In 1961, before the advent of digital presentations, NASA scientists relied on towering chalkboards and ladders to compute complex orbital equations by hand. These massive boards were filled with intricate calculations, showcasing the meticulous efforts that propelled humanity into space. #NASAHistory #SpaceRace #EngineeringHumor #BeforePowerPoint #RocketScience

I think I still have a box of the special type of transparency sheets you could feed into the photocopier, to copy maps and graphs from books to show in class. And draw on them live with overhead markers. #beforepowerpoint

El sistema solar. Esta fue épica. #CienciaTica "The Solar System" was an epic one. #BeforePowerPoint

From Space Flight Handbooks Vol 2: Lunar Flight Handbook (Part 1 - Background Material), 1963 #moon #BeforePowerpoint archive.org/details/SpaceFli…

Nice diagram from 1969 #NASA technical report. #BeforePowerPoint ntrs.nasa.gov/archive/nasa/c…

Amazing what you find when you pack up your office - remember these? #OfficeArcheology #BeforePowerPoint