Precision here implies repetition of measurement to minimize deviation of the average result of the measurements from the expected value of physics quantity. Such deviation is normally caused by random (stochastic) errors. Nonetheless, this average value may still appreciably … Continue reading
About irreversible processes… The everyday experience seems to tell us that time differs from the spatial dimensions on having a direction from the past to the future. Therefore, in the first half of the XX century, Arthur Edington has introduced … Continue reading
On a pleasant discovery The discovery of the fourth kind of quarks named charmed (or c) quark in 1974 has suggested this isn’t all and reinforced the belief that there should be at least two another kinds of heavy quarks … Continue reading