Atlanta Brain Bee!


We helped out at the Atlanta Brain Bee. Workshop the week before and the day of the competition.

Congratulations to Ranjani Sundaresan from Alpharetta High School for winning first place and going to compete at the National Competition.

Biopotential Amplifiers

You go to the doctors for a checkup – and the first thing that the nurse checks is your heart rate. The box to the right does the exact same – and connects to your iPad! The video (below) is this box in action connected to an oscilloscope. Check out that heart beat! This is an example of a biopotential amplifier that can measure activity from skeletal muscles and the heart.



We demo’d this system at an outreach event to 5th graders at the 4/5 Academy at Fifth Avenue in Decatur, Georgia (pictures below). The box was connected to a student and the iPad was connected to the classroom projector. The students could measure activity from flexed bicep muscles as well as sit still and see their heartbeat.


Here’s a video of it in action!