The production of biofuels starts by growing plants out in a field or forest. All of the biomass represented in those plants essentially comes through photosynthesis.
A hard disk drive contains a circular shiny silver disk, similar to a CD or DVD but much smaller. This disk is coated with a magnetic material, and information is stored by magnetizing very tiny pieces of this surface.
It’s a complicated process, but there are charges inside wires and these charges can be acted on by an electric field. They can move through the wire in something that’s called an electric current.
A broad definition says virtual reality is the idea of combining the physical world and the artificial world in such a way that the two are indistinguishable. How could technology provide all of the sensory sensations or different ways that people see, feel and hear the world such that the artificial and physical are blended together?
Imagine building a robot in three stages.