It's a solid-state phase rectification modulator. Back in the old
days, they put one in every house. It regulated the electrical
current so that the space-time continuum would stay constant. Then
they found out it was supposed to be warped, so they quit using them.


After being discarded from this former use, an avid green recycling nut
found an alternative use for domestic door bells!

And they were everafter known as the "Bose-Einstein Ding-Dongs".

-T.E.S.