Congress forcing a compromise(d) Space Shuttle design on NASA. Among other things, the space shuttle was the first human space vehicle to use solid rocket boosters. Solid rocket boosters were previously deemed unsafe for human space flight because once they're lit, they don't stop boosting until the fuel is gone. Liquid-fueled rockets can be shut off.
Definition of conductive. : having conductivity : relating to conduction (as of electricity)
The ability or power to conduct or transmit heat, electricity, or sound. The ability of a body structure to transmit an electric impulse, especially the ability of a nerve to transmit a wave of excitation. conductivity. The ability to transfer heat, electricity, or sound by conduction. See conductance.