What's the most popular type of linear actuator? Pneumatic. That's according to a recent survey of Design News readers. Some 57% of the respondents reported that they specify, buy, or approve pneumatic linear actuators. Other top options: Lead-screw driven (48%), belt driven (42%), and hydraulic actuators (42%). What's the most important factor in selecting a particular type of linear actuator or positioning system? Number one answer: That the product meets performance requirements. Vendors take note that pricing was number five on the list.
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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