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.
BRAND NAME: Ritalin, Ritalin SR, Ritalin LA, Concerta, Methylin, Methylin ER, Daytrana, Quillivant XR Metadate CD, Metadate ER.