Marvellous metrics

Richardson's Marvellous Forecast

Leonardo da Vinci. The marvellous works of nature and man

The title of this beautifully-produced book gives the key to its content. Giambattista Venturi in 1797 was the first to emphasize the scientific importance of Leonardo's studies of the works of nature. During the following century, there was a vague, exaggerated admiration of Leonardo's achievements in science. However, the artistic side of Leonardo's activity, though so small in quantity, was ...

Phosphoramidites: marvellous ligands in catalytic asymmetric conjugate addition.

The development of an efficient catalytic system for enantioselective carbon-carbon bond formation by 1,4-addition of organometallic reagents (organolithium, Grignard, and organozinc reagents) to enones is a major challenge in organic synthesis. This Account presents the breakthrough realized in this field using chiral phosphoramidite ligands for copper-catalyzed dialkylzinc additions. Applicat...

Archaic man meets a marvellous automaton: posthumanism, social robots, archetypes.

Posthumanism is associated with critical explorations of how new technologies are rewriting our understanding of what it means to be human and how they might alter human existence itself. Intersections with analytical psychology vary depending on which technologies are held in focus. Social robotics promises to populate everyday settings with entities that have populated the imagination for mil...

On C3-Like Finsler Metrics

In this paper, we study the class of of C3-like Finsler metrics which contains the class of semi-C-reducible Finsler metric. We find a condition on C3-like metrics under which the notions of Landsberg curvature and mean Landsberg curvature are equivalent.