The destroyer USS Fitzgerald could be on its way via heavy-lift ship to the US as early as September for extensive repairs after its June collision with a merchant vessel off the coast of Japan. Work is expected to be carried out on the West Coast, with a Navy solicitation naming two shipyards that build this vessel class.
The Navy hasn't given up on its Littoral Combat Ships, even though the vessels are due to be succeeded by better-armed frigates. Far from falling into disuse, the LCS fleet is now being equipped with short- and long-range missiles and bigger guns to maintain relevance in a world of changing threats.
Cmdr. Tobias Reid has succeeded Cmdr. Patrick Culver in command of the Astoria, Ore.-based US Coast Guard cutter Alert. Culver was in the post for two years; Reid comes to the job from his role as executive officer aboard the cutter Hamilton in South Carolina.
An $840,000 federal grant spread over three years will be used to address erosion along Wisconsin's Lake Michigan shoreline that now affects homes, beaches and harbors. The funds will be used for planning purposes as communities examine proposed solutions.
The US Army Corps of Engineers plans to build a 750-foot terminal groin in North Carolina's Ocean Isle Beach to mitigate erosion. The Southern Environmental Law Center has filed a lawsuit, contending that the corps failed to properly investigate alternatives.
Stormwater runoff and resulting waterway pollution in the District of Columbia are getting federal attention with a $3.5 million grant from the Environmental Protection Agency. Among other things, the funds will be used to apply low-impact development techniques in streets draining into Oregon Avenue and to outfalls into Pinehurst and Rock creeks.
Frequent and intense rainfall in the Northeast will likely only worsen in coming years, further straining aged sewage systems, these authors write. The solution may lie with green infrastructure that filters the stormwater while cooling the environment and curbing floods.
A system of canals, dams and seminatural ponds treating wastewater that flows into the Fuente de Piedra salt lake in southern Spain is effective, a study concludes. The system of structures and resulting wetlands with acceptable water quality encourages a wide variety of flora and fauna, the study states, and should be duplicated elsewhere.
Robotic-assist devices developed over the years are helping paralysis victims live more normal lives and now are beginning to transform manufacturing. Exoskeletons and exosuits give workers a boost in strength and endurance and can reduce disabling injuries from repetitive tasks and overwork.
A microprocessor, a 3D printer, sound transducers, an amplifier and a few other things are all you need to build your own acoustic levitator. Mechanical engineer Asier Marzo and colleagues describe the process they used and note the device, which lets you levitate insects, can also be used "to study physical properties in microgravity."