4 ms·
> Because just observing the polarity changes it, so you can never be sure what position it was in originally. That does put a crimp in my universal router pla
by n3rdy 14y ago
> Because just observing the polarity changes it, so you can never be sure what position it was in originally.
That does put a crimp in my universal router plans, but that's really interesting by itself that just looking at the atom affects its polarity.
- gambiting 14y agoWell it does not _really_ change the polarity. Think about it this way: You have two cards(A and B) - you and your friend pick one randomly. Until you look at yours, it's both A and B at the same time. It's the same with your friend's card. So you both own cards that are in a "mixed" A/B state. And then, when you and your friend look at them, the state is "decided". Therefore, you could send your friend and his card on a rocket million years away from Earth, and then look at the card. Then,you can tell with 100% guarantee which card your friend has. Is that information useful? No,not really. You were able to instantaneously find out the state of an object millions of light years away,but you can't use it to communicate.