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Move over 3D printing, here comes 3D painting. 

The future you dreamt of when you were a little kid is here. Google recently released something called the "Tilt Brush," which essentially allows you to paint 3D structures in the air using a virtual reality headset. According to the Tilt Brush website, "Tilt Brush lets you paint in 3D space with virtual reality. Your room is your canvas. Your palette is your imagination. The possibilities are endless." If you think that sounds intriguing, just watch it in action in the video below.