ｐａｔｚｒ ｒａｄｉｏ ｏｎｅ ｈｕｎｄｒｅｄ ａｎｄ ｓｅｖｅｎｔｙ－ｔｈｒｅｅ－ａ - untitled [200hz (approx)]

episode one hundred and seventy three-a - In statics with free surface, the center of gravity can move and change the ...