Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
Check Out the New Far-Out Fliers of NASA's Famed X-Plane Program
For seven decades experimental X-planes have been developed and flown in the Mojave desert. NASA is now building the future of flight like an all electric plane and a quieter supersonic jet.
