Back to school this week. We did a really cool activity - turning on an LED by blinking your eyes. The students used EKG sensors to detect the electrical signal - they put the electrodes around their eyes rather than on their arms like you would for a heart reading. Classes are going well, but it's hard to get anything done in 45 minutes. "Retirement" has slowed me down.Saturday, August 20, 2011
EKG Eye Blink
Back to school this week. We did a really cool activity - turning on an LED by blinking your eyes. The students used EKG sensors to detect the electrical signal - they put the electrodes around their eyes rather than on their arms like you would for a heart reading. Classes are going well, but it's hard to get anything done in 45 minutes. "Retirement" has slowed me down.