A weather balloon launched Sunday from Indiana University’s Northwest Quad was part of an international forecasting effort led by professor Travis O’Brien. The release also doubled as a video shoot ...
Full tutorial video link above the title materials I used : Soft copper wire : 20 gauge ( wire diameter 0.8mm ) : 8cm ( about 3 inch) for each link 20 gauge ( wire diameter 0.8mm ) : 1,5cm ( 0.6 inch) ...