November 27, 2009

DIY Laser Light Show using Speakers
DIY Hacks

4

  If you have a laser pointer, a few speakers, an old radio and some small mirrors you are all set to make your own DIY Laser Light Show. Alex Wiebe from Flyinglow created the project based on one he read about in the pages of Make magazine.  The first video shows the system configuration and it operating under normal lighting conditions, the second video is in the dark and

Solar Hot Water Heater
Computer Hacks

6

  I wasn’t aware that central hot water was rare in Brazil, here in Canada every home has central hot water and it is just taken for granted that every house has a large electric or gas heated hot water tank. Jacob Teater wanted to cut his electrical bill by installing a Solar Hot Water Heater and re-plumbing his home. Have a look at the video around the 8:40 mark