Nice Iphone app, stethoscope replacement!

http://blogs.physicstoday.org/newspicks/2010/09/istethoscope-app-replacing-rea.html

Hold your iphone up to your chest for a few seconds and the mic records heartbeat and displays it on a screen, more accurate than any stethoscope! I imagine you could email the results to a doctor if you are not an EMT or whatever. Great idea!

Originally posted by sonhouse
http://blogs.physicstoday.org/newspicks/2010/09/istethoscope-app-replacing-rea.html

Hold your iphone up to your chest for a few seconds and the mic records heartbeat and displays it on a screen, more accurate than any stethoscope! I imagine you could email the results to a doctor if you are not an EMT or whatever. Great idea!

The article says something about using the camera and motion sensor. Did they get it wrong?

Originally posted by twhitehead
The article says something about using the camera and motion sensor. Did they get it wrong?

I think the motion sensor is used to signal the phone that it is looking at a heartbeat. I think they did get it wrong about using the camera because there is no image to record in the real world, it's data that gets transformed to a graph, at least that's what it looks like from the photo. They may use the camera electronics to capture the graph but only electronically.