That is what came to mind as I read a New York Times article entitled: "Bye-Bye Batteries; Radio Waves as a Power-Source." The article is about a safety helmet called “SmartHat” that has a microprocessor and a beeper which use so little electricity that they actually run off of radio waves.
As the article puts it: “The waves come from wireless network transmitters … installed to keep track of their locations. The microprocessor monitors the strength and direction of the radio signal…to determine if the hat’s wearer is too close.”
As the article concludes: “Many electronic devices are limited by batteries that fade away or can’t survive
temperature extremes…‘we are on the cusp of an explosion in small wireless devices” that can run on alternatives to battery power.’”
Think of what this could do for toys and the toy industry?