joi, martie 29, 2012
duminică, martie 25, 2012
vineri, martie 23, 2012
joi, martie 22, 2012
luni, martie 19, 2012
luni, martie 12, 2012
Printing three dimensional objects with very fine details using two-photon lithography can now be achieved orders of magnitude faster than similar devices in a breakthrough by Vienna University of Technology (TU Vienna) researchers.
The 3D printing process uses a liquid resin, which is hardened at precisely the correct spots by a focused laser beam. The focal point of the laser beam is guided through the resin by movable mirrors and leaves behind a hardened line of solid polymer a few hundred nanometers wide.
This fine resolution enables the creation of intricately structured sculptures as tiny as a grain of sand.
miercuri, martie 07, 2012
luni, martie 05, 2012
giant wall of screens — a sort of virtual Rio, rendered in real time. Video streams in from subway stations and major intersections. A sophisticated weather program predicts rainfall across the city. A map glows with the locations of car accidents, power failures and other problems.
This building is the Operations Center of the City of Rio, and its system was designed by I.B.M. at the request of Rio’s mayor, Eduardo Paes. There is nothing quite like it in the world’s other major cities. I.B.M. has created similar data centers elsewhere for single agencies like police departments. But never before has it built a citywide system integrating data from some 30 agencies, all under a single roof. It is the handiwork of an I.B.M. unit called Smarter Cities and, if all goes according to plan, it could lay the groundwork for a multibillion-dollar business.
The project cost Rio about $14 million, Mayor Paes said. If it all works according to plan, it could make Rio a model of data-driven city management.
De ce nu i-ar chema pe cei de la IBM si primaria Bucuresti?
duminică, martie 04, 2012
vineri, martie 02, 2012
these flat-packed homes from Ikea could be just the answer if a place of your own is proving too costly.
The Swedish furniture company, famous for its cheap but quirky products and its army of fans, has launched its first line of prefabricated houses in the U.S., named the Aktiv.