In this episode of MAKE’s Weekend Projects, Bre Pettis shows you how to to make a “foxhole radio” out of a paper tube, wire, paper clips. Flickriver – view images as a ‘river of photos’ and more. How to Make a Foxhole Radio The design can be modified to make the radio tunable. To see all the plans, go to Pettis, Bre. Publisher.
|Published (Last):||20 March 2010|
|PDF File Size:||1.70 Mb|
|ePub File Size:||15.30 Mb|
|Price:||Free* [*Free Regsitration Required]|
You can place your badge on your Flickr profile, Blog or Website. And rdio the case of AM radio, the induced electric currents will even be directly related in their amplitude to the sound being transmitted, which means no complicated circuitry is needed to hear them. Use Flickriver Badge Creator to create a badge linking to any Flickriver view.
The radio antenna, when properly tuned to the frequency of the radio transmitter, will induce small electric currents. In the video below, Bre Pettis shows how to do it:. Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view – most interesting today, by user, by group, by tag etc.
On investigation it was found that modulated arcs on barbed-wire fences were picking up BBC World Service transmissions. I could hear a static noise as I rubbed the wires on the end of the plug. The electric current going through the air creates a plasma which, by varying in intensity, can expand and contract, producing sound waves.
I then rzdio to amp things up a bit and use the M-Audio Microtrak to amplify and record the sound. Works with Firefox and Internet Explorer. We needed some confirmation, and an ordinary investigation soon paid off as we found this other video of the same phenomenon:.
Make a Foxhole Radio – Weekend Project PDFcast
Changing the number of turns is supposed to change the tunning. Some further ordinary investigation reveals the effect is not that rare. Here the overloaded antenna discharges in the air, and even without rectification, the arcs produce audible sound. IE users – add the link to your Favorites under the Links folder View on Flickriver open on same page View on Flickriver open on new page.
During the time that I heard it, it was broadcasting on I took everything outside and tied it off to the top of a tree.
MacGyver would be proud. Just a big paperclip. Make one, it’s easy and fun— keeps your mind sharp. Or at least, that was how we could understand the effect. In this case, the effect is seen or heard directly in the transmitter antenna.
Flickriver: Photoset ‘Foxhole Radio Project’ by bre pettis
Edited by Kentaro Mori. Leave a Reply Cancel reply Your email will not be published. Here is a short story to understand it: I could hear music, Christian music to be exact.
They may sound like urban legends, but as we have seen now, they are more than plausible. So what you see is my attempt at making one click for a larger view.
Perhaps the Mythbusters should indeed reevaluate the polemic case of the talking tooth fillings. Name and Email fields are required.
It looks like magic, even something supernatural, but its science, or at least, the very bte explanation we can find to the phenomenon. Use Flickriver Badge Fodhole to create a badge linking to any Flickriver view example: It was working— I could hear radio static, which is what I would expect if it wasn’t tuned to a station.
It used simple wires, thumbtacks, safety pin, pencil, etc. Besides scaring the construction workers, it shocked and formed electric arcs in the air.
Badge creator Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view.