The outdoors – Page 29 – a sibilant intake of breath

f = m * a

In a conversation at the end of Sunday’s walk, we realized just how much energy is actually involved in such a trek. Our vertical ascent was about 1100m, spread between climbing Yoke and following the ridge of the Kentmere Horseshoe. That is about 75kg of me personally, plus a pack. Imagine me falling from 1100m up, and you begin to appreciate the gravitational potential energy built up through the (not entirely efficient) expenditure of chemical energy. We also traveled more than 20km, as the crow flies. Then, there is the fact that we had to absorb all the energy from all the descents into our muscles and dissipate it. Add in the energy required to keep us warm, balanced, and thinking, and you are racking up a good number of calories.

It’s amazing how far some dry cereal, two sandwiches, a couple of chocolate bars, and ones various short and long-term energy stores can go. The fact that I didn’t feel unusually hungry at any point during the weekend suggests that those stores were not seriously depleted.

As you may guess, this weekend included a lot of interesting discussion about physics, biochemistry, and physiology. We also learned a good bit about sheep.

Back from the Lakes

The weekend in Lakeland was most enjoyable. We spent Saturday and Sunday walking, each time going around a horseshoe of peaks. Saturday, it was the Coniston horseshoe, starting with the Old Man. That day involved some enjoyable scrambling, a bit of actual rock climbing (for those who cared to try), and a brief nighttime rescue operation. Thankfully, those we set out to find met us on the road back from where we were heading to look for them. Sunday, we did the Kentmere Horseshoe, starting with Yoke.

The walking was atypical of the club for a couple of reasons. Firstly, I had never previously spent a day with them in which it did not rain significantly. Neither day of this trip involved any rain at all. Secondly, this was distinctly less strenuous than Snowdonia, which was distinctly less strenuous than Scotland. I rather enjoyed the drama of steep slopes and narrow, windy ridges during the previous two trips. Of course, there is something to be said for sheep-speckled tranquility as well.

In terms of company, this trip met the high expectations I had of the Walking Club. There is always a fascinating mixture of people from different fields – from theology to comparative literature to medicine – and they tend to get along in a very spontaneous way, even when they have not met before.

Photos and such to follow. For now, I need to get some sleep.

Three follow-ups

1) Remember how our flat got deprived of refrigeration? One week on, we are still subsisting off of bread and cheese we keep cold in the metal cages outside our windows. We call them the ‘alternative fridges.’

2) Remember how I lost the ballot for the Lake District trip with the Walking Club? Well, somebody dropped out. Because I expressed so much interest in it, they offered the spot to me. As such, I will be climbing mountains again from June 1st to 3rd. The only thing that would make it better would be having more than 16 days left before exams.

3) Remember ‘Studio Photography on the (very) cheap?’ Well, I have figured out how to build a large and effective diffuser for under $3. That was the purpose behind this query. Two sheets of A1 tracing paper turn out to perfectly cover the lower section of the window.

Note how English tea stains glassware. The picture would be a lot more attractive if I propped the glass objects up on something, cleaned them before taking the photo, and photoshopped away the tape holding the paper to the window and the place where the two sheets overlap. This was meant to illustrate the assembly, not be artistic of itself.

Alaskan fishing photos

Here is an interesting series of photos about fishing in Alaska. There are huge waves, giant crabs, and a feisty cat. Having read so much about fisheries in the last few years, it is nice to have some visuals to accompany my thinking. Here are my favourites:

PS. Be advised that a few of the advertisements on the original page may not be work appropriate.

Protecting parks

While it is excellent to have national parks established, the difficulty with making them meaningful lies in the enforcement of rules on entry and activity within the defined territory. Even American national parks are having trouble with poachers. The problem is certain to be more acute in less affluent areas, where the impulse to protect nature is more immediately threatened by poverty. Just 14 rangers patrol the 4,200 square kilometres of the Nouabale-Ndoki national park in Congo. Technology can play a part in park management: from satellite tracking and motion sensors to networks of internet connected metal detectors looking for guns and machetes.

Ultimately, technical fixes will probably not be adequate protection in the most vulnerable areas. The reasons for this are primarily economic. There is more money to be had in exploiting the content of parks than in protecting it, and there is no incentive for local people to refrain from damaging activities and be vigilant in preventing others from doing so. As with climate change, the biggest challenge lies in creating institutional and financial structures that encourage environmentally responsible behaviour. Growing recognition of that among policy-makers and the NGO community may eventually lead to much more effective enforcement mechanisms.

This article discusses the TrailGuard metal detectors in much more detail. They sound very clever, even if they are unlikely to solve any problems in and of themselves.

Excellent nature photography

Wandering through the forums on photo.net, I came across the work of Wojciech Grzanka. His macro photography of insects is especially cool. Magnified insects look so other-worldly it is no suprise they have inspired to much science fiction and fantasy, ranging from the brilliant to the amusingly mediocre.

One of the best things about the photo.net community is the sheer level of skill and helpfulness among the community members. At the same time, the quality of other people’s images is almost certain to make you feel like a rank amateur.

PS. Grzanka’s website is pretty slick as well, though the images seem to be the same as those on photo.net.

GPS and navigation

I have been annoyed recently by full-page ads in which RIM is advertising the navigational capabilities of their new BlackBerries. They suggest that people can throw away maps and compasses and wholeheartedly embrace the combination of GPS and electronic maps.

I know firsthand how useful GPS can be. As an altimeter or a way of locating yourself in a featureless landscape, it cannot be beaten. Likewise, it is very helpful for quickly figuring out where you are when you are out on the water in a canoe or kayak. All the same, I think there is a fundamental value in being able to read a map, locate yourself on it, and work out a course to where you want to be. It isn’t enough to take a course in these things and forget about it. As with any complex skill, practice is important.

Some common sense is also a necessity, no matter how you are navigating. If your GPS-based automobile navigation system tells you to drive along train tracks, you should be aware that machines are fallible, and highly stupid as well. They have no common sense by which to evaluate whether, for instance, a bridge has been washed out or whether a linear course between A and B includes a series of lethal cliffs. There is also the small matter that some dead batteries a splash of water or a dropped piece of gear could knock out both your map and compass equivalent, if you are relying on a GPS system.

On GPS, Galileo, and precision
A post on the nature of time that concerns the GPS system
On great circles

Lakeless

Unfortunately, I lost the Walking Club ballot for the Lake District trip. That is probably going to be good for my exam revision, but it will be a shame not to see the area before I leave.

Oxford verdant and twittering

The emergence of spring in Oxford is rather dramatic. I would expect that this seems especially true for someone from Vancouver. Since most of our trees are coniferous, the degree of colour change that accompanies the passage of the seasons is much less pronounced. Our green mountainsides may spend less time obstructed by cloud-banks, but we are rarely treated to the elegant site of a large and ancient tree gaining or shedding its foliage.

In addition, Oxford seems to be positively thronged with birds these days: singing in the early morning and escorting the first – almost comically cute – ducklings along the banks of the Cherwell. All this has made showing Hilary around even more enjoyable. Today included a lengthy visit to the Natural History Museum and a far shorter one to the Museum of the History of Science, complete with the famous Einstein blackboard. Attending my first OUSSG meeting in a year in a non-executive capacity was enjoyable, even if I didn’t partake in the very fine dinner that takes place beforehand.

Speaking of the OUSSG, some of you may remember when I said that the Oxford University Strategic Studies Group needs a new webmaster? Well, the position remains open. The level of work involved is fairly limited and the group is a rather interesting one. Anyone who can run a blog knows enough about the web to maintain the site.

Mountain hat-trick

I may be spending the weekend of June 2nd hiking in the Lake District of England. Along with the Highlands of Scotland and Snowdonia in Wales, this one of the most significant mountainous areas in the British Isles. The only problem is that the Walking Club trip is uncomfortably close to my final exams, which will be between the 11th and 16th. Whether participating is possible or not will depend on how frantic things are looking closer to the date.

Photos from Scotland and Wales are linked on this page.