Regular followers of this blog or of my flickr account perhaps noticed an enormous improvment in the quality of my macro photos about a year ago; at the time I put together a primitive light tent using foamcore and tissue paper. Although the photographic results of this project were all I could hope for, the tent itself was extremely fragile, awkward to set up, and likely to collapse while shooting. So I took what I learned from my first effort and built an improved tent with a PVC-pipe frame and a bedsheet light diffuser.

Looking at photographs from my recent trip to Copenhagen I conclude I must have spent a lot of my time in churches! Here are some of the results:

Although I've certainly consumed and enjoyed a lot of Star Trek in my life, I have to admit it has many shortcomings as science fiction, that is, as fiction that takes for its starting point speculations about the future state of science. Although I don't doubt that the writers of the various forms of Star Trek are both competent professionals and talented artists, they've been burdened by difficult positions taken at the very creation of the original show, and ever since have had to decide how much of this past they can shrug off.

One of the more problematic legacies of the show's origin is the transporter (another, Star Trek's laughable treatment of economics, should probably get a whole treatise rather than just a blog post, but I'll leave that for another time), which is one of those technologies sometimes posited in science fiction stories that, for various reasons, writers fail to fully explore. One of the most common reasons is that some technologies (or, in the case of superheroes, some powers) are altogether too powerful, and the consequences of that power pose a problem for storytelling; if characters have godlike abilities at their command, what room does that leave for drama, for tension and its relief, for a satisfying plot?

I've added two new types of components to my toolkit of 3D printed machine parts: a snap-fit pivot or hinge, and a dovetail suitable for joining two parts together at a right angle.

I've made a video of my 3D-printed bolt and nut combination, showing the action of threading it on and off.