Turn your android phone into heart monitoring machine
Cover the lens with your forth finger. Don’t push too hard.
How it works:
It captures the images and compare it with each other. The difference between successive image produces the pattern of your pulse bits. That's nothing but your heart bits.
60-90 pulse is average pulse rate.
Some people thinks it’s prank, but it’s not true. It’s real application. It requires android phone with flash camera.