▲ 27 ▼ If Aliens arrive with their tech to traverse world wouldn't our weapons pretty much look like sticks and stones to them? Also how do we not catch a disease from them or vice versa? (lemmy.world) submitted 2 years ago by Don_Dickle@lemmy.world to c/askscience@lemmy.world 21 comments fedilink hide all child comments
[–] superkret@feddit.org 9 points 2 years ago (2 children) If it burns up in the atmosphere with relativistic speed, it burns up the atmosphere. permalink fedilink source parent hideshow 4 child comments replies: [–] QuadratureSurfer@lemmy.world 5 points 2 years ago Relevant xkcd video: https://www.youtube.com/watch?v=3EI08o-IGYk permalink fedilink source parent [–] CanadaPlus@lemmy.sdf.org 2 points 2 years ago True, but damage still depends on craft size. At the really small end you're basically just talking about a normal cosmic ray. permalink fedilink source parent
[–] QuadratureSurfer@lemmy.world 5 points 2 years ago Relevant xkcd video: https://www.youtube.com/watch?v=3EI08o-IGYk permalink fedilink source parent
[–] CanadaPlus@lemmy.sdf.org 2 points 2 years ago True, but damage still depends on craft size. At the really small end you're basically just talking about a normal cosmic ray. permalink fedilink source parent