One of the ways that companies test new product concepts is by building physical prototypes and letting users try them. Seenu Srinivasan, a Stanford Business School professor of marketing and management science, thinks that virtual prototypes created online might make more sense than physical prototypes for some companies. His research indicates that virtual prototypes provide nearly the same results as physical prototypes. He quickly adds that virtual prototypes are often much less expensive to build and test than their physical protocounterparts. "The Web reduces the uncertainty in new product introduction by allowing product testing of more ideas in parallel," says Srinivasan. He worked with a bicycle pump manufacture that compared a new pump design against competitive designs. They found that the virtual prototype worked as well as the physical prototypes when predicting which design would be most successful. However, Srinivasan also says virtual prototypes are not perfect. "It remains to be seen which goods are best suited to virtual visual testing." For more information, go to www.gsb.stanford.edu.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
A group of researchers at the Seoul National University have discovered a way to take material from cigarette butts and turn it into a carbon-based material that’s ideal for storing energy and creating a powerful supercapacitor.
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