If I understand correctly, the uncertainty principle works, because in order to measure the position accurately, you need a smaller wavelength. But observing with a particle with smaller wavelength means observing with a particle with larger momentum. Therefore, when the observation is made by hitting the thing you want to observe with the observing particle, the more precise the measurement of position is, the observed thing is hit with a larger momentum, making the momentum of the observed larger, or in other words, uncertain. (I'm also not sure if my usage of the word "uncertain" is proper.) But how can you make a position of measurement precise, if what is observed gets a big momentum kick? Is it that although the observed thing's momentum becomes large/uncertain AFTER the observation is made, it is still the value before it is hit by the observing particle AT THE VERY INSTANT the observation is made?