Chimney swifts swoop across the Raleigh skyline in 2011.
Chimney swifts swoop across the Raleigh skyline in 2011. Robert Willett News & Observer file photo
Chimney swifts swoop across the Raleigh skyline in 2011. Robert Willett News & Observer file photo

Chimney swifts: Awesome autumn aviators

September 27, 2015 04:00 PM

More Videos

  • How the Carbon 3D printer works

    This video shows how the Digital Light Synthesis process that drives Carbon's Speed Cell 3D printer works. Adidas' Futurecraft 4D shoe was manufactured using Carbon's Speed Cell, developed by UNC and NCSU professor, Joe DeSimone, who is CEO of Carbon.