thriteenthdoctor:

doctor who season eleven ✢ episode five, the tsuranga conundrum

The particle accelerator smashes the atoms together, like a little antimatter factory, to produce positrons, which are then stored very carefully inside electric and magnetic fields. The positrons interact with the fuel materials to produce heat, which produces thrust… It’s beautiful. Antimatter powering the movement of matter, bringing positrons into existence to move other forms of life across space. I love it! Conceptually… and actually.