I love these videos/animations.

Wait, this is super awkward.
This a dupe and Eric3579 pointed out to me.
So, I tried to "isdupe" my own posting and he told me how to kill it.

So I did.
And here it is on the first page.

Not even sure how; so---people are enjoying this unworthy clone--should I leave it or kill it with extreme prejudice (and how did it even escape that fate with a clone???).

Perhaps Sifters will speak and I will follow their wishes.

I think i have this. It was a dupe of your own post. Sifty accidently (broken) double posted your video when you submitted it. This happens occasionally. You killed one and the other was still around and now is doing quite well It was never a dupe of someone's earlier video, but sometimes people will dupe in this situation to deal with the second video. I prefer just killing one of them. Hope that makes sense.

Your killed video is here and you can see its a slightly different url but posted at the same time. http://videosift.com/video/How-do-vending-machines-figure-out-if-coins-are-fake-or-not

I love the video, but object mildly to some of the content.

"pin-point accuracy"? The vending machine isn't sniping someone from 800 yards out. And as for accuracy, why do most machines reject my coins a number of times, but if I slam the coin into the slot, it accepts it just fine?

or how does the vending machine know that half way through a hospital night shift to reject every last coin in your pocket

I can't tell you how many times I've seen a snack get caught leaning against the rack and the glass. How does rotating the coils more help in that situation? Answer: IT DOESN'T! The machines are never taking over the world. They'd be forever awkwardly falling all over themselves trying.

I know what you mean; at the hockey rink I used to skate at, if you "back spun" a rejected quarter as you put it in, somehow that suddenly made it acceptable.

And Canadian coins enjoyed a period of being, uh, "surrogates" for some US coinage successfully.

Inadvertently, of course---but in those days, a 25% discount if I remember correctly.

It's almost that right now. =(

Pretty sure the old ~'50s cigarette vending machines didn't have future lasers and space magnets.

Always keep a nickle with a string tied around it I say.