The highly similar acoustic tin can telephone, or 'lover's phone', has also been known for centuries. But as a regular smart phone user, you can use Zello to turn your phone into a walkie-talkie. Repeat these steps with the second cup/tin, tying a knot in the string through the base of the second cup/tin too. Thread one end of the string through the hole in the bottom of one of the cans from the outside to the inside. The way I discovered to make can phones go around corners involves creating a loop in the string, twisting it a few times, and anchoring it to some other object. Add the String. Is there a python library or a standard way of formatting phone numbers? With the prevalence of smart phones, asking friends and family members to download an app is still easier than buying and sending them a walkie-talkie. Sound waves need something to travel through. It’s also free to download for iPhone and Android users. http://www.nytimes.com/2012/09/06/technology/personaltech/zello-heytell-and-voxer-make-your-smartphone-a-walkie-talkie-david-pogue.html?pagewanted=all&_r=0, http://readwrite.com/2012/05/23/5-push-to-talk-apps-that-turn-your-smartphone-into-a-walkie-talkie, consider supporting our work with a contribution to wikiHow, Two tin or aluminum cans, or two papers cups. If you don’t have access to a smart phone, you can always use the first method in this article. To create this article, 26 people, some anonymous, worked to edit and improve it over time. But as long as the string is tight, it works. (In … Write a program that creates 2 lists: one of names and one of phone numbers. wikiHow is where trusted research and expert knowledge come together. Like Voxer, Zello saves messages for replay later. Well, first of all I wouldn’t make the phone out of tin cans. Repeat with the other end of the string and remaining tin can. Of course, you don’t want to pull so tight that the string breaks or pulls the string out through the bottom of your receivers. Get a piece of string and two empty cans (preferably soup cans). To learn how to make a walkie talkie using a smartphone, scroll down! An 1886 advertisement for an acoustic telephone. Any length of string can work, but a length of 10-30 feet is ideal; the string needs to be taut for the phone to work well, making longer lengths a challenge. If you want to get really scientific, try out a variety of “receivers” and types of string. % of people told us that this article helped them. Too much force could cause the string to pop out of the cups or cans. Since push-to-talk app use a very small amount of data on your phone, you can connect through the app without using minutes at all. That’s the last time I miss a call because of that stupid phone! Start a new test on your phone to record how the loss of string affects your results. An acoustic string phone is attributed to him as early as 1667. Second contains 3 digits and last group contains all remaining digits. References. It provides one-to-many group communication. For method two, and long as you have access to internet it will work. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. You’ll need two cans or cups. Using a for loop, have the user enter 3 names and 3 numbers of people for the phone book. To format string to phone number – Break the string to 3 groups using regular expression '(\\d{3})(\\d{3})(\\d+)'. Make a String Phone Social Studies Level Strand: Economics/Technology Theme: Technology Read the Book • Have students turn to the cover and read the title independently. The paperclip should be inside the paper cup. Just because we have actual technology, like virtual phone numbers, that lets us do this much easier, does not mean it’s not still fun though, and making telephones is a great ways to teach kids about sound waves and how a traditional telephone works. (To clarify, I added the picture on the right.) Sharpened Pencil; 2 Paper clips (optional) To make your own cup phones, use the tip of a pencil to poke a small hole at the bottom of each of your two cups. It’s simple to use and free to download for iPhone users. Materials Needed: 2 paper cups; 20 feet of string (We used yarn.) What message are you going to share over the string? It’s free and can run on Windows Phone, as well as iPhone and Android. It also offers one-to-one communication within a group channel, called “whisper”, or straight one-to-one communication. Zello: this app caters to developers, who want to add push-to-talk functionality to their own apps. Make sure you secure the string in the first side before threading it into the other receiver since it will simply pull away from the first one. Take two paper cups and poke a small hole through the center of the bottom of each cup; a pencil tip will work for this. We use cookies to make wikiHow great. • Turn to pages 2–3. The idea is to have a diaphragm that vibrates and pulls on the string connecting the cans. Best A-Z Little Alchemy 2 combinations cheats and hints guide! Make sure you secure the string in the first side before threading it into the other receiver since it will simply pull away from the first one. All you need is your contact list and a data plan on your phone. The cups will help transmit the sound — keep notes and find out which cup works best! Why not make your own phone? Here are my answers to the Make-to-Learn contest questions: What did I make? Tie a knot in the end of the string to keep it in the cup. Two tin or aluminum cans will hold up better than plastic ones. Tie knots in that end of the string, one on top of the other, until the resulting knot is too big to slip through the hole. Learn about how sound travels and how to make a string phone to hear sounds from distances further away! If the first knot isn’t large enough to keep the string from falling out of the nail hole, then knot it again. First group contains 3 digits. Continue removing sections from your string, 5 feet at a time, and retesting. Create a formatted string using these groups in. Experiment with your string telephone by gently pulling the string taut and then letting it fall loose. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Your string telephone is now ready to test. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. I was so frustrated. iPTT: this is one of the App Store’s original push-to-talk apps. All tip submissions are carefully reviewed before being published. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0e\/Make-a-Walkie-Talkie-Step-1-Version-2.jpg\/v4-460px-Make-a-Walkie-Talkie-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/0\/0e\/Make-a-Walkie-Talkie-Step-1-Version-2.jpg\/aid1386702-v4-728px-Make-a-Walkie-Talkie-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"