Once upon a time in the Soviet Union did not have cell phones, GPS, and computers with dual-core processor. But were the atomic beacon, illuminating the shore of the Arctic Ocean. For these lighthouses was a limited-edition miniature nuclear reactors, which have been on these lighthouses have successfully installed and running. After the collapse of the Soviet Union, as usual, all these objects were scored and all the equipment and valuable materials were separated (including reactors), leaving what was left.