These are the most frequently used words in this book.
again
always
another
answer
anything
arlene
asked
big
call
called
came
come
commission
computer
day
down
end
engineers
engines
enough
even
everybody
everything
failure
few
feynman
figure
finally
find
first
flight
found
general
get
go
going
good
got
great
guy
hotel
idea
kind
knew
know
later
letter
little
look
lot
man
mean
meeting
mr
must
nasa
new
next
now
number
paper
people
place
problem
put
question
report
right
rocket
rogers
room
safety
say
science
seconds
see
should
shuttle
something
space
still
sure
system
take
talk
tell
things
think
thought
three
time
told
trying
two
use
want
went
work
years
yes