Isn't the Shuttle an H2+O2 rocket? So everything the greenies would have done to their calculators after turning them on would have been wrong. Sure, their was lots of harder to compute carbon burned prior to launch to make it possible, but as for the launch itself the calculator had it right when it was first turned on.
The propellant mixture in each SRB motor consists of an ammonium perchlorate (oxidizer, 69.6 % by weight), aluminum (fuel, 16 %), iron oxide (a catalyst, 0.4 %), a polymer (such as PBAN or HTPB - a binder that holds the mixture together, 12.04 %), and an epoxy curing agent (1.96 %). This mixture develops a specific impulse of 242 seconds at sea level / 268 seconds vacuum.
wikipedia