If you’ve been using PCs for a while, you’re bound to have an old one you don’t use much, if at all. With 2-GHz computers available for well under $1,000, what good is an old 300-MHz Pentium II system? The answer depends on your willingness to experiment, have fun, learn, and prevent pollution. Here are ten things you can do with that old PC, starting with tasks for relatively “better” old PCs, and working our way down to the real junkers. [via] Link.
If you use Roxio Toast (Lite or Titanium) to make your own CDs/DVDs from audio purchased from the iTunes music store, those days are over if you upgrade to 6.1 – “Following discussions with Apple, this version will no longer allow customers to create audio CDs, audio DVDs, or export audio to their hard drive using purchased iTunes music store content” Link.
Handy battery guide- Each battery has unique needs that must be met to obtain reliable service and long life. The Do and Don’t battery table summarizes these needs and advises proper handling of each battery type. Optimal handling may not always be practical in real life. Deviations from the ideal are acceptable but will lower the life expectancy of the battery to some degree. Exposure to heat may be the larger deterrent. Link.
Bruce writes “This site contains 45 new microcontroller-based projects from this semester, plus 150 older projects. Projects include a turbidty meter, video games, and an electronic flower. All projects are designed and constructed by students during the last month of classes in the spring semester”. Great stuff! Link.
Built as a one-man-band musical instrument- The Phoney Controller consists of a telephone housing, four Force Sensing Resistors (FSRs), an Analog Devices ADXL202 two-dimensional accelerometer, a BASIC Stamp II (BSII) microcontroller, a stupid “on-off” switch, and a cool LED! I am essentially using the BSII as a MIDI sequencer. All sounds at this point have to be generated from an external MIDI synthesizer. The FSRs and the 2D accelerometer are used to control various aspects of the sequencer. Link.
Uber-Review writes “If you’re in the market for your very own walking robot, Masaaki Nagumo has you covered. His robot, the single-seat Land Walker robot, standing 3.4 meters high and weighing 1 ton, can walk forward, backward or sideways at 1.5 kph by operating four pedals, and shoots sponge bullets from two air guns installed beside the cockpit. He says he’ll make you one for only the low price of $300,000 U.S. The price will be lowered if enough people place orders. So go ahead and convince a buddy or better yet, get his and hers”. Link.
