Normally when a cell battery can no longer power our devices we dispose of them. If waste management systems are in place they may go for recycling. However, even though they are ‘dead’ they can still provide a useful function. What? How can a dead battery power something?

What is the difference between the alarm going off in the morning and getting out of bed? For me it is the snooze time in between. When the alarm goes off I’m still semi-concious and hit the snooze button for extra repose. So the time set on the alarm to get up is not the [...]