Does the Uncertainty principle tell us that one person can only measure a single particle, no matter what area or distance he tries to measure another from?

 

Why doesn't this apply to other people, why can two people both view two different particles?

By measure (observe) a particle you mean measure its properties. The uncertianty principle does not stop you observing more than one particle at a time.

 

Think about a Helium atom. We have two electrons in orbit around the nucleus. We can still measure the spectrum.

what do you mean by the spectrum?

what do you mean by the spectrum?

 

The electron shells, indirectly by the emission of photons.

The electron shells, indirectly by the emission of photons.

 

Ok, thank you.