6,500: Speed, in miles per hour, attained by NASA’s “scramjet”, the first jet aircraft to go Mach 9.6, or 2 miles per second

20: Number of minutes it would take to fly from New York City to Los Angeles at that speed

That from the most recent Time issue about NASA’s scramjet that can fly at speeds up to Mach 10 and recently broke the speed record.

I’ll be flying from Dulles to San Fran soon and that will be a 6 hour flight - wish I could hook myself up with a scramjet!