Newbish questions inbound! Yeah, I have been spending too much time watching NOVA programming--for the children's benefit of course I wish they had that stuff when I was a child! 1.) If C = Speed of ...

Where mass comes from is one of the deepest mysteries of nature. Now a controversial theory suggests that mass comes from the interaction of matter with the quantum vacuum that pervades the universe.

Improvements: diagram of the 3D-printed peristaltic vacuum pump showing the pair of notches and a close-up of one of the rollers. (Courtesy: Luis Fernando Velásquez-García et al) A tiny 3D-printed ...