Movies portray the pleasure of drivers racing down the road with windows open or the top down, but most people would rather have near silence than the roar that comes with that wind-in-the-hair feeling. That's made sound and vibration testing a more important part of vehicle analysis. It also involves far more engineers.
"Originally, the community of sound and vibration experts was small, but now the number of engineers who need to deal with sound and vibration is growing exponentially," says Gabriella Cerrato Jay, technical director at MTS System Corp.'s software and consulting group. As more drivers expect to mimic the sound quality they're used to at home, stereo systems and voice recognition for hands-free phone calls will become more common. To help engineers find information about their noise and vibration issues, Jay has started a blog that includes technical articles on various topics, not all of them automotive. Several other experts in sound and vibration analysis also post to http://rbi.ims.ca/4398-534. MTS engineers blog about the topic at http://rbi.ims.ca/4398-535.
Artificially created metamaterials are already appearing in niche applications like electronics, communications, and defense, says a new report from Lux Research. How quickly they become mainstream depends on cost-effective manufacturing methods, which will include additive manufacturing.
Sharon Glotzer and David Pine are hoping to create the first liquid hard drive with liquid nanoparticles that can store 1TB per teaspoon. They aren't the first to find potential data stores, as Harvard researchers have stored 700 TB inside a gram of DNA.
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