Wish I had one of these Electronic rulers for my science classes back in elementary school, things would have been a lot easier. The rulers are created by Shay Shaftranek and come with a digital read out of the point of the pencil from start to finish.

These are great for those who hate math because the ruler solves all those problems. Just touch the point move along the ruler and read the length, simple as that.

(Via Likecool)