Check out these higher precision engineering photos:
AF Memorial_Light the Night
Image by catface3
Air Force Memorial, Washington, DC, on a hill overlooking the Pentagon. Subsequent to Arlington National Cemetery and to Ft Myer, Virginia, exactly where the Wright brothers 1st demonstrated their Flyer for the Army.
"The Memorial itself is 270 feet (82 m) higher and appears to be soaring its array of stainless steel arcs against the sky evokes the image of "contrails of the Air Force Thunderbirds as they peel back in a precision ‘bomb burst’ maneuver." Only three of the 4 contrails are depicted, as the absent fourth evokes the missing man formation traditionally utilised at Air Force funeral fly-overs."
"The spire structure consists of stainless steel plates with high-strength concrete filling the lower 2/3rds of every single spire. The upper third is hollow stainless steel.[six] At the transition amongst concrete and hollow steel portions, dampers are offered to dissipate wind sway power and eradicate the threat of aerodynamic instability. Every single damper consists of a lead ball weighing about a ton each and every, allowed to roll inside a steel box. The structural design of the memorial was completed by engineering."