Topic:  SI and
xxx: I remember, did on to a lab on the physicist where determination e/m an electron was result. Made, substituted in the formula with coefficient under the textbook of methodics - the error on many orders turns out. I come to the teacher (by the way, it there was the Demidovich-junior, the son of the author of the known textbook on ), I show: here, measured, substituted, the hogwash, and without variants as an instrument scale here it, extreme values are clear, and their range from the necessary value all the same on many orders turns out. looked at the instrument, on the formula, on result, told "wait, please", and left. Returned minutes through 15 joyful:" I found log on which the textbook of methodics prepared - there for constant calculation took value in different systems, a part in SI, a part in ". Therefore kept silent and added -" generally, this log already were going to throw out, the textbook of methodics not first ten years, and it is curious that till today all students with probable digits handed over this operation ".