Eli5 Why can’t we “know” the speed and position of an electron simultaneously? Why can we only measure one of these properties at a time?

Question

This always confuses me and I’m not sure how it works. Please explain…

In: 252

Answer 1

As others said, if you measure its position you mess up its speed. You can measure how much time it takes for an electron to get from place A to place B, but you can’t measure it at any one place without stopping it. If you measure it in any way, you mess it up.