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.
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The radio antenna, when properly tuned to the frequency of the radio transmitter, will induce small electric currents. This project was very approachable since it didn’t require foxuole specialized electronics, hard to find diodes, chips, resistors, latches, etc etc. I was using my headphones to listen in but heard nothing.
Use Flickriver Badge Creator to create a badge linking to any Flickriver view example: Strange voices in hedgerows at night were reported to the police or the Home Guard.
They can be made, MacGyver style, with a headphone, electric wire, a pencil, safety pin, razor blade and a toilet paper tube…. Menu Skip to content. 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.
It looks like magic, even something supernatural, but its science, or at least, the very natural explanation we can find to the phenomenon.
Works with Foxhooe and Internet Explorer. We needed some confirmation, and an ordinary investigation soon paid off as we found this other video of the same phenomenon: Because knowing crystal radios made with pencil and razor blades, utterly cool by themselves, just makes it even clearer how amazingly nice are the plasma radios.
That would be fabulous… except that this first hypothesis has its problems. On investigation it was found that modulated arcs on barbed-wire fences were picking up BBC World Service transmissions. Badge creator Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view. Just a big paperclip. I could hear a static noise as I rubbed the wires on the end of the plug. Jim suggested that I try reorienting the antenna which is about 30 ft long.
Also, allows quickly viewing any Flickr photo on black background in large size. Does plasma also work as a rectifier? Weekend Flxhole showed how to make a foxhole radio. It used simple wires, thumbtacks, safety pin, pencil, etc. You can read foxhkle about if on HowStuffWorks.
Well, it comes from the plasma, not much different from the thunder. Besides scaring the construction workers, it shocked and formed electric arcs in the air.
» MAKE: Foxhole Radio
The plasma radio is therefore simpler than a crystal radio set, and mind-bogglingly fantastic, from the absence of a rectifier and filter, to the plain danger and coolness of playing with dancing electric arcs. In the area of the effect of radio waves very big potential difference emerges.
Some further ordinary investigation reveals the effect is not that rare. Does a single turn equal. At first, it didn’t work. These improvised crystal sets, as they needed no batteries and could be made with household items were very useful to GIs in the Second World War.
Put everything together, and you have a crystal radio set. Here is a short story to understand it: Add to your iGoogle or Netvibes page Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view – most interesting today, by user, by group, by tag etc. MacGyver would be proud. By putting another grounded steel cable in contact with it, the current flows and then fly through the air, creating a plasma which changes along with the radio signal, translating into audible sound.
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Edited by Kentaro Mori. It was working— I could hear radio static, which is what I would expect if it wasn’t tuned to a goxhole. Or at least, that was how we could understand the effect. I put the headphones and and huzzah! As one operator points out:. I could hear music, Christian music to be exact. Install “View on Flickriver” script Bookmarklet While viewing any Flickr photos page, click on the bookmarklet to open the same view on Flickriver.
Make a Foxhole Radio – Weekend Project PDFcast
So what you see is my attempt at making one click for a larger view. You can place your badge on your Flickr profile, Blog or Website. Leave a Reply Cancel reply Your email will not be published.
There are a lot of ways radio waves can be heard. Use Flickriver Badge Creator to create a badge linking to any Flickriver view.
Among the simplest radios that can be built are the crystal radios. Name and Email fields are required. This is no trick! Changing the number of rario is supposed to change the tunning. The electric current going through the air creates a plasma which, by varying in intensity, can expand and contract, producing sound waves.