Gardinator
This morning I raked up my fallow back yard garden plot and built a pair of simple raised beds.
I’ve gradually accumulated quite a bit of compost, which I will add to the soil in the beds.
Posted on Tuesday, July 23rd, 2013.
A Limerick, the Throne of the Crescent Moon, and Places in Fiction
Here’s a limerick about Throne of the Crescent Moon, the debut novel by Saladin Ahmed:
There was a wise man from Dhamsawaat
who lived with a boy who prayed and fought.
The man loved an old whore,
who deplored the ghul war,
and the boy met a girl who was not.
(With apologies to Zamia and Raseed for making light of their story – but I suspect Doctor Makhslood would embrace a harmless bit of impious doggerel!)
I enjoy stories with a strong sense of place.
Examples large and small come to mind: sordid New Crobuzon from China Miéville’s Perdido Street Station (not to mention the conjoined cities of The City & The City); Green Town, Illinois – distillate of gothic Americana that it is – from Bradbury’s Something Wicked This Way Comes; all of the burgeoning desert planet Arrakis from Frank Herbert’s Dune; and even Redwall Abbey from the Brian Jacques series of the same name.
Vivid impressions of these places root them in my memory.
I think that in the Crescent Moon Kingdoms – and especially the big, bustling, central city of Dhamsawaat – Ahmed may have created a similarly memorable setting. The main character Aduolla Makhslood is an expert ghul hunter and affable old fart who is all the more relatable for his relation to the places he inhabits: his favorite tea house, his run-down neighborhood, and his own dear home. So, as with the examples above, Aduolla’s world has become a part of mine.
(Links to related short stories…)
Posted on Saturday, July 20th, 2013. Tags: books, limerick, reviews.
Truck Bed Pannier Racks
A few weeks ago I put a bike rack in my truck bed. Today I added a pair of pannier racks!
Posted on Saturday, July 13th, 2013. Tags: bike.
Orbits in 3D
I’ve been playing around with ideas for a new satellite tracking web site. The main idea is to supplement a conventional 2D ground track map (like what I made for Where’s That Sat, or as often seen on the big screen at mission control) with a 3D view that displays the same orbits as paths swept out around the globe. I believe that seeing the actual shape of an orbit in space helps you to interpret the corresponding flat representation. So, there is even an eccentric pedagogic purpose to this project: it is an instructional aid for developing orbital map-reading ability.
Here’s an example:
The code to generate this image is crude, but the results are already encouraging.
Posted on Thursday, July 11th, 2013. Tags: geography.
VXX Report
On Saturday I ran the 43rd annual Vestal XX (20k) road race. My time was 1:35:44, which is better than my rookie result from 2011 (1:36:17), but not as good as last year’s time (1:33:19). I am pleased that I ran consistent splits of 7:45/mile or just under. However, I had hoped to accelerate to a more aggressive pace as the race progressed, similar to my Bridge Run performance. I couldn’t muster the guts. There’s always next year, though, and the year after that, and the year after that… and if you manage to run the Vestal XX twenty times without croaking, you get a special award! A mug.
Posted on Thursday, June 20th, 2013. Tags: running.
Truck Bed Bike Rack
I turned a pair of old roof rack bike trays into a truck bed bike rack. More photos here.
Posted on Thursday, June 20th, 2013. Tags: bike, truck.
Raspberry Pi LEGO case
I built a LEGO case for my Raspberry Pi computer. It was blogged by The Brothers Brick.
I also created an LDraw model of the case. Here are step-by-step building instructions, so you can build your own and perhaps improve on my design:
A functional difference between this and other LEGO Pi cases I’ve seen is that mine is designed so that the Raspberry Pi’s circuit board slots directly into “rails” and is held securely in place when the hatch is closed, yet it can be easily removed by opening the hatch and sliding it out. No part of the Pi contacts the case except the very edges.
Posted on Tuesday, June 11th, 2013. Tags: LDraw, LEGO, raspberrypi.
Folding Bike
Earlier this year I picked up an older Dahon folding bike for cheap. It worked, but needed some TLC: the wheels were lopsided, the rotating parts (hubs, pedals, crank) needed lubrication, and the folding mechanisms were all a bit sticky. I had the wheels trued at the bike shop. I greased all the bearings and replaced the gummy old pedals. Today I freed the seized-up seatpost and re-adjusted the brakes with newer pads. It’s still a bit of a rattletrap compared to the precision standards set by my main bike, but now it is ready to ride!
Posted on Friday, May 31st, 2013. Tags: bike.
My Raspberry Pi
The Raspberry Pi model B is a 35 dollar computer that’s about the size of a deck of cards.
I believe it is made possible by the proliferation of low-cost components developed for mobile devices like smartphones, which are now adequate to power a modest general-purpose computer. More background and technical details are discussed on Wikipedia.
It’s a bare-bones system consisting of a circuit board ringed with connectors: 2×USB, ethernet, HDMI/RCA video, 3.5mm audio, 5-volt power via micro USB, and an SD card slot. There’s no hard drive; it boots from the SD card, on which I’ve installed Raspbian, a pared-down Linux distribution tailored to the Raspberry Pi. The 5v power supply is common to many cell phones and other small devices. I’m using an iPhone charger.
Eventually I’d like to build a custom case. So far, I’ve just been experimenting with what doodads work with the Pi. It has no built-in wireless networking capabilities, but I was pleasantly surprised to find it readily recognized the little Airlink USB wifi adapter I picked up some time ago (but ultimately did not need) for my laptop.
Some tinkering is required to get certain features to work, but the fun of figuring things out is arguably half the point of a device like this. It isn’t very fast, either, but hey, man, it’s only $35!
I haven’t assigned a particular task to my Raspberry Pi yet. Due to its low power consumption and perfectly quiet operation, it seems well-suited to take over from my Mac as a server for my ebook catalog, my growing army of eccentric Twitter bots, or other programming projects. Alternatively, it could be the built-in brain for the book scanner I’m rebuilding. Or it could control a battery-powered 3D helmet-cam!
Posted on Friday, May 31st, 2013. Tags: raspberrypi.