In the 4th century BC, Greece, the art of painting was often seen as a mere craft, until Pamphilus of Amphipolis came along.

For aspiring artists, the question of improvement often comes down to practice and precision. Figure drawing, long regarded as the cornerstone of artistic training, offers one of the most effective ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Valcamonica, situated in the Lombardy plain, has one of the world's greatest collections of prehistoric petroglyphs – more than 140,000 symbols and figures carved in the rock over a period of 8,000 ...

Francisco Goitia, “Zacatecas Landscape with Hanged Men I” (c. 1914) (courtesy the Philadelphia Museum of Art) Ironically, several artists who created celebrated images of the Mexican Revolution did ...

Online sweepstakes give you the chance to win exciting prizes without spending a dime, from luxury gadgets to unique collectibles. We’ve rounded up the best sweepstakes sites in the US so you can find ...

Systematic evolution of ligands by exponential enrichment (SELEX) is a method used to select and characterize aptamers. These aptamers are powerful molecular recognition agents, akin to antibodies, ...