- 1). Roll each lime firmly against a table -- or between your palms -- to make the juice inside flow.
- 2). Insert a galvanized nail halfway into each lime. Clean the copper strips with a small piece of sandpaper. Insert a copper strip halfway into each lime, no more than an inch from the galvanized nail. Don’t allow the metals to touch inside the limes.
- 3). Connect the galvanized nail in one lime to the copper strip in the other.
- 4). Clip one end of a wire to the free copper strip in one lime. Clip one end of the other wire to the free galvanized nail in the other lime.
- 5). Remove the battery from the LCD clock, if necessary. Attach the wire from the copper strip to the clock’s positive (+) terminal. Attach the wire from the galvanized nail to the negative (-) terminal. The clock display should light up within a few seconds.
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