- In this experiment we will try to explain to you how to speak with someone by two packs of yoghurt and thread cassette
Or wool and promises without raising the voice sulfur not disturb others
first brought two packs of yoghurt empty then we making a small hole in the middle of the lower base for them and then we connect
String lute and sulfur and in the hole that Ahdtnah and walked away a person a person b because it requires
Be the two are far from each other and must be extended until thread