HOW TO make ball lighting…
The purpose of this experiment is to maintain a stable plasmoid ( a ball lightning ) at one atmosphere in a spherical glass vessel. This experiment uses a kind of electronic trigger which is the GMR v1.0 ( Graphite Microwave Resonator ) placed in a microwave oven working at 2.45 GHz. A magnetron is compact, has a light weight ( compared to a HV transformer with the same output power ) and it is a high power device. It is able to produce a great amount of power in a small volume most particularly in a plasmoid. Link.
Nice review from MAKE pal Natalie Zee. If you want to take your knitting or your crochet projects to the next level, knitPro can let you add some personal touches through this online web application. Just upload a JPG of a pattern, image, type, or logo and instantly the application will generate a PDF graph that you can apply to your crafts project. 
LibriVox is an open source audio-literary attempt to harness the power of the many to record and disseminate, in podcast form, books from the public domain. It works like this: a book is chosen, then *you*, the volunteers, read and record one or more chapters. We liberate the audio files through this webblog/podcast every week. Subscribed! 
Handy, I put mind on an iPod…Cross-platform Portable Firefox works by using John Haller’s excellent Portable Firefox 1.0.6 on the Windows side of things, and a little script I made on the Mac side of things. The script basically keeps two versions of all user profile files. The reason why is simple: as I am sure some of you have figured out, Windows Firefox profiles are not completely compatible with Mac Firefox, only certian files.