SSTF@lemmy.world to pics@lemmy.world · 18 days ago[OC] Fort Ligonier, Pennsylvanialemmy.worldimagemessage-square3fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1image[OC] Fort Ligonier, Pennsylvanialemmy.worldSSTF@lemmy.world to pics@lemmy.world · 18 days agomessage-square3fedilink
minus-squareAwkwardLookMonkeyPuppet@lemmy.worldlinkfedilinkEnglisharrow-up0·16 days agoWhy do the spikes on the bottom wall point inwards as well as outward?
minus-squareSSTF@lemmy.worldOPlinkfedilinkarrow-up0·15 days agoOn the other side of the spike wall in an inner moat. I presume the inner spikes help trap people and creates a kill zone. Also arranging spikes in an X pattern is simple to produce.
![[OC] Fort Ligonier, Pennsylvania](https://lemmy.world/pictrs/image/3351da89-e609-4912-b06f-0b4d6959b90f.jpeg){kind=link}
Why do the spikes on the bottom wall point inwards as well as outward?
On the other side of the spike wall in an inner moat. I presume the inner spikes help trap people and creates a kill zone. Also arranging spikes in an X pattern is simple to produce.