Enlarge Image Seconds count. When a laser beam, pulsing at an average of once every 760 nanoseconds (left), is absorbed by red blood cells, the cells release sound waves that far exceed 100MhZ (right). Credit: Strohm et al., Biophysical Journal (2013) Combining lasers with a principle discovered by Alexander Graham Bell over 100 years ago, researchers have developed a new way to collect high-resolution information about the shape of red blood cells. Because diseases like malaria can alter the shape of the body's cells, the device may provide a way to accurately diagnose various blood disorders. The study relies...