Soft copper wire : 20 gauge ( wire diameter 0.8mm ) : 9cm ( 3.5 inch) for each wave link 3cm ( 1.2 inch) for each arc 4cm ( 1.5 inch) for the clasp This video was remade from the video: Knot wire ...
Columbia economist William Vickrey floated the concept of congestion pricing as early as the 1950s. In 2007, then-New York City Mayor Michael Bloomberg proposed a form of congestion pricing that was ...