links for 2008-08-11 [delicious.com]

"Anyone can build this simple to use light duty spot welder. I found all the parts I needed in my shop. I looked at some other plans on the Internet but they all seemed to require something I didn't already have." Not entirely safe.

“To me, virtuality is connected with interactivity – not interactivity in a “press the yes or no button” kind of way, though. Until a few years ago, the feeling of the virtual was so representational that you could only relate to it as a sort of grid. I think this has changed now. Today, virtuality means interactivity in the sense that if you engage, the virtuality changes. And, perhaps more importantly, as you do that, you change as well, because you’ve taken it upon yourself to engage, to interact. The double perspective is acknowledged by the virtual space. The important thing is that virtuality should have an impact on you, just as you should have an impact on it. As a result, it contains a certain unpredictability.”