Riva Tritone Via, two-engine-yacht, 1958. Ordered by HSH Rainier de Monaco and Grace Kelly. One of 26 ever built. Via rmauctions
1842 Pietro Riva began building boats at Sarnico, Lake Iseo. By the 1930s, the firm was constructing race boats under his grandson. In 1946 Serafino’s son Carlo designed a mahogany runabout, Corsaro, which was modeled after Chris-Craft’s coveted motors that ushered in a new era of yachting elegance. The Tritone, launched in 1950, was an instant success with the European jet set. Source
Artist Jonas Dahlberg has been chosen to create three memorials, one of which cuts a 3.5m slit in the landscape, to remember the victims of Anders Behring Breivik. Read more
Picture: Jonas Dahlberg Studio
Ghosts of Humanlikeness, Nicole Coson
One of the common themes in aerodynamics, especially in sports applications, is that tripping the flow to turbulence can decrease drag compared to maintaining laminar flow. This seems counterintuitive, but only because part of the story is missing. When a fluid flows around a complex shape, there are actually three options: laminar, turbulent, or separated flow. An object’s shape creates pressure forces on the surrounding fluid flow, in some cases causing an increasing, or unfavorable, pressure gradient. When this occurs, fluid, especially the slower-moving fluid near a surface, can struggle to continue flowing in the streamwise flow direction. Consider the video above, in which the flow moves from left to right. Near the surface a turbulent boundary layer is visible, where fluid motion is significantly slower and more random. Occasionally the flow even reverses direction and billows up off the surface. This is separation. Unlike laminar boundary layers, turbulent boundary layers can better resist and recover from flow separation. This is ultimately what makes them preferable when dealing with the aerodynamics of complex objects. (Video credit: A. Hoque)
how do people eat blocks of cheese? that is just so disgusting to me.
i love cheese on stuff, don’t get me wrong but, like, a whole block of cheese???