Abacus lessons with Benny Ho and Sook-Yin Lee

This week, Sook-Yin hit the streets and went to Chinatown to meet up with abacus enthusiast Benny Ho. He teaches her how to operate the ancient 'acoustic' calculator and reveals its surprising other uses! Click the video above to watch, and tune in to DNTO at 1:30pm on CBC Radio One.