"We need you to draw seven lines, all of them strictly perpendicular; some with green ink and some with transparent."
https://www.youtube.com/watch?v=BKorP55Aqvg
Wouldn't this be possible if drawing them in nine dimensions? The 7+2 dimensions to draw the lines with green ink along one and transparent in the other dimension. Use an ink outside of our visible spectrum for transparent. Then have the observer or lines move along these +2 dimensions to turn all lines red thanks to the Doppler shift?

The Expert (Short Comedy Sketch)
Subscribe for more short comedy sketches & films: http://bit.ly/laurisb Buy Expert shirts & hoodies at https://laurisb.myshopify.com/ Funny business meeting ...