Darwin and Newts learn about sound and vibration when Newts becomes obsessed with drumming. Darwin takes what they've learned to make a home-made telephone.
Broadcast In: English Duration: 0:11:02
Darwin and Newts learn about sound and vibration when Newts becomes obsessed with drumming. Darwin takes what they've learned to make a home-made telephone.
Broadcast In: English Duration: 0:11:02