![Chemistry](/tpl/images/cats/himiya.png)
Imagine you live next door to your best friend. Your bedroom windows face each other, and you want to set up a way to communicate privately using waves. You have these supplies:
a long string
a spring toy long enough to stretch between your windows
metal cans
a Morse code alphabet decoder (Morse code is a system that represents letters of the alphabet with dots and dashes)
You can use as many of these supplies as you want.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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