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)
By Anne Marie Helmenstine, Ph.D. Electrical Conductivity Definition: Electrical conductivity is the measure of the amount of electrical current a material can carry.Electrical conductivity is denoted by the symbol Ï and has SI units of siemens per meter (S/m).Most Conductive Element.y Anne Marie Helmenstine, Ph.D. Electrical Conductivity Definition: Electrical conductivity is the measure of the amount of electrical current a material can carry.