TechnologyPneumatic computer uses pressure instead of electricity A computer chip made of glass and silicone holds liquids that move from one side of the chip to the other in reaction to pressure changes. This has been used to control and automate miniaturised biochemistry experiments 51¶¯Âþ
PhysicsWhy virtual particles don’t exist but do explain reality – for now So-called virtual particles aren't particles at all. Some argue that they are merely mathematical figments, and that we need to find a better way to understand particle interactions Features