Last updated July 3, 2018 at 9:13 am
Topics:
Innovate & Tech
What did people do before telephones and the internet? How did they communicate with each other over vast distances?
What you’ll need:
1 x 9 volt battery
1 x 9 volt battery holder*
1 x small buzzer*
1 x wooden peg
2 x pieces of Aluminium foil
*available to purchase online, or from an electronics store (e.g. Jaycar)
