Why do electric plugs have holes?
Episodio 2 min 3s

Why do electric plugs have holes?

Da BrainStuff iHeartPodcasts
You might have noticed that plugs for electric appliances have two holes. There are three reasons for these apertures -- find out what they are in this podcast from HowStuffWorks.com.

Discussione della community

Ancora nessun post

Sii il primo ad aprire la conversazione su Why do electric plugs have holes?