Other synthetic molecular knots have a distinct globular shape and nanometer sized dimensions that make them potential building blocks in nanotechnology.
Following a low-level supersonic flypast and during a left bank at about 450 knots (830 km/h) toward the air show's 120,000 spectators, the pilot started a climb.
In grading lumber and structural timber, knots are classified according to their form, size, soundness, and the firmness with which they are held in place.