What is a cup and string phone called?
A tin can telephone is a type of acoustic (non-electrical) speech-transmitting device made up of two tin cans, paper cups or similarly shaped items attached to either end of a taut string or wire.
Do plastic cups work for cup phones?
To make your own String Telephone, you will need: 2 plastic or paper cups – a tin can works great too. String (you can experiment with different lengths)
Which material is best for string telephone?
Suggested Materials Different kinds of cups (paper, plastic, Styrofoam, metal cans, large, small, etc.) Several different kinds of string (cotton, kite string, thread, gimp, dental floss, etc.)
Do cup phones work around corners?
The key is to make sure that the string is tight between the two cups, and this normally means that the distance is limited and the two people have to be connected to each other by a straight line. But as long as the string is tight, it works.
Are cup phones real?
A string telephone works very much like a landline phone. When you talk into the cup your voice sends sound waves inside the cup, vibrating the bottom of the cup. The vibrations are transferred to the string, across the string and into the bottom of the other cup.
How far do cup phones work?
Making a Paper Cup Phone Pull the string taut and have one person speak into one of the cups while you listen through the other. The cups can be used to communicate over distances of up to 100 feet.
What kind of string works best for CAN phones?
Step 1. You will need 2 empty tin cans, a hammer, a nail or screw, masking or duct tape, and a long piece of cotton string or fishing line, about 10 to 30 feet in length.
How do you make a string walkie talkie?
Follow these steps:
- Step 1: Empty and clean the tin cans, removing all labels. Then start decorating.
- Step 2: With a grown-up’s help, use the nail and hammer to put a small hole right in the bottom middle of each can. Next cut a string to the length you want.
- Step 3: Attach your decorated paper to the cans using tape.
How do you make a styrofoam cup phone?
To make your own String Telephone, you will need: Simply make a small hole in the bottom of both cups. Thread your string through the cup and tie a knot to keep the string from pulling back through. That’s it!
Does tin can on a string work?
How Do Tin Can Phones Work? Talking causes little vibrations in the air in front of your mouth, as you can tell by speaking into your hand. When you send those vibrations into the can, they cause the back end to vibrate. This vibration is passed along the string and into the other can.
How do you make a cup and string telephone?
Let’s take a look at how to make an effective cup and string telephone. For materials you’ll need to buy two paper (or plastic) cups and a non-stretchable string, and you’ll need a pair of scissors. Here are the steps to make a paper cup telephone: Poke a hole in the bottom of each cup with the scissors or another small, sharp object.
How do cup phones work?
Because the sound travels through solid mediums – the cup and the string – it travels more effectively than through air, allowing the users to communicate across large distances with volumes that would be inaudible if spoken through air. Effective Cup Phones •••Michele Rider/Demand Media You must pull the string taut in order for the phone to work.
How do you use a cup and string game?
Put one cup at each end of the string. (You may want to experiment with different cups and strings to see what works best.) Hold the string tight and talk into one of the cups. The person at the other end should be able to hear you. Why does the string have to be tight?
How does a string telephone work?
(Answer: The sound waves travel from the first person’s mouth, into the first cup, down the string, vibrate the second cup, and into the ears of the second person.) What could you do to make the string telephone work better? (Answers will vary.) The String Telephone Company has hired you as engineers.