tag:blogger.com,1999:blog-1195329121901897762.post3479146454128162880..comments2018-03-08T03:20:00.181-08:00Comments on Physics for my Mom: What is the nature of light?Hughhttp://www.blogger.com/profile/07207142714575405001noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-1195329121901897762.post-37390848751562836912009-03-23T15:14:00.000-07:002009-03-23T15:14:00.000-07:00Someone - not me - could do a great riff on the fa...Someone - not me - could do a great riff on the fact that physicists (eg you) are so shocked that light can be two things at once! A wave and photon, not either/or. Which philosopher pursued that subject? I know this is totally simplistic, but it's fun all the same. Your "eureka" moment. I'd like more on "macroscopic intuition" too.Momnoreply@blogger.comtag:blogger.com,1999:blog-1195329121901897762.post-50698434772758650882009-03-22T19:22:00.000-07:002009-03-22T19:22:00.000-07:00That's the weird thing about quantum mechanics and...That's the weird thing about quantum mechanics and why this is so incredible. One way to think about it that may help is thinking about paths. The photon travels from the light source to the screen - imagine that the photon "samples" every possible path from the source to the screen with different probabilities. So one path goes through one slit, and another path goes through the second slit. And there are an infinite number of other paths that wind around in crazy ways before passing through one slit or the other and reaching the screen. The probability associated with most of these paths is so small as to be negligible, but there is a large component that goes through both slits. It's completely alien to our macroscopic intuition, but that turns out to be the way it is.Hughhttps://www.blogger.com/profile/07207142714575405001noreply@blogger.comtag:blogger.com,1999:blog-1195329121901897762.post-8436264537960274382009-03-17T22:00:00.000-07:002009-03-17T22:00:00.000-07:00unrelated: is time travel possible?this is all bec...unrelated: is time travel possible?<BR/><BR/>this is all becoming clearer to me. <BR/><BR/>it doesn't make sense that a single photon would go through bot slits, that's as small as it can get right?. why does that happen?GwinTheEskimohttps://www.blogger.com/profile/10006067606119612790noreply@blogger.com