In the first decade of the 20th century, Einstein produced the theory of the conversion of mass into energy, E=mC(2), which was confirmed by laboratory observations. A new theory of the atom was devised by the English physicist Rutherford in 1913.
Methylphenidate, Methylin. Generic Ritalin. Methylphenidate (methylin) is a moderately priced drug used to treat attention-deficit hyperactivity disorder (ADHD). It is also used to treat narcolepsy. This drug is slightly more popular than comparable drugs. It is available in brand and generic versions.
A: Brand name Ritalin (methylphenidate) is manufactured by Novartis Pharmaceuticals Corporation. Ritalin is a stimulant medication that affects the central nervous system. It is used to treat attention deficit hyperactivity disorder (ADHD), attention deficit disorder (ADD), and narcolepsy.Ritalin helps to increase attention and control symptoms such as hyperactivity and impulsiveness.he Food and Drug Administration (FDA) first licensed methylphenidate hydrochloride in 1955 for treating what was formerly known as hyperactivity, attention-deficit disorder or ADD. The drug was commonly prescribed in the 1990s when the diagnosis of ADHD became better known and accepted.