Cowbirds are special among songbirds for the "watery" timbre of their singing, which resembles the sound of falling droplets striking water, a quick burst followed by a fading ripple. Subscribe to our ...

This blue-glowing water is being spun around by nothing but sound waves. Reaching speeds up to 6,000 RPM, this centrifuge forms the basis for a new type of inexpensive, point-of-care biomedical test.