Venkatesh Rao@vgrNew high-watermark for the art of the animated gif. ππππQuote TweetVala Afshar@ValaAfsharΒ·Nov 19, 2015Speed comparisons: Boeing 747 : 550 mph Space probe (spacecraft) :36,000 mph https://pic.twitter.com/Ibt7w82a6K6:50 AM Β· Nov 19, 20152 Retweets2 Likes