Vine videos are only 6 seconds long. You record by pressing the surface of your smartphone, then releasing when you want the app to stop recording. By quickly pressing and releasing, over and over again, you can record a lengthy event in segments.
Ian Padgham has developed this new medium into an art form. He brought that skill home in this video of his wife Claire Pasquier during her 9 months of pregnancy. Every month, he recorded her for 2 frames.
He should take this same approach as his child grows up. They do, after all, grow up so quickly.