You can probably make this yourself for about five dollars with a quick trip to the Radio Shack. Now, this requires another piece of hardware, which is this infrared pen. So I'm going to show you how to create one with a Wii Remote. And, for example, if you're in a school that doesn't have a lot money, probably a lot of schools, or if you're in an office environment, and you want an interactive whiteboard, normally these cost about two to three thousand dollars. So here, I have my computer set up with the projector, and I have a Wii Remote sitting on top of it. And I'm going to show you two demos of why this is useful. But what actually interests me a lot more is the fact that in the tip of each controller is a relatively high-performing infrared camera. And it's mostly advertised for its motion-sensing capabilities: so you can swing a tennis racket, or hit a baseball bat. For those of you who aren't familiar with this device, it's a $40 video game controller. And they actually use the Nintendo Wii Remote. I'm going to show you two videos that have gotten a lot of attention that I think embody this philosophy. Something that motivates me, and gets me really excited about my research, is when I see simple opportunities to drastically change that distribution and make the technology accessible to a much wider percentage of the population. But it creates this unfortunate situation where a tiny, tiny fraction of the world can actually participate in this exploration or can benefit from that technology. And this is essential to the progress of science, or exploration of what is possible. So, as researchers, something that we often do is use immense resources to achieve certain capabilities, or achieve certain goals.
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