Spare Tire

May 24th, 2009 by Potato

A question for the group: have you ever had to change a tire?

During the crazy North York construction boom I seemed to get a nail in my tire every other time I visited my parents, but those were all repaired fairly quickly without a blowout, and I could still drive (short distances) on them with only a slow leak. Only once, over ten years ago, did we have to try to cram a tire inside the fully-loaded van, and it was actually the spare (it was mounted to the underside of the van, and the cable holding it in snapped after going over a gorge in the road so large it can only be described as scenic).

While a flat tire is a relatively common cause of side-of-the-road breakdowns in cars, and also relatively easy to fix yourself and continue on your way, it is a rare event (since side-of-the-road breakdowns are uncommon, so even the most common version of that is still rare), and seems to be an increasingly rare event (perhaps a combination of better tires and better roads). Since gas hit $1/L last year, more people seem to run out of gas trying to avoid fillups than are sidelined by flats. Having a spare though is a nice safety blanket, especially when travelling far out of the city where you might be faced with a several-hour-long wait for a tow truck to arrive, or worse yet, no cell phone reception. Even then, many people still wouldn’t change their own tire (and here I’ll stereotype and say that this group would largely consist of women and the elderly). For most of our driving though, we’re hauling around something like 50 lbs of tire and tools for an event that is very likely not to happen in the car’s lifetime. That’s an extra small suitcase worth of space one could use in the trunk (and believe me, Wayfare would find a way to use that space).

A more useful emergency gizmo that maybe should come with all cars, and that I have had to use a few times before, is the eliminator jump kit (with a 110-V AC inverter for extra convenience) — though just regular jumper cables should suffice for most cars. Rather than a road hazard, pure forgetfulness with the lights (or a door left open after some stupid thief broke in) can drain the battery. Of course, a dead battery isn’t going to stop you in the middle of nowhere unless you’ve stopped by the side of the road and made the mistake of turning your car off.

Spread across everyone, some measurable benefits in terms of fuel consumption could be had from ditching the spares (both from the weight reduction and the extra attention we’d pay to our regular tires without that safety net), but on an individual level I doubt you’d ever be able to notice the marginal change in your own car’s consumption (the extra cargo space would be a more likely benefit). Compact spares have been the norm for some time now, and a few models have tried to ditch them entirely (in favour of a can of fix-a-flat, a pump, and a 1-800 number) — the automotive press tends to frown on this move, though I doubt most owners would notice the lack.

Personally, I’m tempted to take the spare out now, and only put it back in for trips to cottage country. I could then put the eliminator and washer fluid in the void left by the spare, saving me from having that rolling all around. Of course, then I have to put a tire somewhere in the house and remember to replace it when I might be more likely to need it, which sounds like too much of a pain to bother.

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Wolfram|Alpha

May 19th, 2009 by Potato

Stephen Wolfram is a smart, smart guy, earning a PhD in particle physics by age 20 and writing the popular Mathematica computational engine. Personally, I have more experience with MATlab and Maple, but there were many lonely nights doing physics problem sets when I’d sneak over to the Integrator to help me solve an integral (I’m terrible at integrals — I think it’s why I ended up in the “softer” side of physics/biophysics).

Seven years ago he came out with a book, A New Kind of Science (abbreviated NKS). It was a big, big book. I started reading it, but the first few sections were on cellular automata and chaos theory, stuff I had already done a bit of work on in my undergrad. From the tone of the narration, it seemed like he was making a big huge deal over something that I had worked with a fair bit on my own in undergrad, and moreover had already made its way into the popular media, and I got turned off. I’m a little ashamed to say I never even tried to pick the book up again, but in the process of getting the PDF version (which I’ve since lost), I signed up for his NKS mailing list.

Then a few days ago I got an email announcing the launch of Wolfram|Alpha. The email was lengthy, but aside from talking about vast possibilities and universal computing, I didn’t see exactly what this “killer app” of NKS did. I pretty much ignored it due to the grandiose, hyperbolic tone:

If one looks at Wolfram|Alpha today, much of what it computes is
firmly based on OKS (the “Old Kind of Science”), and in this
sense Wolfram|Alpha can be viewed as a shining example of what
can be achieved with pre-NKS mathematical science.

“Old Kind of Science”?!

…Anyway, as it turns out Alpha is a bit like Google, in that you type in a question and get answers. Unlike Google it’s not a search engine — instead of directing you to pages where you might get an answer, it tries to answer the question for you directly. So if you want to say, find out the interest you would pay on a mortgage, you could just ask it.

Unfortunately it’s still a little shaky on that front. I tried “mortgage interest paid principal=$300000 interest=3% 25 year amortization” and it wouldn’t go, but just “25 year amortization” brought up the calculator. You can also try other queries like “Canada oil exports” to see the 2005 figure, or “moon phase” to see the phase of today’s moon. So far none of that really impressed me much — I doubt it would make me visit Wolfram|Alpha ahead of Google or Wikipedia. “Next solar eclipse” was neat though, not only showing the date of the next eclipse, but also a little picture of the places on earth it would be visible from (the path of the eclipse). “Next total solar eclipse Canada” tells me that we’ll have to wait until April 8, 2024 until the next total solar eclipse comes through Canada. Clicking on the boxes gets you “copyable plaintext” which is kind of neat, but an extra step from just having copyable text to begin with.

So hey, give it a whirl, but to an end user who doesn’t care enough to get blown away by the computational algorithms underlying it I’d hesitate to call it the killer app of a new kind of science.

Star Trek Movie Review

May 11th, 2009 by Potato

The new Star Trek movie was quite enjoyable to watch. The biggest standout I would have to say is Bones, whoever it is that’s playing him was just fantastic, but pretty much every new casting for the original cast was well done (I’m not 100% sure of John Cho as Sulu, but I’ll give him another movie to prove me wrong :). It is a reboot, with a new look and feel, but it didn’t seem like it disrespected the long history of Trek. Definitely worth catching, and didn’t feel like just another TV two-parter writ large. But now for the nitpicks:

Spoiler Warning!

I liked the gimbal-mounted phasor setup on the USS Kelvin, but I half-expected it to evolve to the arbitrary disk phasor thingamajig when we got to the Enterprise two decades later. The fight scene over Vulcan, dodging debris, was quite good, adding the dynamic element that’s typically missing from Star Trek battles. I liked the silence in some of the space scenes. Beyond that though, the science was soft-to-nonexistant.

It is Star Trek, so there will always be a few head-scratchers in the physics/self-consistency department, and one that really got me scratching my head was the whole red matter thing. Ok, we take it as a given that there’s this stuff that can explode and cause a black hole (and further give them that for whatever reason you need to drill to a planet’s core to destroy it with a black hole, rather than just spawning one on the surface) which could in turn absorb the supernova threatening Romulus*… but why if only a tiny drop is needed/used at a time, was Spock running around with this huge sphere of the stuff? I also accepted that these freshly-graduated cadets would get valuable positions on the Enterprise since it didn’t have full crew strength… but as much as we know that Pike sees potential in Kirk, I still can’t quite see why he would have made him 1st officer on his first flight out.

* – and in my mind it’s got to be a goof that something as everyday in the Trek universe as a supernova could threaten the whole galaxy, so I’ve already ret-conned that to “threatened Romulus” in my mind — after all, if the Romulan empire was threatened with extinction, that in turn would threaten the galaxy since they would probably go on some kind of homicidal expansion effort…

Wayfare pointed out a few other ones, like why if they called to be beamed out seconds later, why Kirk had to untie Pike at all? Or the big one at the end, why bother sticking around risking the ship on the edge of a forming black hole to fire a few (probably ineffective) shots at a ship that was already being consumed by said black hole? Sure, one can make the argument that it’s to prevent the Romulans from skipping around the edge and travelling through time again, and when they did pause to fire at them I really expected the movie to end with the Enterprise turning towards the black hole and warping through time and space by skimming the edge…

Anyhow, for me the weakest element would have to be the villans. I just didn’t think Nero was fleshed out all that well — sure, he’s clearly broken after losing his whole planet, attaching everything and anything, but we don’t really see anything beyond that: he’s just a one-dimensional boogeyman; Khan’s dim shadow. Even then, after destroying the Kelvin in his rage, he seems to just lay low for 25 years, without attacking other starfleet vessels, or trying to sneak advanced weapons to the Romulans, or anything (except perhaps packing on the pounds, nervous eating or something). We don’t even get to find out how he lost part of his pointy ear. Plus his ship is super-weird looking based on all the other Romulan stuff we’ve seen: no wings or swooping lines, no green illumination. Sure, it’s a futuristic mining ship of some sort, rather than a bird of prey, but we never get to find out if it’s just because the ship designer wanted something more unique and menacing, or if there’s a story behind it.

Of course, I’ve always thought the Romulans were poorly used as villains. They had this mystique to them, what with their cloaking ships, and spying, double-crossing ways, and ability to look a lot like Vulcans. But it’s never really been used to very good effect when they show up as villains. I was particularly surprised to see a Romulan villain after the rather weak (IMHO) Nemesis (where the Romulans themselves were quickly replaced by a human and the vampire Romulans).

The way that they’ve put themselves into this parallel dimension was fairly clever, and it should allow for a re-visiting of some earlier villians (esp. Khan Noonien Singh) in completely different settings. Can you imagine now finding the Botany Bay for the first time and instead of a psychotic mastermind hell-bent on revenge, we could start over with the merely half-psychotic mastermind interested in a little conquest and empire-building? Perhaps he could even influence a younger, more ambitious Kirk…

Edit/further thoughts (more spoilers):

Ok, I didn’t want to bring it up in the first draft, but what the heck was up with the oompa-ewok with Scottie?

After reading some other reviews on the internet (and their comments), I found out that apparently there was a set of deleted scenes that showed the Romulan vessel disabled and drifting after being rammed by the Kelvin… Klingons come upon it in this weakened state and capture the Romulans. It takes them 25 years to recover their mining vessel and escape (and that was the source of the Klingon transmissions Uhura picked up). Can’t wait for the extended DVD to show that…

Fusion Hybrid Trunk Space

May 10th, 2009 by Potato

A quick update on the Ford Fusion Hybrid: a review in USA Today puts the trunk space at 11.8 cubic feet, vs the nearly 16.5 cu ft listed on Ford.ca. That’s much more believable, and yet is still a bit of an improvement over the Toyota Camry Hybrid (10.6) and Honda Civic Hybrid (10.2). It’s still shy of the Prius (16 cu.ft. for 2009, should be 16.5 for 2010) and Insight (15.9 cu.ft.), but that’s the magic of hatchbacks!

Also, if you haven’t heard, Ford got a hypermiler behind the wheel of a Fusion hybrid and held a “thousand mile challenge” — to try to get 1000 miles on a tank of gas. Well, with Wayne behind the wheel they actually managed to take the car over 1400 miles, which translates to a fuel economy of roughly 3 L/100 km. That’s damned respectable, no matter that it won’t really reflect the real-world performance.

InnVest

May 8th, 2009 by Potato

InnVest (INN.UN) is a smallish real estate investment trust that focuses on hotels (in particular, the Choice Hotels brand). For a long time I’ve always had a preference for the Choice hotels when on vacation since they seemed to hit the sweet spot for me between affordability and quality. The opportunity to own some came in the stock market meltdown last fall, and I picked up “half a position” in November around $3.85. Now as it turns out I could have got it much cheaper just a few days later, and I recognized that I might be grabbing a falling knife at the time, which is why I only invested about half as much as I typically put in any one stock. For a long time I was sorely tempted to buy more while it lingered around $3, but never did because I wasn’t sure that it would come through the recession unscathed — after all, everyone expects hotels to fare poorly when discretionary spending/vacations gets cut back by squeezed families. Of course, a lot of bad news was priced in at $3 (and even as low as $2.40!), and a distribution cut bringing a small margin of safety was behind it, hence the internal debate. In the end I never went for it, and now with reports of a potential flu epidemic, I would expect things to be even bleaker.

However, InnVest has actually out-performed the market since the March lows — bouncing back roughly 80%. True, it was getting ridiculously low, and it probably still has some good upside left to it (the current yield is over 15%, and it’s still down over 50% from its highs last year). Nonetheless, I can’t help but wonder if this is a good time to take some profits. While I didn’t buy all that close to the bottom, I am still up over 20% so far (~14% from the capital appreciation, and 8% from distributions to date — less 2% for commissions). The first-quarter results are due at the end of the week, and there’s never any telling what will happen when those come out.

I don’t know why this one appears to be immune to the fear of a pandemic, perhaps losing Mexico will mean more Canadians vacation within Canada this summer, but I’m starting to get a bit of a gut feeling to bail. I generally try to invest with my head though, and INN looks like it’s still a hold at this level.

In more general investing news (well, for myself anyway) this spring rally has been pretty decent. I did sell a few stocks as it ran up, prematurely in all cases, because the bear market had made me fearful of rallies, but it’s still going strong. Despite the minor goofs (and I can’t really call keeping liquid cash available until I know my tax bill a mistake, even if I could have done better staying invested), as of today I finally have some outperformance relative to the TSX and S&P500 indexes. Of course, I expect to outperform, not because I think I’m good (but I hope to for that reason, otherwise trying to be an active investor is a waste of my time and commission fees), but rather because this has been a down market, and I’ve been investing over time as I managed to save money (and as I shifted from ~80% stocks to ~100% stocks in my savings). Just from (accidentally) timing the market, I should be outperforming. Since January of 2008, I’m down ~24%, compared to the indexes at roughly -28% & -36%. Of course, my returns include dividends and distributions, whereas I don’t think Google Finance’s reporting of the index values does, so it’s still not all that impressive. Nonetheless, at least it’s some kind of improvement: it was getting depressing when for over a year, despite averaging down, I was tracking roughly an 80/20 split of the Toronto and New York markets. So finally seeing a bit of outperformance is good… though I’m sure I’ll get depressed all over again if I bothered to see how I’d be doing if instead of just comparing over the last 16 months I instead looked at what would have happened if I just averaged into the TD e-series funds… (which, yes, I own some of, which helps pull my returns towards those of the index, for good or for ill).