But Frank married Lillian when he was 36, after he had done much of his time-and-motion work and years after he had set up his own engineering consulting business.

Now, a team of Michigan researchers may have finally solved the battery problem by demonstrating an energy scavenger that derives power straight from the insects own wing motion.

Other tech brands such as Dell , Acer and BlackBerry maker Research in Motion have all also jumped on the tablet PC bandwagon, having unveiled their own versions of the mobile device.