Sponsored link:

A chain of dominoes of increasing size makes a kind of mechanical chain reaction that starts with a tiny push and knocks down an impressively large domino.  
Original idea by Lorne Whitehead, American Journal of Physics, Vol. 51, page 182 (1983)

Flixxy editors search the internet daily, to find the very best videos for you:   SELECTION:  From over 3 million videos uploaded to YouTube daily, we select only a few videos to be added to the site daily.   PG RATING:  Flixxy videos and comments are all PG rated. They are "Safe For All Ages" and "Safe For Work".  Our content is uplifting.   SELECTED START AND END POINTS: Many of Flixxy’s videos start late or end early. We skip lengthy introductions and get to the point.   CONCISE CAPTION AND DESCRIPTION: We don't use "click-bait."  Your time is valuable, so we distill the information down to what you want to know.
FREE DAILY NEWSLETTER: Get the latest videos delivered to your inbox by subscribing to the FREE "Video of the Day" newsletter.