…low-cost water disinfecting system, which basically consists of a plastic tube and an ultraviolet light bulb, which can be run on solar power. It processes about five liters of water per minute. Ultraviolet light has been used to disinfect water for quite a while now. The inventors say the UV-Tube differs from other systems because it is inexpensive and less energy intensive. Link.
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.
Eric over at Phonescoop has been working with a lot of the mobile sites over the last week to auction off tech goodies for a Hurricane relief benefit. We threw in 5 one year subscriptions to MAKE, so go over, bid win, MAKE stuff and help some folks out. Link.
Neat site of Jim’s Mac Aquariums he built – I built my first MacQuarium in June, 1995. It was a 2 1/2 gallon acrylic tank fitted into a Mac 512kE case. It looked good but burst a seam a couple hours after filling. This was no suprise since I know A Great Truth – I never do anything right the first time. Unfortunately, no video of this tank was taken and so no pictures are available. I ripped it to shreds in a fit of disgust and went back to the drawing boards. 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. Link.
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! Link. You can also listen to human and computer read ones from Project Gutenberg. Link.
Create Digital Music has a round up of some of the ways you can record audio with a portable device – my fav is still the iPod, running podzilla, but it’s not always the best of course…while Nano is certainly deeply drool-worthy for listening, wouldn’t it be great to have an iPod-like device for recording? Here are some of your options- Link.
