Don't need equations/calculations to think critically and logically. 

"We Can't Go Back To The Moon, That Technology Was Destroyed" Don Pettit, NASA Astronaut, 2017 

If you believe we traveled 240,000 miles away from Earth (and back!) with 60's technology, but fail to ask why we haven't gone 400 miles above Earth since 1972, then I can't help you. You're on your own in your fantastic little world of NASA lies.