Nasa tests shape memory alloy for foldable aircraft wings during flight

Nasa tests shape memory alloy for foldable aircraft wings during flight

Nasa tested a new lightweight alloy to fold the outer portions of aircraft wings during flight. The alloy is a shape-memory material, and is triggered by controlling the temperature, moving the outer wings up or down. Having flexible wings could make flights more aerodynamic for both subsonic and supersonic aircraft. Jan 22, 2018
US President Donald Trump

What happens in a US government shutdown?

In shutdowns, nonessential government employees are furloughed and workers deemed essential, including those dealing with public safety and national security, keep working. Jan 20, 2018