Thousand Year Flasher

This one's a technical post. An electronic circuit I designed. It is a LED flasher which will flash for one-thousand years off high-capacity AA batteries. At least, theoretically (the batteries are likely to corrode or degrade in time). But think on it: your descendants could enjoy the Thousand Year Flasher through many generations. OBSERVATION: One could solder the batteries to the circuit, and encapsulate it in plastic, for longevity.