Model 725DA valve provides dispensing of medium- to high-viscosity fluids such as epoxies, lubricants, RTVs, solder masks, and brazing pastes. A piston stroke adjustment provides adjustable fluid-flow and snuff-back control. The valves can be used for tens of millions of cycles with minimal maintenance, and have no seals to wear out and leak. Instead an inert polyethylene diaphragm isolates the valve's actuator from its wetted components.
EFD Dispense Valve Systems, 977 Waterman Ave., East Providence, RI 02914, FAX (401) 431-0237.
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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