I'm not sure I understand the meaning of the sentence below

Semiconductors, Chapter 2, Page 30

The popular explanations of this “uncertainty principle” was that it was a measurement usually error caused by the process of measurement

 

Looks good to me, but my q-m is weak. http://en.wikipedia.org/wiki/Uncertainty_principle

 

I'm not sure I understand the meaning of the sentence below

Semiconductors, Chapter 2, Page 30

The popular explanations of this “uncertainty principle” was that it was a measurement usually error caused by the process of measurement

You, have found an error. It should read: "error usually caused" in place of "usually error caused".

Thanks for bringing it to our attention. I have listed you in the Contributiors List, Typo's section as Gogs@allaboutciruits.com. I f you would like your real name listed, contact me via private message or email.

I'll fix it in my local copy. In a month or two we will make accumulated changes available online.