It took me a second to get the wave line (I thought it had something to do with time relativity, since there was a time scale) but it looks like the line is a l

It took me a second to get the wave line (I thought it had something to do with time relativity, since there was a time scale) but it looks like the line is a literal 'string' of distance measurement just wound back and forth to compress it. If it's an accurate compression, I thought it was pretty clever and impressive.