New light on Leonardo Da Vinci's faces

How did Leonardo Da Vinci manage to paint such perfect faces? For the first time a quantitative chemical analysis has been done on seven paintings from the Louvre Museum (including the Mona Lisa) without extracting any samples.

Researchers reconstruct earliest known composite-tiled roofs

Researchers from Peking University School of Archaeology and Museology collaborated with the Gansu Provincial Institute of Cultural Relics and Archaeology to reconstruct the world's earliest composite-tiled roofs. Their findings ...

Jaw shapes of 90 shark species show evolution driven by habitat

An international research team led by Faviel A. López-Romero from the Department of Paleontology at the University of Vienna investigated how the jaw shape of sharks has changed over the course of evolution. They conclude ...

Super-dense packing of hydrogen molecules on a surface

Hydrogen (H2) is currently discussed as an ideal energy carrier of renewable energies. Hydrogen has the highest gravimetric energy density of all chemical fuels (141 MJ/kg), which is three times higher than gasoline (46 MJ/kg). ...

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