Sturdy See-Through Shields of the 30th Century

Force-field belt and the Bomb Defense Formula were revolutionary pieces of technology developed in the 30th century. However, while these were effectively used in that era, they were also employed a thousand years earlier, impacting the lives of two Earth's greatest heroes when in the hands of their nefarioius foes.

Brainiac Five was born Querl Dox, descendent to the planet of Colu-One's freedom fighter, Vril Dox. The computer tyrants indentured a human youth in Vril to be tutored by his surrogate father, the android known as Brainiac. However, when Vril led an uprising among his people against the Tyrants and their chief android agent, Brainiac left this world behind to seek others to subdue across the universe. Among the technologies Brainiac employed was his "ultra-force shield" belt, when even kept his eventual arch-enemy Superman of Earth-One at bay.

Per Degaton was recruited into the Time Trust of Earth-Two, a group of scientists who collaborated to develop a working time ray. Once this was completed, they enlisted the aid of the Justice Society of America, sending them a thousand years into the future to obtain the necessary components to construct a "bomb-defense formula" that could protect America from foreign threats. The Society succeeded in retrieving the necessary piece to assemble this protective device.

Querl improved upon his android "ancestor's" technology, developing a superior version known as his "force field belt" which could protect both himself and others with whom he projected the field around. With this and his 12th level of intelligence, Brainiac Five  obtained membership into the Legion of Super-Heroes, who benefited from these force fields throughout the years.

Degaton saw the effectiveness of the Time Trust's "Bomb-Defense Formula", and secretly sabotaged it so that a second test seemingly exposed this force field as defective. While the Time Trust and the United States decided not to rely on the formula, Degaton himself memorized how this device was assembled and... years later... reassembled it above his ally Brain Wave's satellite during a battle with the Justice Society. While this force field was effective, the Society was still able to defeat the villains in the end.

Eventually, Brainiac Five used his force-field belt against Pulsar Stargrave, a powerful opponent who himself claimed to be the 30th century version of Brainiac himself. If this is true, it was quite ironic that Querl was able to ultimately sequester Stargrave within a force field, with the meglamanica seemingly destroying himself within its transparent energized surface.

Equally interestingly, Pulsar's counterpart on Colu-Two, a synthetic servant of Vandal Savage known as the "Chief" used a seemingly similar force field. This one kept Superman and Power Girl ensnared for a period of time, until the Kryptonian cousins eventually freed themselves and confronted Savage and his forces.