Significance of Uncertainty Principle in Daily Life

It should be borne in mind that the uncertainty is not due to lack of sufficiently refined techniques but it is due to the fact that one cannot observe microscopic things without disturbing them. No instrument can observe the position of an electron without affecting its motion. In other words, uncertainty principle is the fundamental limitation of nature. Thus, one cannot design an experiment to obtain an accurate value of both the position and momentum for microscopic objects. However, in daily life, this principle has no significance. This is because one comes across only large objects, (the objects which can be observed with naked eye), without altering their motion. The position and velocity of these objects can be determined accurately because in these cases, during the interaction between the object and the measuring device, the changes in position and velocity are negligible.