Did you know this?
Billy Joel never sells tickets to the front rows of his concerts.
Aside from wanting to beat the scalpers, he got tired of all the bored rich people staring up at him.
“They don’t stand up, make noise, [they just] sit there,” he said.
So now, he sends
CHEMISTRY FACT: Explosives have characteristic "detonation velocities" at which shockwaves expand. Smartphone video records at 30 FPS, so the adjacent frames here suggest the front expands at ~100 m/(1/30 sec), or 3,000 m/sec. Consistent with ammonium nitrate, not black powder.