Learn what tools are needed to work with electronics in this free home maintenance video ... If you build one of these use 60-75 feet of 22 gauge wire and as you build up the number of turns, twist a tap ever so many turns. The taps will give you much ...
Using e-waste to create educational toys, with ThinkerToys
Electronic waste is a huge global problem ... where kids come charge their toys and play." Once any problems are identified and dealt with, the project will be scaled up for production - so long as adequate funding can be found, of course.
More non-toxic plastic toys on the way from Green Toys Inc.
Parents concerned about all the bad news pertaining to plastic toys, with their chemical loads of hormone-disrupting and possibly carcinogenic additives, can find refuge in a line of toys made by an environmentally minded U.S. toy company. San Francisco ...
7 Luxury Toys for the Wealthy Client
In doing so, the hobbies and interests of such insureds can create large ... From personal submarines to bathtubs that entertain, here’s a look at some of the top luxury toys for the well-to-do client.
In this circuit is 2 555's, One 555 triggering another 555. One of the 555's is outputting a very fast frequency to generate the sound to the speaker. The other 555 is turning that other 555 time on and off by means of a potentiometer to adjust the ...