In most cases, back pain will improve in a few weeks or months, although some people experience long-term pain or pain that keeps coming back. Types of back pain Backache is most common in the lower back ('lumbago'), although it can be felt anywhere along your spine, from your neck down to your hips.
Graphene is made of a single layer of carbon atoms that are bonded together in a repeating pattern of hexagons. Graphene is one million times thinner than paper; so thin that it is actually considered two dimensional. Carbon is an incredibly versatile element.
Graphene looks like atomic-scale chicken wire made up of carbon atoms and their bonds. The carbon-carbon bond length in graphene is about 0.142 nm. Graphene is the basic structural element of several carbon allotropes including graphite, carbon nanotubes and fullerenes. Many sheets of graphene stacked together are collectively called graphite.