Modifiche

We measured several times (at least 10) both the weight when the pen is loaded and when the pen is unloaded. From the various measurements, the weight for a loaded and unloaded pen was obtained by calculating average and standard deviation. There is no point in using the highest value, the perfect filling does not exist, what is an indication of how much in ordinary use the pen actually charges, is the average.

We measured several times (at least 10) the weight both when the pen is loaded and when the pen is unloaded. From the various measurements the weight for a loaded and unloaded pen was obtained by calculating average and standard deviation. There is no point in using the highest value, the perfect filling does not exist, what is an indication of how much in ordinary use the pen actually charges, is the average.