GE hosted a contest to make super-short science videos for Vine and the results feature some really clever, nifty little clips.
The downside: This compilation is more than 4 minutes of 6-second videos.
After a little while, the individual clips lose some of their punch. Plus, with just 6 seconds (and no explanatory interstitials) there are inevitably some Vines where what's going on is not going to be clear to everybody. And, unfortunately, GE doesn't seem to take the time to explain.
I did want to post this, though, because I'm loving the way some of the entrants used the medium. Overall, I'd say that science Vines are a really cool idea with a lot of potential, but that maybe don't work so well as a giant mashup.