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Tin Can Phone

Tin Can Phone

You will need:
Two tin cans (or paper cups, or plastic cups)
One piece of string or thin rope that is long enough to connect both the “phones”

Poke holes in the bottom of the cups – the holes should be about the size of the string that you are planning to use.. Run the string through the hole in the bottom of one of the cups and, on the end of the string that is on the inside of the cup, tie a knot so that the string won’t pull back through. Repeat this on the other cup with the other end of the piece of string. You now have two cups (or tin cans) that are connected by a piece of string. If you pull the cups so that the string is taught, you can hear in one can what is being said in the other can. The sound passes down the string from one person’s voice on one end to the other person’s ear at the other.

The advantage to using a tin can is you can tap it and the sound goes along the string. This is VERY handy for doing Morse Code or for getting the attention of the person at the other end!

Morse Code

Radio Telegraph

Every kid should know a little about Morse code. This language was devised so that messages could be sent using a Telegraph machine. You see, long before there were phones, people would send messages using a machine called a Telegraph which could make only two sounds: a short beep, which they called a dot, and a long beep which they called a dash. By using these two sounds in sequence, they communicated using Morse code. You can, too.

Morse Code

The absolutely, positively most important thing to know in Morse code is S.O.S. If you learn nothing else, you should learn these two letters. This is critical information for every kid and every Adult. Dot dot dot, dash dash dash, dot dot dot. If you are tapping it to someone it’s three short taps, pause, three long taps, pause, three short taps. Go on and give it a try. This has become the international symbol for help.
A good game to play is hangman using Morse code. Yes it’s difficult but it’s fun and good practice. Give it a try and see how much fun it can be.