that s a shock and having a hand under us try out the new techniques on themselves in the hope of better understanding their own emotions. the key to the smart ass is a generous scope a kind of compass for movement. this period is called bio glass and i m going to show you how motion sensors inside google glass can capture a very subtle motions of your body with a beating of the heart or a spirit. so what you re going to see now is how we had in this other motion to say with the beating of the heart and here on the top we can see the life scope data gyroscope is a sense of a pure capture that they show of the head and here on the bottom graph we are computing your heart rate and we have that basic amplify in better subtle body motions to estimate the frequency of these do the ring of your head and estimate your heart rate. these psychological de sac contain information about our stress