GEEK ART - GEEK ART

	How Do Nerf Blasters Work?
	You probably didn't grow up playing Nerf blasters, though you've got to admit, you would have loved to. The foam made darts, balls, and arrows are powered by just compressed air. The Engineer Guy is here to explain the science behind the Nerf Blaste...
	This Is How Touchscreens Actually Work [VIDEO]
	Ever wondered how touchscreens work? Every screen these days is a touchscreen, and if you didn't already know how it works, Greg Foot is here to describe how they do.
	How Blood Works [VIDEO]
	How does blood work? This short video here crams a lot of science into a short amount of time, and has everything you need to know about the red stuff. Check it out after the jump:[The Medicine Journal via Today I Found Out]