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To counter the trend of growing disinterest in science and technology among children, Atsugi City, Kanagawa Prefecture, where Anritsu maintains its head office, holds the Fun Science Laboratory in the cooperation with local enterprises and universities. Anritsu participates in this activity and has been holding it since 2007 with its employees serving as teachers.
The Fun Science Laboratory at Atsugi Municipal Iiyama Elementary School in March 2009 featured the topic, “The Mechanism of a Battery.” To attract the interest of students, we selected a “human battery”experiment as the centerpiece of the event with the cooperation of Sanyo Electric Co., Ltd.
A battery can be made with two kinds of metal and an electricity-conducting liquid (electrolyte). The experiment aimed at powering an electronic music box using tinfoil, a spoon and salt water, with students serving as a part of the battery.

Norio Aizawa of Anritsu Networks Co., Ltd. was present on the platform of Iiyama Elementary School to lead the experiment. After explaining the mechanism of a battery, he moved on to the experiment. Students sat divided into groups around desks, placing their left hands, moistened with salt water, on tinfoil and holding spoons in their right hands. The preparations were completed with a student connecting a spoon to the positive pole of the lead of the music box and touching the negative pole with the tinfoil. On a signal, everyone used their spoons to touch the tinfoil at their right. The tune from the music box confirmed the experiment's success.
Once experiencing this initial sense of achievement, students who had found the experiment puzzling continued experimenting with a variety of ideas and modifications. They were so excited that they wanted more time to test their ideas.
Students subsequently sent letters describing how interesting the experiment had been and their excitement when the music box began to play, showing that a battery's mechanism could be learned about in an enjoyable way.
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