IBM PC XT
On a trip to the doctor, Sheldon uses a PC XT to download rocket thrust to weight ratios from NASA.
Sheldon becomes obsessed with proving that is to possible to recover a rocket booster by landing it back on Earth.
On a trip to the doctor, Sheldon uses a PC XT to download rocket thrust to weight ratios from NASA.
Sheldon uses a Tandy 1000 in the library to perform rocket calculations.