Wikipedia:Main Page history/2015 April 3

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The skeletal formula of racemic amphetamine

Amphetamine is a potent central nervous system stimulant of the phenethylamine class that is used in the treatment of attention deficit hyperactivity disorder and narcolepsy. It is also used as a performance enhancer and nootropic, and recreationally as an aphrodisiac and euphoriant. Amphetamine increases neurotransmitter activity in the brain, with its most pronounced effects on norepinephrine and dopamine. At therapeutic doses, this causes emotional and cognitive effects such as euphoria, change in libido, increased wakefulness, and improved cognitive control. It induces physical effects such as decreased reaction time, fatigue resistance, and increased muscle strength. Amphetamine exists as two enantiomers, levoamphetamine and dextroamphetamine, and normally refers to an equal parts mixture of the two enantiomers in its free base form. It is a prescription medication in many countries, and unauthorized possession and distribution of amphetamine are often tightly controlled due to the significant health risks associated with uncontrolled or heavy use. (Full article...)

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A portrait illustration of the Anuradhapura cross

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Muhammadu Buhari

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On this day...

April 3: Good Friday (Western Christianity, 2015); Fast of the Firstborn begins at dawn and Passover begins at sunset (Judaism, 2015)

George Marshall

More anniversaries: April 2 April 3 April 4

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From today's featured list

Yash Chopra is standing with his hands in his pockets, and looking away from the camera

One Tamil film and sixty-five Hindi films, including two yet-to-be-released, have been produced by the Indian entertainment company Yash Raj Films. The company was established by Yash Chopra (pictured) in 1970. Yash Raj Films started a film distribution business in 1997, and in addition to distributing their own productions, the company has distributed 34 films from other companies. Yash Raj Films' first release was the Chopra-directed Daag: A Poem of Love (1973). The company's most successful films include Kaala Patthar (1979), Chandni (1989), Dilwale Dulhania Le Jayenge (1995), Veer-Zaara (2004), Ek Tha Tiger (2012), and the three films in the Dhoom franchise (2004–14). In addition to directorial ventures from Yash Chopra and his son, Aditya Chopra, the company has launched several new directors, including Sanjay Gadhvi, Kunal Kohli, Siddharth Anand, and Shaad Ali. The most frequent collaborations of the company have been with the actors Rani Mukerji, Rishi Kapoor, Shah Rukh Khan, and Saif Ali Khan. (Full list...)

Today's featured picture

Christ Crucified

Christ Crucified is an oil painting on canvas completed by Diego Velázquez, likely in 1632. Depicting the Crucifixion of Jesus, it shows a nearly naked Christ nailed to the cross in a contrapposto position. The painting is currently held by the Museo del Prado in Madrid, Spain.

Painting: Diego Velázquez

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