A method of producing atomic or quantum fuel includes the steps of providing a plurality of spinning bodies having mass, angularly accelerating the spinning bodies so as to spin each spinning body at angular velocities approaching the speed of light to thereby store energy in the spinning bodies, and in one embodiment so as to cause time dilation, triggering a conversion of the stored energy from an angular momentum of at least parts of the spinning bodies so as to convert the stored energy to translational or radiation energy.