Science Literacy Week UPEI and PEI Public Library Service Public lectures on Science, Creativity and Innovation featuring:   September 22nd, 7 pm at Summerside Rotary Library Cancer cells make sounds: who is listening? Dr. Bill Whelan Detecting cancer at its earliest stage is a significant challenge. A new approach to cancer imaging involves a great deal of listening. When you shine pulsed laser light on cancer cells, they can emit a symphony of sounds. The pitch or frequency of the sound created depends on the size and shape of the cell and the sound volume depends on its color. By listening to and studying the sounds, one can differentiate between normal and cancerous tissues. This is a breakthrough in medical imaging that is positioned to improve cancer management.   For more Science Literacy Week events, see the complete schedule.