Ask HN: What is the implication of room-temperature super conductors?

That's like asking what would happen if Harry Potter magic came true. Nobody could encompass even the obvious consequences with any length of description. The first to get that stuff into military hardware will rule the world.

- The new build powerlines lose less energy while transporting the power across the country - the lhc could be operated over the whole year without interruptions(currenty shutting down over the summer to reduce load on the european powergrid) - more hospitals can use mri devices, since the costs for using them shrinks(an major point of them is the required cooling) - electrical engines and generators can be made much more efficient for medium and small sizes and leverage their efficiency up to 98% that currently only big engines can reach.