Video encyclopedia

Flashback calendar

Muslim physicist dies

Pakistani theoretical physicist Abdus Salam died. He made major contribution to unification of two fundamental forces: the weak force and the electromagnetic force. Salam predicted the existence of new important particles, Z and W bosons (Americans Steven Weinberg and Sheldon Lee Glashow came to same conclusion). The bosons were discovered in 1983.

Human ancestor hoax

So called Piltdown man was exposed as a fraud. Presumed human fossil was discovered in 1911 by amateur archaeologist Charles Dawson near Piltdown in East Sussex. The species was officially named Eoanthropus dawsoni and considered a 500.000 years old human ancestor. But it was a piece of human skull with the jaw of an orangutan and chimpanzee tooth.

Sound recorder

Sound recording and reproduction is an electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording.

Creator of the robotic duck dies

French inventor and artist Jacques de Vaucanson died. He was very interested in automata. He designed automatic flute and tambourine player. They were able to play twelve songs. His most famous creation is a robotic duck. Jacques de Vaucanson also designed first automatic loom. But this invention was not taken up.

Anniversaries of famous

died 1970

C. V. Raman

died 1996

Abdus Salam

born 1980

Nikolai Durov