Earth's "ear" Probes For Sound
From Universe China Economic
Summary | It takes half an hour to make one circuit of its
1600-meter-circumference.Each is an equilateral triangle with a
side length of 11 meters.Bigger radio tel opes are badly
needed.Engineer Zhu Boqin worked on the selection more than 20
years ago.It was home to 65 people in 12 families in a closed
world called "Green Water Village".With no electricity, the ...
en.ce.cn | 31 July 2015