Читать книгу Planning and Executing Credible Experiments - Robert J. Moffat - Страница 33

Always remember as you plan: making a measurement intrudes on the system measured. Ask: How much does the measurement intrusion alter the system? How does measurement affect the accuracy and precision of its results? Furthermore, the intrusion affects the uncertainty of the measurement. A prime motivator for inventing new probes and experimental techniques is the aim to intrude less when taking a measurement. Classic measurement is the focus of this text.

In certain quantum physics experiments, however, mere observation alters the system. In these experiments, if an observation is made the system has one result; if no observation is made the system shows contrary results. These tests have been reproduced worldwide. If you are interested, we recommend Richard Muller's book (Muller 2016). Or search “theory of measurement in physics.”