927Combining two different internet debates(sopuli.xyz)posted 2 years ago byFubarberry@sopuli.xyzin memes@lemmy.mlView comments310 commentssavehidereportSort:HotTopControversialNewOldYou are viewing a single thread.View all comments View context [ +- ]TCBloo@lemmy.world2 points2 years agoViolates conservation of momentum unless the portal/train slow down. permalinksavereportparentreply[ +- ]whileloop@lemmy.world2 points2 years agoYes, but portals violate basic physics anyway. A portal that faces downwards into another portal is effectively a perpetual motion machine. Drop a ferromagnetic object into the loop and wrap some wires around the loop, now you have an infinite electric generator. permalinksavereportparentreply