A few years ago, the Science Channel aired an episode of SciFi Science, “How to Build a Lightsaber” hosted by theoretical physicist Dr. Michio Kaku. He explained some theories that might be used and developed a rough design that should be “workable in our lifetimes.” Of course almost all of his episodes end up with that qualification. Last month it looks like there was a breakthrough in the hardest part of making a lightsaber work, getting the blade to stop at a certain point.
Although the most prominent uses for controlling the depth of laser cutting are surgical and clinical, Fraser said the team is “very excited about the potential industrial applications,” especially since compared to clinics it’s easier to get new technology into industries.
Unfortunately, the goal is to make the lasers useful surgery, not chopping off alien arms at cantinas.
Tonight with my wife, I watched an interesting episode of Nova titled “The World’s Smartest Machine.” Romantic, right? You can tell we are a couple of geeks at heart. Being a huge fan of Asimov and his robot creations, I am continually amazed at the progress of robotics and artificial intelligence. As a kid I was playing chess as early as the 3rd grade. I’ve always thought of myself as a pretty good chess player. When I heard about a computer that supposedly could beat a world champion chess player, I was intrigued. Garry Kasparov battled IBM’s Deep Blue supercomputer in 1996 and won, however he eventually lost a rematch in 1997. Well, IBM is back at it, this time taking on Jeopardy. Nova takes us behind the scenes with the developers of “Watson,” the next step in AI. I was disappointed when the episode ended and it didn’t say who won. I didn’t realize until logging on PBS.org that the contest actually was taking place while I was watching Nova (on my media center PC). After some frantic Google searches, I eventually came across a Twitter feed with a link to a Youtube posting of the episode. This was not quite 2 hours after the episode aired! Isn’t technology great? I expect the Youtube post to be served a DMCA take down, so watch it soon if you plan on it. In addition to the episode at the end of this post, I’ve embedded the Nova preview and an humorous parody of the challenges Watson overcame during his development. I suggest watching the Nova episode first. If you are at all interested in AI, you must check these out!
There are two more nights to the match, airing Tuesday February 15th, and Wednesday the 16th. Be sure to check them out, along with some live blogging on PBS.org. I find myself rooting for Watson, not because I want to see humans defeated, but because I want to see humans capable of making something smart enough to do it. Who do you think will win? Who do you want to win?
I just StumbledUpon an interesting article about a new type of printer that can make 3D objects. You can use various materials as input ranging from plastics to chocolate if you wanted. This device reminded me of the Matter Compiler in The Diamond Age which I reviewed recently. This is still a primitive technology, but I wonder if what Neal Stephenson envisioned might ever come true. Check out the original site to watch a brief video demonstration of the device.
In 1992, the year of his death, Isaac Asimov was awarded the Hugo Award for best novella for writing Gold. This story, along with many others was published in 1995. Along with 14 other short stories, there are collections of essays called “On Science Fiction,” and “Writing Science Fiction.” Interestingly enough, I found the essays much more interesting than the stories themselves. I think this is partly because I have read a TON of his fiction, but haven’t got around to reading his non-fiction. I’ll give a brief overview of the essays, saving the stories for later. (more…)
