A Galilean Experiment Using a Holographic Technique

We have done a Galilean experiment, making use of a holographic technique. The angular accelerations of four freely falling objects were measured in our experiment at the precision of about 10^rad/s^2. From this measurement, the acceleration differences for two compound pairs of an aluminum-copper (Al-Cu) test object and an aluminum-stainless steel (Al-SUS) object in the Earth\u27s gravitational field were obtained at the 10^ level. The results show non-zero acceleration differences for the objects. This could possibly be the results of some systematic errors. However, the method used in this experiment could become a new technique for studing physics with the origin of inertia. PACS 04.90.+e-Other topics in relativity and gravitation. PACS 04.80.+z-Experimental tests of general relativity and observations of gravitational radiation