According to the memories Su Ming had read, the Tayanans' Dimensional Teleporter and Polarity Converter should both have originally been kept at customs.
The former was a small, compass-like disc that could be voice-controlled. It guided its user through the Infinity Crossroads to the target dimension and could also transport the user back to the crossroads from any Technological Dimension.
Its operation depended entirely on the existence of the Infinity Crossroads. Calling it a teleporter was somewhat inaccurate; it required the current special environment to function. It was inferior to the Teleportation Gem embedded in Su Ming's forearm bones.
Kang the Conqueror of the Future was clearly more advanced than the present-day Tayanans in temporal and spatial technology. Even a damaged Teleportation Gem could allow Su Ming to return to the multiverse's selection interface, without any restrictions from his surroundings.
This showed just how important it was to choose the right research direction. Time and space were among the strongest concepts even in theory. Whether scientist or sorcerer, mastering the power of spacetime was a symbol of strength.
The Polarity Converter looked like a pistol without a barrel, consisting only of a grip and trigger, with an incomprehensible miniature device mounted on top.
Pulling its trigger while aiming it at someone whose polarity was to be changed could easily complete the conversion. Its principle was entirely unknown; in any case, it was difficult for human cognition to comprehend.
Yes, Strangle had not read any memories concerning Negative-Particle Technology from the Tayanans' brains.
Perhaps they had always had contingency plans in case their corpses fell into enemy hands. Once a body lost its life, the technological knowledge in its brain vanished as though erased by an eraser.
In fact, achieving this was simple. One only needed to place a tiny bomb