Abstract: The transit technique can tell us more about the radius of the planets. Using high precision light curves from the Kepler Space mission, we will be able to have a glance at their current dynamical properties and cast clues on their evolution history. I will introduce the technique of measuring the orbit obliquity of a planet using the gravity darkening effect and using the planet oblateness signature to study their current rotational status. In the end, I will demonstrate these techniques using the ecent discoveries me and my collaborators made, including a long period oblique KOI and the first detection of an oblate planet.