Hi all! I didn't know where to put this topic but since I thought it's general for all planets and gravitational aspects I put it here. I've made some gravity measurements, some quite simple with a accelerometer on my cellphone with different apps, but also with a good accelerometer several times and got different results day to day at the same spot. I live in southeast Sweden near the coast. I usually get 10.1 m/s2, which is quite "high", but sometimes when I measure I get ~9.8 m/s2 and I'm very exact when I do it. Even though the differences is little notable, I wonder: Is the gravity actually changing, day to day?