Renewable energy
A 'Stirling' idea for charging your cell phone
...Phones, iPods, Android phones, and any device that uses a USB charger drawing 1000 mA or less, it's as simple as connecting the onE Puck to your device and setting your drink down.
Your work schedule is unpredictable and you’re always on the go. The only constant part of your day is the daily hot coffee or tea that kee...