Explainiosity on Instagram: "The post showcases the iconic 100-meter final at the London 2012 Olympics, a race that delivered pure, jaw-dropping speed from the opening gun to the finish line and instantly broke the internet across sports feeds. Usain Bolt explodes out of the blocks and storms down the track, defending his Olympic title in a blistering 9.63 seconds, just shy of his own world record. Right behind him, Yohan Blake charges through for silver while Justin Gatlin locks in bronze, as t