have met with Big Data is an important part of Sportvision’s future plans. Right now their main customers are the television networks, but in the future individual teams will pay for data. One interesting aspect of the big data strategy for Sportvision is that they don’t have to productize the analytics part of it. The reason is because most teams just want the data, and they consider the analytics to be a competitive advantage. This doesn’t mean that Sportvision won’t productize some analysis software, because there is a market at the college level and below where teams can’t afford to pay for their own data scientists.

transportation cogitation

This is a post I’ve been thinking about for a few days. Its a serious post, but especially after today, its surrounded in humor. Here’s the problem, to me this is funny, but if you had to live with it every day of your life, it might not be funny.

My thinking about this goes all the way back to the first day of JTerm, when we walked, and walked, and walked… through miles of parking garage to get to the light rail that would take us downtown. When we arrived downtown, most of us could easily take the escalator conveniently up to street level. Where we hunted around for the elevator for the rest of the group. It turns out the elevator is never in a location that is convenient or close to the escalators.

The next day, I led the group into a coffee shop (not a Starbucks) that our host had recommended. I popped in, looked around, and quickly realized that we couldn’t stay, not only couldn’t we stay we couldn’t all get in the coffee shop. Stairs only, no ramp.

On the positive side, the Seattle bus drivers were all extremely knowledgeable and courteous. They were able to quickly help get everyone on the bus, and locked into place for a safe ride, without one word of complaint.

The train ride from Seattle to San Francisco was 23 hours. It was uncomfortable for most of us, especially when trying to sleep, but it had to be sheer torture for someone who couldn’t get out of their chair for the entire time. Things started to get humorous when we got on the bus outside the Amtrak station. It was like the driver had no idea how to operate the wheelchair lift! Hey lets just press some of these buttons and see what happens. Never mind, the picture diagram of what to do that was posted right there.

When we needed to use the super shuttle to go from San Francisco to Menlo Park, things got a lot worse. First, the super shuttle has yet to be on time. Second, even though we ordered an accessible van, the drivers once again clearly had no idea how to make it work. Luckily by this time our own guys had figured out the general principles of a lift and were able to quickly give useful advice. The real shocker was our bus from First Student. All jokes about being on the short bus aside, it blew me away that the driver showed up with a non-functional lift. He said the battery was dead, but that didn’t stop him from randomly pressing buttons while our crew figured out how to operate the lift manually.

Lift Operator

Its been an interesting process of learning and discovery on our travels, learning to look for ramps and elevators. Learning to avoid crappy rocky roads whenever possible, and generally feeling a small part of the pain of a comrade that has to put up with this stuff every day.

the social implications of a self-driving car

Today we moved south, from Fisherman’s wharf down to Menlo Park. But most of the day was spent at Google. This was certainly a day that everyone has been looking forward to for most of the trip.

My interest in Google+ was renewed by a great tech talk by Ed Chi. Who said some very nice things about me in front of my students. They probably think I paid him. We heard about supporting an organization as large as Google from Luther Alum Charles Banta, and about i18n – i(nternationalizatio)n from Luther Alum and former CS faculty member Craig Cornelius. Yes there are 18 letters between the parenthesis! We had a fabulous tour of campus, a stop in the 3D printer lab, time at the gift shop, and of course, lunch at Charlie’s Cafe.

You have probably heard about Google’s famous slides, but they also have fire poles for people that want to quickly get down a floor. And, in case you don’t want to walk between buildings they have these cool Google Bikes all over the place. Guests are encouraged not to ride the bikes, but nobody said anything about posing with one for your picture.

Google Bike

The other talk we heard was from Brian, a member of the self driving car project, who gave us a quick overview of the Google X Chauffeur Project. The technology is interesting, and I have to admit I hadn’t really thought past the cool sensors, and modeling that would be required. But, what is even more interesting are the many social implications of self driving cars.

Brian pointed out a couple of interesting facts for us to consider. Most people dedicate more space in their homes to their car or cars than they do to their own children’s living space. He also asked us to think about all the cars in the parking lot outside the office we were in. What fraction of the time are those cars in use? Are they parked 90% of the time?

What if our self driving cars could take the kids to school in the morning, and then return a while later to bring us to work? What if we could just bring up our smart phone and request a self driving car to pick us up at work and drop us off at home. We might not need such large garages. Could we turn much of our driveway space into gardens? Would this mean the end of rush hour? Probably not, but if the car was self driving, could a self driving car pick up you and a couple of friends on a logical path to work and drop you off? On the freeways would traffic flow more fluidly if the cars could talk to each other and the automated sensor systems were good enough to ensure a nice safe drive with cars spaced out 10 feet apart? A self driving car has no need to slow down and gawk if there is an accident.

lexus

Would we collectively own fewer vehicles if our car could be called to pick us up with the touch of a button on our smart phone, or automatically scheduled to pick us up based on our daily calendar?

The big car companies will say that self driving cars are 30 years in the future. The researchers at Google feel like we are more like 5-10 years from reality. Who is better situated to make that call? The companies with the navigational, and sensor technology, with access to smart phone interfaces and calendars? In short a company like Google? Personally, I’m rooting for Google on this one, and can’t wait to buy into my first self driving car collective.