3 April 2003
Yesterday I recovered a long-lost Hewlett-Packard HP11c calculator. Pressing the power button, it came on instantly and has run without a hiccup ever since. This product had been in a drawer for over 20 years. I have a cell phone that likes to be recharged every 4 hours and it’s becoming greedier about even that frequency.
Here’s news that we may one day recharge our batteries in a completely different manner. From the article is this excerpt: Minteer said the team is working on ways to increase their biofuel cell’s power density. Currently the team’s battery can produce 2 milliwatts of power per effective square centimeter. The average cell phone requires 500 milliwatts to operate.
Filed under: Energy