It's all perspective, they do actually shoot by like a bullet. I had the opportunity only once to see it so perfectly and potentially photogenically. Enroute to Prince Rupert one morning, our TCAS, (Traffic Collision Avoidance System) picked up an Alaska Ailines 737 we already knew was coming, 15 miles ahead of us. Our closure rate was about 860 knots, just under one minute 'till we met. From the time we made visual contact untill we passed was under 14 seconds. It was an impressive sight, big beautiful contrails in the rising sun shining on him, (he was headed to Seattle, to the south east), precisely nose to nose, only 2000' apart vertically, I wish I had my video camera going, but it happened far too fast.
Now for the math geeks, a nautical mile is approximately 6075 feet, I figured out that our closing speed was close to 1400 fps, 500 fps better than my .45 and 200 fps better than my 12 gauge and .22. I'm terrible at math, so I would like to know what our closure rate was, in both nautical and statute mph, as well as kph, fps and mps.;-) BTW, a nautical mile is approximately 1.15 statue mile. A statute mile is 5280 feet. There is a virtual beer for the correct answers.