Entrepreneurs selling plywood made some quick bucks in advance of Hurricane Ike, but a better option for homeowners may be temporary polycarbonate glazing. The newest product from SABIC Innovative Plastics is Lexan LTH3T16 sheet, a 5/8-inch-thick, fluted polycarbonate storm panel targeted for use on windows and doors. It is said to be four times stronger than half-inch plywood sheet and offers 250 times higher impact resistance than glass and 30 times the impact strength of acrylic of the same thickness. The sheet can be easily cut to size using conventional power tools to cover windows and doors. The PC lets in light and can be left on for the duration of a hurricane season.
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
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