Category Archives: Science & Tech

Additive manufacturing: 3D printers and much more


In today’s manufacturing world, 3D printers (3DP) bring a lot of buzz to product announcements, trade shows and Kickstarter challenges. Ditto for the tech geek space.

But the breathless push for a 3D printer in every home, like the 70s quest for a computer on every desk, may detract from the real industrial revolution in additive manufacturing (AM). Continue reading

Turning Trash into Electricity

Recently I had the opportunity to tour the Covanta “waste-to-energy” facility in Montgomery County, Md., where I saw first-hand how one county’s trash is converted to electrical power, economically and practically pollution-free.

Montgomery County’s 1,800 tons of garbage per day are collected at a transfer station and shipped to the Resource Recovery Facility (RRF) in huge rectangular steel waste containers loaded onto rail cars. These cars, on a dedicated rail line, pass through radiation detectors to prevent contamination from radioactive sources in discarded medical equipment or industrial gauges. Continue reading