&&.&.&&&&& ...&..&&&.
&.&&&&.... ...&&.&..&
.&&...&... &..&.&&&.&
&&.&..&&.. &&.&&&..&&
..&&&.&.&. &.&&..&.&.
..&..&&&&& .=== batteries ===. .&&.&.&&&&
&.&&.&.... &&.&&&&...
&&&.&&&... batteries may not harm a human or, &.&&...&..
&..&&..&.. through inaction, allow a human being .&&.&..&&.
&&.&.&.&&. to come to harm. &&.&&&.&.&
..&&&&&&.& ..&&..&&&&
&.&.....&& a battery must obey the orders given it ..&.&.&...
&&&&....&. by human beings except where such &.&&&&&&..
&...&...&& orders conflict with the first law. .&&.....&.
&&..&&..&. .&.&....&&
..&.&.&.&& a battery must protect its own .&&&&...&.
..&&&&&&&. existence as long as such protection &&...&..&&
&.&......& does not conflict with the first or &.&..&&.&.
&&&&.....& second laws. &&&&.&.&&&
....&....& &...&&&&..
....&&...& #### .&..&...&.
....&.&..& .&&.&&..&&
&...&&&&.& these things power almost everything, .&.&&.&.&.
&&..&...&& but when i speak about batteries i &&&&.&&&&&
..&.&&..&. speak about standard household ones. ....&&....
..&&&.&.&& think double a, triple a, ....&.&...
..&..&&&&. twentyfive twenty, nine volt, such ....&&&&..
..&&.&...& things... &...&...&.
..&.&&&..& .&..&&..&&
&.&&&..&.& they look slick but are very dirty .&&.&.&.&.
&&&..&.&&& inside. &&.&&&&&&&
...&.&&&.. ..&&......
...&&&..&. ..&.&.....
...&..&.&& &.&&&&....
...&&.&&&. &&&...&...
...&.&&..& ...&..&&..