DRIVING HAZARDS. The summit access road is approximately 10 miles long and has an altitude change of nearly 5,000 feet (1,510 m). There are many sections with a grade of 15 percent.
In simple terms, graphene, is a thin layer of pure carbon; it is a single, tightly packed layer of carbon atoms that are bonded together in a hexagonal honeycomb lattice. In more complex terms, it is an allotrope of carbon in the structure of a plane of sp2 bonded atoms with a molecule bond length of 0.142 nanometres.
Due to its enormous gravity, the hydrogen atoms in the center of the sun are crushed together so tightly that they literally fuse together (the process is called fusion). It is a nuclear reaction which releases a large amount of energy.