Official NASA Research Mentions a Flat Earth?... Interesting...

Found a NASA research document from 1988 I'd like to bring to light. Even if a skeptic says "weeell they're just researching what it would be like if the Earth was flat", can I ask WHY??! I mean if we believe the globe model don't we also believe that everything out there is a ball and rotating? So wouldn't that mean this research is utterly useless if we live on a Globe? NASA lies, they know it's flat and they are covering up God. It's time to wake the masses!

http://www.nasa.gov/centers/dryden/pdf/88104main_H-1391.pdf

Luke 8:17
"For nothing is secret, that shall not be made manifest; neither any thing hid, that shall not be known and come abroad."