Nuclear missile launching capability remains a top commitment for the Navy as it looks ahead to deployment of the new generation of launch submarines, said Adm. Michael Gilday, chief of naval operations. "By the time we get the Columbia into the water, the Ohio class is going to be about 40 years old," Gilday said.
Inserts that mimic beaver dams are being stacked in Franklin County, Ohio, streams as a cost-effective way to improve stream health. The inserts also tame riverbank erosion and create pools that are beneficial to wildlife.
Runoff from construction projects had posed a major problem in the D'Olive Creek watershed in Baldwin County, Ala., but now the area is a model for how erosion can be contained. The Mobile Bay National Estuary Program, local governments and other organizations focused on the use of natural materials such as rock, wood and living plants while eschewing hard solutions such as concrete and steel.
The mangroves that offer valuable buffering against coastal storms can also absorb carbon, according to new research published in the journal Global Change Biology. However, mangroves are now threatened by rising seas and deforestation.
Soil erosion and desertification in Nigeria pose the single greatest threat to the nation's food security, according to soil science professor Bashr Raji. "[T]here is no community in Nigeria that are spared of one form of soil erosion or the other," he says.
Communication, self-confidence, humility, resilience and empathy are important soft skills for engineers seeking to advance in their careers. It's also important for engineers to avoid jargon and embrace brand identity.
Experienced engineers and a new generation of engineering professionals can work together to help factories make the transition to a digital future, writes Peter Fischbach, industry segment manager for Bosch Rexroth US. He reviews a series of steps engineers can take, starting with applying lean principles and identifying where new technology can bring the most value.
The majority of the US Air Force fleet dates back to the Cold War and replacement parts come at an extreme cost, but 3D printing of parts -- such as F-15 longerons and C-5 gasket handles -- has become a more affordable option. While scientists continue to explore new techniques, the military has scheduled the Air Force Advanced Manufacturing Olympics next July, where experts can compete to solve challenges.