space
what is the first planet in our solar system
mercury
what was the first car
moterwagon
what is the fastest jet
X-15
what is the brain of the computer
the cpu
what is the fastest train
SCMaglev
what is the size of the milky way
82,850
what is the fastest non-production car
The Thrust SSC
what is most expensive jet
Boeing BBJ 777
ENIAC