Because the experiments I've shown you so far were done with a camera, a high-speed camera, that can record video about a 100 times faster than most cell phones, but we've also found a way to use this technique with more regular cameras, and we do that by taking advantage of what's called a rolling shutter.
För alla experiment som jag har visat hittills gjordes med höghastighetskamera, som kan spela in runt 100 gånger snabbare än de flesta mobiler. Men vi hittade ett sätt att använda metoden med vanliga kameror, genom att utnyttja så kallade rullande slutare.