A method and system for detecting gravitational anomalies comprises measuring surface structures, measuring gravitational field characteristics, and estimating the effect of the surface structures on the gravitational measurements. The machine has a stationary flow head located above a turntable with molds mounted on carriages. The switch MOSFET includes a LOCOS oxide film formed on the high-resistance substrate, the LOCOS oxide film being sandwiched between trenches and thus having a mesa-shape in its upper part. Also incorporated is a system for playing a game. Furthermore, it is preferred that the at least one auxiliary illuminant is designed as a LED-luminaire.