As most doctors don't know how to use those printers, hospitals need engineers to operate the printers and help convert images from computed tomography and other medical equipment to 3-D data that can be printed out.
Some of the data it gathered about the abundance of phytoplankton - plant-like organisms that convert carbon dioxide into oxygen and provide food for other sea life - could already be monitored by satellite.
Amin Karami, an aerospace engineering research fellow, presented data at the American Heart Association annual conference in November showing an experimental energy harvester can convert the energy from the beating of a heart into enough usable electrical energy to, in theory, operate a pacemaker.