Expand the description and view the text of the steps for this how-to video. Check out Howcast for other do-it-yourself videos from Kipkay and more videos in the Science & Technology Projects category. You can contribute too! Create your own DIY guide at www.howcast.com or produce your own Howcast spots with the Howcast Filmmakers Program at www.howcast.com Like looking for lost treasure? There’s no need to break the bank for a high-end metal detector — just dig through your junk drawer! To complete this How-To you will need: An AM or AM/FM radio A calculator A standard CD case Some Velcro Step 1: Disassemble the CD case Carefully disassemble the CD case by removing the insert that holds the CD in place. Step 2: Cut Velcro pieces On your radio, measure out an area centered on the back of the radio. Then cut a hook and loop piece of Velcro the same size. Step 3: Mount the radio Stick one side of the Velcro to the back of the radio, and stick the other piece of Velcro to one side of the CD case. Then mount the radio. Step 4: Mount the calculator Repeat the same process with the calculator, and apply the Velcro to the other side of the CD case. Then mount the calculator. Step 5: Set radio Make sure the radio is set to the AM band and turn it on. Now tune it on to the highest end of the AM band, but not directly at a broadcast station. Turn the volume up and all you should hear is static. Tip: If there is a broadcast station at the very high end of the AM band, get as close … Video Rating: 4 / 5
The deceptively simple wire coil that proves incredibly useful in the world of electronics – the inductor’s ability to store energy in an electromagnetic field is the key to making transformers, electromagnets, and many more components. It truly is an awesome device! For questions, suggestions, and more info – blog.makezine.com
