The science of keeping in touch - image  on https://www.johncolet.nsw.edu.au

The science of keeping in touch

The science of keeping in touch - image phonescience-blog1 on https://www.johncolet.nsw.edu.au

4th class studied the telephone in Science recently. We looked at the basic inner components of a telephone.

We all got to try making a call on a brick   analog phone from the late 1980s. We also made simple telephones out of string and plastic cups.  Headmaster even had a go and they worked surprisingly well.
The science of keeping in touch - image phonescience-blog2 on https://www.johncolet.nsw.edu.au 
The science of keeping in touch - image phonescience-blog3 on https://www.johncolet.nsw.edu.au