The petite size naturally means a smaller internal battery (rated for 4.5 hours, compared to the original's six), but JayBird let us know that the Sprint is acoustically identical to the JF3.
The thermoacoustic Stirling heat engines developed by the LANL scientists work by creating intense acoustic energy that can be used directly in acoustically powered refrigerators or to generate electricity.
Now, from the dense, reverberant dance grind of "Heavy" to the gentle "Dandy Life" and the acoustically brooding "Needs, " the band's fourth album sustains the band's commitment to rock and electric guitars.
Despite its acoustically friendly elements, Ms. Racette and Ms. Clayton wanted their house to be very different from the over-the-top opera sets in which they spend much of their time.