How do babies learn words? An AI experiment may hold clues
An artificial intelligence model learned words from audio and video of a baby
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Editorial Briefing
Experiments in 4D printing
Jan 2014
Researchers from the Massachusetts Institute of Technology (MIT), in collaboration with industry partners Stratasys and Autodesk, have used 3D printing technology to create objects that can self-assemble into new structures when desired. The process is called 4D printing because its designs involve not just the three physical dimensions but also planned changes over time. The research was led by Skylar Tibbits, director of the Self-Assembly Lab at MIT. Stratasys provided the 3D printer and materials, and Autodesk provided the software for self-assembly and folding design.
Experiments in 4D printing
Editorial Briefing
Simulations of pedestrian behavior applied to traffic management
Jan 2015
The flow of pedestrians through public spaces and thoroughfares is frequently a concern of architects, engineers, and planners, as well as building owners and operation managers, who may want to identify potential traffic bottlenecks, reduce congestion, and improve safety. Commercially available pedestrian software models have become highly useful tools for those purposes: They can simulate and graphically present the movement of individuals, small groups of people, and large crowds for analysis. Simulation models do not provide specific answers to pedestrian traffic problems. Instead, they allow users to test various scenarios to see what approaches might work best. For example, a transportation engineer designing a train platform might run simulations for stairway placement to optimize pedestrian clearance times. See also: Architectural engineering; Computer-aided engineering; Computer graphics; Model theory; Railway engineering; Simulation; Software; Transportation engineering
Simulations of pedestrian behavior applied to traffic management