• on Education & Information
  • Published in issue 10/2013 on page 60
About the article

Negative Energy

(Dot Labs section)

Negative Energy
It just so happened that on the last visit to my in-laws their electric doorbell had just stopped working. It is a wireless type I installed around two years ago at their side entrance which never gets much use. The curious thing is that I remember replacing the batteries just two months ago. What's going on?
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