The old Brainwave Amplifier was like a gigantic sphere with countless tiny mirrors lining its inner walls. After entering through the door, there was a floating bridge leading straight to the center of the sphere, where a circular platform held a console and a wired helmet.
When a Psionic put on the helmet, their brainwaves connected to the system. The machine then used signal amplification principles to spread those electrical signals across the globe, matching them against other people's brainwaves.
Everyone had brainwaves, but the X-Gene made the Mutants' alpha brainwave frequencies different from ordinary people's. That was how they could be identified.
Charles had been the one using this thing before, so there was not even a chair in front of the console. The little bald man carried a wheelchair wherever he went, so he had no need for one.
But someone as proud as Tony felt that merely repairing the Brainwave Amplifier designed and built by Hank would not show off his skills, so he simply tore it down and rebuilt it from scratch.
Those little mirrors on the inner walls of the spherical space, meant to gather brainwaves, were no longer needed either. In his view, having dispersed brainwaves drift dozens of meters before being reflected back by the insulated mirrored surfaces inside the giant sphere was completely unnecessary. Why not just design a fully enclosed helmet for the user to wear and be done with it?
Charles's old helmet even left the wearer's face exposed. Who was that supposed to impress? So Tony's new helmet drew inspiration from pyramids. It was a pointed tall hat that exposed only the eyes, since that was all the user needed to see the holographic projection.
Pyramids had actually been created by Apocalypse to gather Cosmic Energy. Of course, the