MIT: Bottle coating speeds up ketchup pouring

I don't know that leftover ketchup in bottles is one of our society's greatest problems, but I certainly understand that being able to get all the food out of all of its containers would reduce food waste by a a few teaspoons per jar which would add up to a significant savings when added up.

Plus there's the fact that watching ketchup (I'm not going to type catsup, it bugs me) just glide out of the bottle is phenomenally cool.