NUL Students Build a Gadget That Lets You See Your Heartbeat!
Ever wanted to actually see your heartbeat without going to a hospital? No fancy machines. No big bills. Just clip something tiny to your ear or fingers and—boom! —a little light blinks in perfect time with your heart. That’s exactly what Tobatsi Mohlalanyane and Itumeleng Mothibeli, Physics and Computer Science students at the National University […]