When a fuel burns in plenty of air, it receives enough oxygen for complete combustion. Complete combustion needs a plentiful supply of air so that the elements in the fuel react fully with oxygen. Fuels such as natural gas and petrol contain hydrocarbons. These are compounds of hydrogen and carbon only.
eidolon (plural eidola or eidolons) 1  An image or representation of an idea; a representation of an ideal form; an apparition of some actual or imaginary entity, or of some aspect of reality. 1936, Henry Miller, Black Spring: As a species it is extinct; as an eidolon it retains its corporeality â but only if maintained in a state of equipoise.
Voltaren Gel (diclofenac sodium topical gel) is a topical gel nonsteroidal anti-inflammatory drug (NSAID) used to treat pain of osteoarthritis of joints that are amenable to topical treatment, such the hands and knees.