The Incredibly Shrinking Radio (IMAGE) U.S. National Science Foundation Caption Over the past century, radio has shrunken dramatically from the wooden "cathedral" style radios of the 1930s to the pocket-sized transistor radios of the 1950s and more recently to the single-chip radios found in cell phones and wireless sensors. Continuing this trend, researchers have further miniaturized the radio by cleverly implementing multiple radio functions with a single component, the carbon nanotube. This nanotube radio is over nineteen orders-of-magnitude smaller than the Philco vacuum tube radio from the 1930s! Credit Courtesy Zettl Research Group, Lawrence Berkeley National Laboratory and University of California at Berkeley. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.