Since attending the Super Bowl last month, Taylor Swift has kept a low profile. But last night, she prerecorded a speech for the iHeartRadio Music Awards to accept the “Tour of the Century ...

The length of wire used is 4 times of ring circumference In the video I use a wire for the ring diameter of 1.5cm : 19 gauge ( wire diameter 0.9mm ) : 22cm ( 9 inch) 28 gauge ( wire diameter 0.3mm ...